BG(2)EE Opcodes

#0 (0x0) Stat: AC vs. Damage Type Modifier Variants: IWD2
Parameter #1: AC Modifier
Parameter #2: Type

Description:

Applies the modifier value specified by the AC Modifier field to the category specified by the Type field.

Known values for Type are:

0 ⟶ All
1 ⟶ Crushing
2 ⟶ Missile
4 ⟶ Piercing
8 ⟶ Slashing
16 ⟶ Base AC setting
- Sets the targets AC to the value specified by the AC Modifier field. If the targets AC is already AC Modifier or below, this effect will do nothing.

Each modifier type to AC from this opcode is capped to the range [-20,20]. Each AC type total is capped to the range [-32768,32767].

Note: IWD1 and PST use a slightly different version. The “Base AC” sets to field - 1 instead.
IWD2 uses different parameters altogether.

Note:

Type=0:
- Modifies ARMORCLASS.
- With Timing Modes 1/4/7, alters target's base Armor Class.
Type=1:
- Modifies ACCRUSHINGMOD.
- With Timing Modes 1/4/7, alters target's base Crushing AC.
Type=2:
- Modifies ACMISSILEMOD.
- With Timing Modes 1/4/7, alters target's base Missile AC.
Type=4:
- Modifies ACPIERCINGMOD.
- With Timing Modes 1/4/7, alters target's base Piercing AC.
Type=8:
- Modifies ACSLASHINGMOD.
- With Timing Modes 1/4/7, alters target's base Slashing AC.
Type=16:
- Modifies ARMORCLASS.
- With Timing Modes 1/4/7, alters target's base Armor Class, still subject to "only if better/lower", checked against base value, not current effective value.

#1 (0x1) Stat: Attacks Per Round Modifier Variants: BG1
Parameter #1: Key Modifier
Parameter #2: Type

Description:

Alters a characters Attacks per Round, by changing the Key by the modifier value specified by the Key Value field, in the style specified by Type field.

Key	Attacks per Round
0	0
1	1
2	2
3	3
4	4
5	5
6	0.5
7	1.5
8	2.5
9	3.5
10	4.5

Known values for Type are:

0 ⟶ Cumulative Modifier: Key = Key + 'Key Modifier' value
1 ⟶ Flat Value Modifier: Key = 'Key Modifier' value
2 ⟶ Percentage Modifier: Key = (Key * 'Key Modifier' value) / 100
3 ⟶ Final Value Modifier: Key = 'Key Modifier' value

This effect modifies NUMBEROFATTACKS.

Info: When this opcode is stacked, the number of attacks are stacked, not the values of the Key Modifier.

Note: Key Modifier can take negative values. These values match their positive counterparts (e.g., "-6" corresponds to "-0.5").

Info: Type=3 (Set Final):

Only functions when using Timing Modes 2/5/8 (even in SPLs).
Haste and Slow affect it as normal, though the displayed APR in the Record Screen won't change.
Overrides base, Type=0, Type=1, Type=2, proficiency and warrior class APR bonuses.
- Type=1 just overrides the base and previous Type=1 and Type=2 effects.
Only the first Type=3 effect will take hold; any later ones will be skipped.

Important: Timing Modes 1/4/7 alters the creature's base APR stat, leaving behind no removable effect.

#2 (0x2) Cure: Sleep
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Removes opcode #39 effects and the STATE_SLEEPING flag from the targeted creature(s).
This effect ignores durations attributed to it.

Note: Does not remove the STATE_HELPLESS flag.

Note: At least in EEs, it can remove opcode #177 effects targeting an EFF with opcode #39. Does not always work when delayed.

#3 (0x3) State: Berserking Variants: IWD1
Parameter #1: Irrelevant
Parameter #2: Type

Description:

Applies the berserk effect to the targeted creature(s) in the style specified by the Type field.
Target will uncontrollably attack enemies if any are in view, and will occasionally attack neutral creatures.
Known values for Type are:

0 ⟶ Default/In Combat: only berserk while in combat.
1 ⟶ Constant: always berserk, maintains BERSERK_ALWAYS_ACTIVE and sets BERSERKSTAGE2 to 1.
2 ⟶ Blood Rage: doesn't exist in EE's, values 2+ function the same as 0.

This opcode sets the STATE_BERSERK flag.

Note: Being “in combat” is reliant upon the presence of visible, non-sleeping enemies, but they will attack anyone they can see (including sleeping creatures), ally, neutral, or enemy, without preference (beyond whom is closer).

Info: STATE_BERSERK specs:

Grants a +2 bonus to THAC0 and Damage.
While "in combat" or "Constant":
- Creature is unseletectable, Inventory is disabled.
- The creature's AI scripts are disabled.
- The creature will randomly execute action ~ AttackReevaluate([ANYONE],15) (or similar, the exact attack action is unknown).
- Disables Saving while affecting a Party Member (Displayed message: "You do not control all your Party Members")

Note:

Forces creature(s) to use a melee weapon if possible.
- If a certain creature is equipped with a Cursed ranged weapon, this opcode will not force it to switch to a melee weapon.

Note: This effect only affects party members (this is not true for EE games, it works fine on non-party creatures.)

Note: The second paragraph hasn’t been verified for PST and BG1 yet, but likely holds.

Important: Used with Timing Modes 1/4/7 results in setting STATE_BERSERK when it triggers (and using its default behavior), rather than attaching a removable effect with selected behavior.

Note: “Morale Failure: Berserk” does NOT use this or any of the other berserk opcodes, nor does it set STATE_BERSERK.

#4 (0x4) Cure: Berserking
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Removes opcode #3 effects and STATE_BERSERK from the targeted creature(s). Does not remove opcode #245, opcode #246 and opcode #247 effects.
This effect ignores durations attributed to it.

Important: Both parameters should be 0 (zero).

Note: At least in BG2 and EEs, this effect only affects player characters.

Note: At least in BG2 and EEs, this effect can remove opcode #177 effects targeting an EFF with opcode #3.

#5 (0x5) Charm: Charm Specific Creature Variants: IWD1 IWD2 PST
Parameter #1: General Type
Parameter #2: Charm Type

Description:

Charms the targeted creature(s) according to value in the Charm Type field, if the target is matched by the value in the General Type field. Values for General Type are from GENERAL.IDS.
Known values for Charm Type are:

0 ⟶ Neutral Charm
- Does not alter targets allegiance stat.
- Maintains REALLYCHARMED on the target if the caster is GOODCUTOFF.
- Maintains CHARMED_PC on the target if the caster is NOTGOOD.
- Maintains Portrait Icon Charm on the target.
- Effect ends if the creature is attacked by GOODCUTOFF.
- Target displays "charmed" string.
1 ⟶ Hostile Charm
- Sets targets allegiance to GOODCUTOFF if the caster is EVILCUTOFF.
- Sets targets allegiance to EVILCUTOFF if the caster is NOTEVIL.
- Maintains REALLYCHARMED on the target if the caster is GOODCUTOFF.
- Maintains CHARMED_PC on the target if the caster is NOTGOOD.
- Maintains Portrait Icon Charm on the target.
- Effect ends if the creature is attacked by GOODCUTOFF.
- Target displays "Charmed" string.
2 ⟶ Neutral Dire Charm
- Does not alter targets allegiance stat.
- Maintains CONTROLLED on the target if the caster is GOODCUTOFF.
- Maintains ENEMY on the target if the caster is NOTGOOD.
- Maintains Portrait Icon Dire Charm on the target.
- Effect ends if the creature is attacked by GOODCUTOFF.
- Target displays "dire charmed" string.
3 ⟶ Hostile Dire Charm
- Sets targets allegiance to GOODCUTOFF if the caster is EVILCUTOFF.
- Sets targets allegiance to EVILCUTOFF if the caster is NOTEVIL.
- Maintains CONTROLLED on the target if the caster is GOODCUTOFF.
- Maintains ENEMY on the target if the caster is NOTGOOD.
- Maintains Portrait Icon Dire Charm on the target.
- Effect ends if the creature is attacked by GOODCUTOFF.
- Target displays "dire charmed" string.
4 ⟶ Controlled by Cleric
- Sets targets allegiance to GOODCUTOFF if the caster is EVILCUTOFF.
- Sets targets allegiance to EVILCUTOFF if the caster is NOTEVIL.
- Maintains CONTROLLED on the target if the caster is GOODCUTOFF.
- Maintains ENEMY on the target if the caster is NOTGOOD.
- Target displays "turned" string.
5 ⟶ Thrull Charm
- Does not alter targets allegiance stat.
- Maintains ENEMY on the target (regardless of casters Allegience).
- Sets THRULLCHARM to 1.
- Maintains Portrait Icon Charm on the target.
- Target displays "Charmed" string.
1000 ⟶ Neutral Charm (no Feedback)
- Same as 0, but target does not display any string.
1001 ⟶ Hostile Charm (no Feedback)
- Same as 1, but target does not display any string.
1002 ⟶ Neutral Domination. Same as 2, except:
- Maintains Portrait Icon Domination on the target.
- Target does not display any string.
1003 ⟶ Hostile Domination. Same as 3, except:
- Maintains Portrait Icon Domination on the target.
- Target does not display any string.
1004 ⟶ Controlled by Cleric (no Feedback)
- Same as 4, but target does not display any string.
1005 ⟶ Thrull Charm (no Feedback)
- Same as 5, but target does not display any string.

Note: If this effect turns a party member hostile, it will disable all of their scripts.

Note: In EEs, the Dice Thrown parameter can be used to override the maintained EA Value. It is used in all but the first application of the effect.

#6 (0x6) Stat: Charisma Modifier Variants: IWD1 PST
Parameter #1: Statistic Modifier
Parameter #2: Type

Description:

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

0 ⟶ Cumulative Modifier: Charisma = Charisma + 'Statistic Modifier' value
1 ⟶ Flat Value Modifier: Charisma = 'Statistic Modifier' value
2 ⟶ Percentage Modifier: Charisma = (Charisma * 'Statistic Modifier' value) / 100

Statistic Modifier can be positive or negative.

The effect modifies CHR.

Info: All games but EEs:

With a Timing Modes of Permanent or Delayed, if Type = 0 and Statistic Modifier is positive, the statistic will alter and remain shown in white text, and a message 'Charisma raised permanently' will be shown.
With a Timing Modes of Permanent or Delayed, if Type is 1 or 2, or Statistic Modifier is negative, the statistic will alter and remain shown in white text, though no message is shown.
With all other Timing Modes, the statistic will alter and be shown in red text.

On EEs:

There's no feedback message about stat being raised permanently in the EE's – it must be done separately with opcode #139.
The opcode itself provides no coloring anymore (it's been externalized through "UI.menu")
- An effective value > base value ⟶ green.
- An effective value < base value ⟶ red.
- An effective value = base value ⟶ white/default.

Important: With Timing Modes 1/4/7, the creature's base Charisma is altered, leaving behind no removable effect.

Info: Final values are capped to the bound range (0,25) in game (40 in IWD2).

#7 (0x7) Colour: Set Character colours by Palette Variants: IWD1
Parameter #1: Gradient Number
Parameter #2: Location

Description:

Alters the colour of the area specified by the Location field, to the colour gradient specified by the Gradient Number field.
Known values for Location are:

0 – 6: Avatar/Armor
- 00 ⟶ Belt Buckle (on armour) or amulets (on robes) – entire body for some animations
- 01 ⟶ Minor colour
- 02 ⟶ Major colour
- 03 ⟶ Skin colour
- 04 ⟶ Strap colour (on armour) or minor trimming (on robes – the centre strip down a robe and the hem on some robes)
- 05 ⟶ Armor colour (and major trimming on robe – cross trim and cape trim on Robe of Archmagi)
- 06 ⟶ Hair colour
16 – 22: Weapon
- 16 ⟶ Quillons or Crossguard
- 20 ⟶ Grip (usually not visible as it's in the characters hand)
- 21 ⟶ Blade or major portion of weapon
32 – 40: Shield
- 32 ⟶ Shield hub
- 33 ⟶ Shield interior
- 34 ⟶ Shield panelling
- 37 ⟶ Shield rim
48 – 54: Helmet
- 48 ⟶ Helm ornamentation – i.e. wings
- 49 ⟶ Helm ornamentation – i.e. feathers/horsehair
- 50 ⟶ Helm ornamentation – i.e. feathers/horsehair
- 52 ⟶ Helm face
- 53 ⟶ Helm – the main covering
255 ⟶ Whole Body (at least in IWD2 and EEs)

Warning: Other values crash immediately or when opening or manipulating Inventory.

Info:

Each Item Type has 7 slots/locations, corresponding to a different set of Palette indexes that they will replace.
Near Infinity lists them as Grey, Cyan/Teal, Magenta/Pink, Yellow, Red, Blue, and Green.
While these colors are arbitrary, they best represent the palette used in animation/paperdoll BAMs by default (before being recolored), so you can look at the BAM file and know which colors will be replaced.
0=Grey, 1=Cyan, 2=Magenta, 3=Yellow, 4=Red, 5=Blue, 6=Green.
+16 for weapons, +32 for shields, +48 for helmets.
The names already listed for some of these locations in IESDP are accurate, as they correspond to their general use in the vanilla game, but all 7 slots can be used for each item, provided their BAM file makes use of them.
Palette indexes will be replaced by the gradient specified for those locations:
- Index 0–3 are reserved for Transparency and Shadows, they are not replaced.
- Index 4–15: Grey
- Index 16–27: Cyan
- Index 28–39: Pink
- Index 40–51: Yellow
- Index 52–63: Red
- Index 64–75: Blue
- Index 76–87: Green
  (7 groups of 12 indexes, each exclusive to one location)
- Index 88–95: (Grey + Cyan)
- Index 96–103: (Grey + Magenta)
- Index 104–111: (Grey + Yellow)
- Index 112–119: (Grey + Red)
- Index 120–127: (Grey + Blue)
- Index 128–135: (Grey + Green)
- Index 136–143: (Cyan + Magenta)
- Index 144–151: (Cyan + Yellow)
- Index 152–159: (Cyan + Red)
- Index 160–167: (Cyan + Blue)
- Index 168–175: (Cyan + Green)
- Index 176–183: (Magenta + Yellow)
- Index 184–191: (Magenta + Red)
- Index 192–199: (Magenta + Blue)
- Index 200–207: (Magenta + Green)
- Index 208–215: (Yellow + Red)
- Index 216–223: (Yellow + Blue)
- Index 224–231: (Yellow + Green)
- Index 232–239: (Red + Blue)
- Index 240–247: (Red + Green)
- Index 248–255: (Blue + Green)
  (21 groups of 8 indexes, each shared by a different combination of two locations)

#8 (0x8) Colour: Change by RGB Variants: BG1 IWD1 PST
Parameter #1: RGB colour
Parameter #2: Location

Description:

Alters the colour of the area specified by the Location field, to the colour specified by the RGB Colour field.
The RGB Colour field is handled as follows:

Second byte = Red (0–255)
Third byte = Green (0–255)
Fourth byte = Blue (0–255)

Known values for Location are:

0 – 6: Avatar/Armor
- 00 ⟶ Belt Buckle (on armour) or amulets (on robes) – entire body for some animations
- 01 ⟶ Minor colour
- 02 ⟶ Major colour
- 03 ⟶ Skin colour
- 04 ⟶ Strap colour (on armour) or minor trimming (on robes – the centre strip down a robe and the hem on some robes)
- 05 ⟶ Armor colour (and major trimming on robe – cross trim and cape trim on Robe of Archmagi)
- 06 ⟶ Hair colour
16 – 22: Weapon
- 16 ⟶ Quillons or Crossguard
- 20 ⟶ Grip (usually not visible as it's in the characters hand)
- 21 ⟶ Blade or major portion of weapon
32 – 40: Shield
- 32 ⟶ Shield hub
- 33 ⟶ Shield interior
- 34 ⟶ Shield panelling
- 37 ⟶ Shield rim
48 – 54: Helmet
- 48 ⟶ Helm ornamentation – i.e. wings
- 49 ⟶ Helm ornamentation – i.e. feathers/horsehair
- 50 ⟶ Helm ornamentation – i.e. feathers/horsehair
- 52 ⟶ Helm face
- 53 ⟶ Helm – the main covering
255 ⟶ Whole Body (at least in IWD2 and EEs)

Warning: Other values crash immediately or when opening or manipulating Inventory.
See opcode #7 for further details about this topic.

#9 (0x9) Colour: Glow Pulse Variants: BG1 IWD1 PST
Parameter #1: RGB Colour
Parameter #2: Location and Speed

Description:

Pulses the area specified by the Location field, at the rate specified by the Speed field, with the colour specified by the RGB Colour field. If the colour values are all set to 0, the glow effect only occurs if the creature is in darkness; outside at night, inside a building, or standing in shadows.
The RGB Colour field is handled as follows:

Second byte = Red (0–255)
Third byte = Green (0–255)
Fourth byte = Blue (0–255)

The Location and Speed field is handled as follows:

First byte = Location
Third byte = Speed (0–255)

A speed of 0 does not pulsate. A speed of 1 is fastest, and a speed of 255 is slowest.
Known values for Location are:

0 – 6: Avatar/Armor
- 00 ⟶ Belt Buckle (on armour) or amulets (on robes) – entire body for some animations
- 01 ⟶ Minor colour
- 02 ⟶ Major colour
- 03 ⟶ Skin colour
- 04 ⟶ Strap colour (on armour) or minor trimming (on robes – the centre strip down a robe and the hem on some robes)
- 05 ⟶ Armor colour (and major trimming on robe – cross trim and cape trim on Robe of Archmagi)
- 06 ⟶ Hair colour
16 – 22: Weapon
- 16 ⟶ Quillons or Crossguard
- 20 ⟶ Grip (usually not visible as it's in the characters hand)
- 21 ⟶ Blade or major portion of weapon
32 – 40: Shield
- 32 ⟶ Shield hub
- 33 ⟶ Shield interior
- 34 ⟶ Shield panelling
- 37 ⟶ Shield rim
48 – 54: Helmet
- 48 ⟶ Helm ornamentation – i.e. wings
- 49 ⟶ Helm ornamentation – i.e. feathers/horsehair
- 50 ⟶ Helm ornamentation – i.e. feathers/horsehair
- 52 ⟶ Helm face
- 53 ⟶ Helm – the main covering
255 ⟶ Whole Body (at least in IWD2 and EEs)

Warning: Other values crash immediately or when opening or manipulating Inventory.
See opcode #7 for further details about this topic.

#10 (0xA) Stat: Constitution Modifier Variants: IWD1 PST
Parameter #1: Statistic Modifier
Parameter #2: Type

Description:

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

0 ⟶ Cumulative Modifier: Constitution = Constitution + 'Statistic Modifier' value
1 ⟶ Flat Value Modifier: Constitution = 'Statistic Modifier' value
2 ⟶ Percentage Modifier: Constitution = (Constitution * 'Statistic Modifier' value) / 100

Statistic Modifier can be positive or negative.

The effect modifies CON.

Info: All games but EEs:

With a Timing Modes of Permanent or Delayed, if Type = 0 and Statistic Modifier is positive, the statistic will alter and remain shown in white text, and a message 'Constitution raised permanently' will be shown.
With a Timing Modes of Permanent or Delayed, if Type is 1 or 2, or Statistic Modifier is negative, the statistic will alter and remain shown in white text, though no message is shown.
With all other Timing Modes, the statistic will alter and be shown in red text.

On EEs:

There's no feedback message about stat being raised permanently in the EE's – it must be done separately with opcode #139.
The opcode itself provides no coloring anymore (it's been externalized through "UI.menu")
- An effective value > base value ⟶ green.
- An effective value < base value ⟶ red.
- An effective value = base value ⟶ white/default.

Important: With Timing Modes 1/4/7, the creature's base Constitution is altered, leaving behind no removable effect.

Info: Final values are capped to the bound range (0,25) in game (40 in IWD2).

#11 (0xB) Cure: Poison
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Removes opcode #25 poison effects and STATE_POISONED from the targeted creature(s).

Info: This effect ignores durations attributed to it.

Info: At least in EEs, this effect can remove opcode #177 effects targeting an EFF with opcode #25.

#12 (0xC) HP: Damage Variants: BG2 PST BG1
Parameter #1: Damage Amount
Parameter #2: Mode & Damage Type
Special: Flags

Description:

Damages the target by the value specified by the Damage Amount field, with the damage type specified by the Type field.
Known values for Mode & Damage Type are:

Value (hex)	`Damage Type`	`Mode`
0x00000000	CRUSHING	Normal
0x00000001	CRUSHING	Set to Value
0x00000002	CRUSHING	Set to Percentage
0x00000003	CRUSHING	Reduce by Percentage

0x00010000	ACID	Normal
0x00010001	ACID	Set to Value
0x00010002	ACID	Set to Percentage
0x00010003	ACID	Reduce by Percentage

0x00020000	COLD	Normal
0x00020001	COLD	Set to Value
0x00020002	COLD	Set to Percentage
0x00020003	COLD	Reduce by Percentage

0x00040000	ELECTRICITY	Normal
0x00040001	ELECTRICITY	Set to Value
0x00040002	ELECTRICITY	Set to Percentage
0x00040003	ELECTRICITY	Reduce by Percentage

0x00080000	FIRE	Normal
0x00080001	FIRE	Set to Value
0x00080002	FIRE	Set to Percentage
0x00080003	FIRE	Reduce by Percentage

0x00100000	PIERCING	Normal
0x00100001	PIERCING	Set to Value
0x00100002	PIERCING	Set to Percentage
0x00100003	PIERCING	Reduce by Percentage

0x00200000	POISON	Normal
0x00200001	POISON	Set to Value
0x00200002	POISON	Set to Percentage
0x00200003	POISON	Reduce by Percentage

0x00400000	MAGIC	Normal
0x00400001	MAGIC	Set to Value
0x00400002	MAGIC	Set to Percentage
0x00400003	MAGIC	Reduce by Percentage

0x00800000	MISSILE	Normal
0x00800001	MISSILE	Set to Value
0x00800002	MISSILE	Set to Percentage
0x00800003	MISSILE	Reduce by Percentage

0x01000000	SLASHING	Normal
0x01000001	SLASHING	Set to Value
0x01000002	SLASHING	Set to Percentage
0x01000003	SLASHING	Reduce by Percentage

0x02000000	MAGICFIRE	Normal
0x02000001	MAGICFIRE	Set to Value
0x02000002	MAGICFIRE	Set to Percentage
0x02000003	MAGICFIRE	Reduce by Percentage

0x04000000	MAGICCOLD	Normal
0x04000001	MAGICCOLD	Set to Value
0x04000002	MAGICCOLD	Set to Percentage
0x04000003	MAGICCOLD	Reduce by Percentage

0x08000000	STUNNING	Normal
0x08000001	STUNNING	Set to Value
0x08000002	STUNNING	Set to Percentage
0x08000003	STUNNING	Reduce by Percentage

The Dice values can be used to inflict varying damage amounts – e.g. 2d6 would do 2–12 damage (Damage type is still specified by the Type value).

Damage Amount can be positive or negative (though the damage sound will play in either case).
If Damage Amount and the Dice values are both non-zero, the total damage inflicted is: 'Damage Amount' + Dice value.

Note: STUNNING damage does not stun the target. STUNNING damage cannot kill a creature, creatures are reduced to 1 HP and are knocked unconscious.

Useful bit values for Save Type are:

Bit 24 ⟶ Bypass Mirror Image
Bit 25 ⟶ Ignore difficulty

Note: Damage type POISON automatically uses save flag Bypass Mirror Image.

Known bit values for Flags are:

Bit 0 ⟶ Drain HP to caster (cumulative)
Bit 1 ⟶ As bit 0 but caster and target are reversed (cumulative)
Bit 2 ⟶ Fist damage only (source has to have fists equipped, delays later effects)
Bit 3 ⟶ Drain HP to caster (non-cumulative)
Bit 4 ⟶ As bit 3 but caster and target are reversed (non-cumulative)
Bit 5 ⟶ Suppress combat log feedback string
Bit 6 ⟶ Damage inflicted is limited to amount available by target (checks MINHITPOINTS and works in reverse if bits 1 or 4 are set)
Bit 7 ⟶ Damage inflicted is limited to the caster's (MAXHITPOINTS - CURRENTHP) (works in reverse if bits 1 or 4 are set)
Bit 8 ⟶ Save for half
Bit 9 ⟶ Fail for half: A failed (or lack of) saving throw results in half damage.
Bit 10 ⟶ Does not wake sleepers

Info:

Bits 0, 1, 3, and 4 are mutually exclusive, while bits 6 and 7 do not require any of the HP drain bits to be set to function.
- However, bits 6 and 7 are often used together to achieve desired HP drain behavior. For instance, bit7 in conjunction with bit1 is used in IWD:EE/SoD's "Shadow Pact" ability ("SPIN195.spl"/"BDSHPACT.spl") for shadows to prevent them from inflicting more damage on reverse HP drain than necessary to heal them to normal max HP.
In all cases, HP drain now only increases maximum HP if the character is at full health and there are extra HP remaining from the drain, which can happen even during the drain. Current HP gained is always cumulative (bits 0,1,3,4) if the caster is injured. Extra HP gained by non-cumulative HP drain (bits 3,4) may still coexist on the same creature. This means that the caster can still benefit from lower HP drain if the effect expires later than the higher HP drain effect.
Example: The caster at 3/4 HP can increase his/her HP to 7/7 with one casting of Larloch's Minor Drain (if 4 is rolled) and 8/8 with another casting if 4 is rolled again, otherwise nothing seems to happen despite the damage inflicted. The caster may further benefit with additional castings if injured, but cannot go beyond 8/8 HP. This all assumes there is sufficient HP to drain (since bit 6 is now set in "SPWI119.spl").
Extra maximum HP effects carried on the creature now have their mschool, msectype, resource, resist_dispel, dispel_level etc properly set. See opcode #18 for how non-cumulative HP gain is stored.

Note: If this effect reduces target to -20 (Allegiance: PC) or -9 (any other Allegiance value) hit points, it also applies opcode #13 of the specified type:

CRUSHING/SLASHING/PIERCING: Exploding Death
ACID/Unlisted: Acid Death
COLD/MAGICCOLD: Frozen Death
FIRE/MAGICFIRE: Burning Death
ELECTRICITY: Electrified Death
MAGIC/MISSILE/POISON: Normal Death

Info: Just in case anyone is doing UI feedback text replacement, these are the hex colors for the various damage types:
^0xaabbggrr (aa = alpha/transparency, bb = Blue, gg = Green, rr = Red)

CRUSHING, SLASHING, PIERCING, MISSILE, STUNNING: 0xffbed7d7
POISON: 0xff76e4c7
FIRE, MAGICFIRE: 0xff002a9c
COLD, MAGICCOLD: 0xffffbf00
ELECTRICITY: 0xfffff97d
ACID: 0xff19bba8
MAGIC: 0xff00d7ff

#13 (0xD) Death: Instant Death Variants: BG1 IWD1 PST
Parameter #1: Text Notification
Parameter #2: Death Type

Description:

Instantly kills the targeted creature(s), in the style specified by the Death Type value.
Known values for Text Notification are:

0 ⟶ Show death message
1 ⟶ Don't show death message

Known values for Death Type are:

0 ⟶ Acid death
- Sets STATE_ACID_DEATH, STATE_DEAD
- Kicked from party, drops inventory
1 ⟶ Burning death
- Sets STATE_FLAME_DEATH, STATE_DEAD
- Character Tint Solid, character color ~[0x00404040] (Darkens avatar)
- Kicked from party, drops inventory
2 ⟶ Crushed death
- Sets STATE_EXPLODING_DEATH, STATE_DEAD
- Kicked from party, drops inventory
4 ⟶ Normal death
- Sets STATE_DEAD
- Drops inventory
8 ⟶ Chunked death
- Sets STATE_EXPLODING_DEATH, STATE_DEAD
- Sets ANIMATE[0x230][EXPLODING_TORSO]
- Plays sound ("GORE.WAV")/("GORE2.WAV")
- Kicked from party, drops inventory, sets all color indexes to 70
16 ⟶ Stoned death
- Sets STATE_STONE_DEATH
- Any hostile action against the creature(s) applies an Exploding Stoned Death to them
- Kicked from party, retains inventory, overlay's color index 72
32 ⟶ Freezing death
- Applies Exploding Freezing Death to the target with a (random) 0-5 second delay
- Sets STATE_FROZEN_DEATH
- Any hostile action against the creature applies an Exploding Freezing Death to the target
- Kicked from party, retains inventory, overlay's color index 71
64 ⟶ Exploding stoned death/Level Drain death
- Sets STATE_EXPLODING_DEATH, STATE_DEAD
- Sets ANIMATE[0x100][CHUNKS]
- Kicked from party, retains inventory, sets all color indexes to 72
128 ⟶ Exploding freezing death
- Sets STATE_EXPLODING_DEATH, STATE_DEAD
- Sets ANIMATE[0x100][CHUNKS]
- Kicked from party, retains inventory, sets all color indexes to 71
256 ⟶ Electrified death
- Sets STATE_FLAME_DEATH, STATE_DEAD
- Character Tint Solid, character color ~[0x00404040] (Darkens avatar)
- Kicked from party, drops inventory
512 ⟶ Disintegration death
- Sets STATE_EXPLODING_DEATH, STATE_DEAD
- Sets ANIMATE[0x100][CHUNKS]
- Kicked from party, retains inventory, sets all color indexes to 72
1024 ⟶ Destruction (in IWD2)
- Sets STATE_EXPLODING_DEATH (0x00000100), STATE_DEAD (0x00000800)
- Sets ANIMATE[0x230][EXPLODING_TORSO]
- Plays sound ("GORE.WAV")/("GORE2.WAV")
- Kicked from party, retains inventory, sets all color indexes to 70
Other
- Removes all death states, but does not restore HP
- Drops inventory
Any ⟶ Removes death states that they do not set (e.g, a normal Death will remove STATE_FROZEN_DEATH).

#14 (0xE) Graphics: Defrost Variants: PST
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Removes STATE_FROZEN_DEATH from the targeted creatures and restores them to 1 HP. Does not affect creatures without STATE_FROZEN_DEATH.

#15 (0xF) Stat: Dexterity Modifier Variants: IWD1 IWD2 PST
Parameter #1: Statistic Modifier
Parameter #2: Type

Description:

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

0 ⟶ Cumulative Modifier: Dexterity = Dexterity + 'Statistic Modifier' value
1 ⟶ Flat Value Modifier: Dexterity = 'Statistic Modifier' value
2 ⟶ Percentage Modifier: Dexterity = (Dexterity * 'Statistic Modifier' value) / 100
3 ⟶ Cat's Grace (EE only)

Statistic Modifier can be positive or negative.

The effect modifies DEX.

Info: All games but EEs:

With a Timing Modes of Permanent or Delayed, if Type is 0 and Statistic Modifier is positive, the statistic will alter and remain shown in white text, and a message 'Dexterity raised permanently' will be shown.
With a Timing Modes of Permanent or Delayed, if Type is 1 or 2, or Statistic Modifier is negative, the statistic will alter and remain shown in white text, though no message is shown.
With all other Timing Modes, the statistic will alter and be shown in red text.

On EEs:

There's no feedback message about stat being raised permanently in the EE's – it must be done separately with opcode #139.
The opcode itself provides no coloring anymore (it's been externalized through "UI.menu")
- An effective value > base value ⟶ green.
- An effective value < base value ⟶ red.
- An effective value = base value ⟶ white/default.

Info: When Type=3:

Statistic Modifier is unused: it uses the value listed in CLSSPLAB.2da for the creature's base class, or defaults to 1 if the file isn't present (it only exists by default in IWDEE).
A single instance of this opcode (using Type=3) cannot raise Dexterity above 20 (hardcoded), but multiple instances of it can.
- This is because it only checks the limit against the creature's base score, not its effective score.
Like the other modes, applying the effect with Timing Mode 1 will affect the creature's base stat, leaving no removable effect.
Once applied to a creature, Statistic Modifier will store the exact DEX increase granted (only useful for lookup/editing through EEkeeper/NI).
When you apply this effect in an External EFF, (via op177 / op283):
- Parameter1 in the EFF will determine the exact Dexterity increase (so it must be set manually, and ignores any limit).

Important: With Timing Modes 1/4/7, the creature's base Dexterity is altered, leaving behind no removable effect.

Info: Final values are capped to the bound range (0,25) in game (40 in IWD2).

#16 (0x10) State: Haste Variants: IWD1
Parameter #1: Irrelevant
Parameter #2: Type

Description:

Applies the Haste effect, in the style specified by the Type value.
Known values for Type are:

0 ⟶ Normal Haste – double the movement rate and grants an additional Attack Per Round (APR), rounded down (capped at 6)
1 ⟶ Improved Haste – double the movement rate and doubles APR (capped at 10)
2 ⟶ Weak Haste – Speed haste without attack bonuses, round APR up (capped at 5)

All of them set STATE_HASTED. Improved/Weak function by setting an additional STAT value, which modifies the behavior of STATE_HASTED:

The Normal and Improved haste types grant a -2 initiative (Weapon Speed) bonus. All types:

grant portrait icons (Haste / Improved Haste)
increase the creature's animation speed and the animation speed of opcode 140 effects
halve the creature's round timer used by attacks, modal abilities and "Auto-Pause: End of Round"
increase frequency of application of poison, disease, regeneration, Cast on Condition and Use EFF File (at Frequency), but not below 1s

Info: This effect will cancel out the slow opcode.

Warning: BG1 only supports haste type 0.

This opcode will set the STATE_HASTED flag and nothing else when applied with Timing Mode 1, and cannot be removed within the game by any means, only suppressed by Slow.
This only works when applying Normal/Improved haste (there’s no difference, since the STAT for Improved haste doesn’t get set this way), Weak haste does not do anything with Timing Mode 1.

#17 (0x11) HP: Current HP Modifier Variants: IWD2 BG1
Parameter #1: Statistic Modifier
Parameter #2: Type

Description:

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

0 ⟶ Cumulative Modifier: HP = HP + 'Statistic Modifier' value
1 ⟶ Flat Value Modifier: HP = 'Statistic Modifier' value
2 ⟶ Percentage Modifier: HP = (HP * 'Statistic Modifier' value) / 100

Statistic Modifier can be positive or negative.

Note: If Statistic Modifier and the Dice values are both non-zero, the total HP change is: 'Statistic Modifier' + Dice value.

The upper word of the Type field can further control the style.
Known values for the upper word of Type are:

BIT0 ⟶ Raise dead
BIT1 ⟶ Remove all effects with a limited Timing Mode (not equipped(2) or permanent(9)), but also any ITM in the Magical Weapon Slot.

Important: Unlike opcode #12, this opcode does not apply any death effect (opcode #13) to the creature if it reduces their hit points to zero or less. The creature will remain in a bugged state (no HP but not dead) until they take further damage, or the game is saved & reloaded, at which point they will die properly.

#18 (0x12) HP: Maximum HP Modifier
Parameter #1: Statistic Modifier
Parameter #2: Type
Special: Mode

Description:

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

0 ⟶ Cumulative Modifier: HP = HP + 'Statistic Modifier' value (affects current and max HP)
1 ⟶ Flat Value Modifier: HP = 'Statistic Modifier' value (affects current and max HP)
2 ⟶ Percentage Modifier: HP = (HP * 'Statistic Modifier' value) / 100 (affects current and max HP)
3 ⟶ As 0 (does not affect current HP)
4 ⟶ As 1 (does not affect current HP)
5 ⟶ As 2 (does not affect current HP)
6 ⟶ Non-cumulative Modifier: HP = HP + 'Statistic Modifier' value (affects current and max HP) (EE only)

Statistic Modifier can be positive or negative.

Known values for Mode are:

0 ⟶ Normal: Effect functions as dictated by the Type field.
1 ⟶ Do not update current HP.
- This value is set automatically once the effect has been initially processed on a creature.
- For normal operation, the special field MUST be zero.

Info: To differentiate non-cumulative HP gain from other forms of HP gain, Type is set internally to 6. As mentioned here, multiple effects of Type=6 can be carried by the creature at the same time and only the largest value is used when calculating extra HP. Hence the term “noncumulative coexisting”. This functionality doesn’t interact with other forms (Type != 6) of HP gain, and cumulative HP drain doesn’t use Type=6.

Note: For non-permanent timing modes of Type 2 or 5 use the base maximum HP value, and therefore override other Type 2 or 5 modifiers.

Note: If Statistic Modifier and the Dice values are both non-zero, the total HP change is: 'Statistic Modifier' + Dice value.

Note:

Maximum HP cannot be reduced below a creature's level/HD (average level rounded up for multiclasses).
It is still able to reduce current HP below the creature's level/HD, and has the same bugged death as opcode #17 if it reduces a creature to zero or less HP.

#19 (0x13) Stat: Intelligence Modifier Variants: IWD1
Parameter #1: Statistic Modifier
Parameter #2: Type

Description:

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

0 ⟶ Cumulative Modifier: Intelligence = Intelligence + 'Statistic Modifier' value
1 ⟶ Flat Value Modifier: Intelligence = 'Statistic Modifier' value
2 ⟶ Percentage Modifier: Intelligence = (Intelligence * 'Statistic Modifier' value) / 100

Statistic Modifier can be positive or negative.

The effect modifies INT.

Info: All games but EEs:

With a Timing Modes of Permanent or Delayed, if Type is 0 and Statistic Modifier is positive, the statistic will alter and remain shown in white text, and a message 'Intelligence raised permanently' will be shown.
With a Timing Modes of Permanent or Delayed, if Type is 1 or 2, or Statistic Modifier is negative, the statistic will alter and remain shown in white text, though no message is shown.
With all other Timing Modes, the statistic will alter and be shown in red text.

On EEs:

There's no feedback message about stat being raised permanently in the EE's – it must be done separately with opcode #139.
The opcode itself provides no coloring anymore (it's been externalized through "UI.menu")
- An effective value > base value ⟶ green.
- An effective value < base value ⟶ red.
- An effective value = base value ⟶ white/default.

Important: With Timing Modes 1/4/7, the creature's base Intelligence is altered, leaving behind no removable effect.

Info: Final values are capped to the bound range (0,25) in game (40 in IWD2).

#20 (0x14) State: Invisibility Variants: BG1 IWD1 IWD2 PST
Parameter #1: Irrelevant
Parameter #2: Type

Description:

Applies the invisibility effect, in the style specified by the Type value.

Known values for Type are:

0 ⟶ Normal Invisibility
- Grants a +4 bonus to melee attacks only.
- Applying Normal Invisibility with Timing Modes other than 1/4/7 in an external EFF through opcode #183 will NOT terminate early due to hostile/aggressive action (similar to the constant invisibility provided by Mislead). Applying the same through opcode #177 or opcode #283 DOES terminate due to hostile/aggressive action as normal.
- Applying Normal Invisibility with Timing Modes 1/4/7 will set the creature's base state STATE_INVISIBLE, while still leaving behind a removable (but irrelevant) effect. This state is not cleared on death, but it is still terminated by any hostile/aggressive action that would normally terminate invisibility.
1 ⟶ Improved Invisibility
- Affected creature stays invisible after attack.
- Does not provide saving throw bonuses outside EEs, where it provides a bonus of 4 to all.
- Lingers after the duration is spent and act as permanent if used as a 'While Equipped' effect.
- Applying Improved Invisibility will cause the effect to be duplicated, with the duplicate using Normal invisibility. There's no reason to apply both Normal and Improved invisibility in the same spell/item (unless you want them to have different probabilities/hd limits).
- Applying Improved Invisibility with Timing Modes 1/4/7 will set the creature's base state STATE_IMPROVEDINVISIBILITY, and because it duplicates itself as Normal invisibility, STATE_INVISIBLE as well, while still leaving behind a removable (but irrelevant) effect for each. These states are not cleared on death.
- The effects that remain when setting the base STATEs are irrelevant, at least in-game, because everything that can remove the STATEs will also remove the effect. The STATEs can however be removed separately through NI or EEkeeper, at which point the effect will once again reapply its STATE immediately upon loading the game.
2 ⟶ Weak Invisibility (EE only)
- It's the same type of invisibility as Improved Invisibility after you take a hostile action and reveal yourself.
- Applying "Weak" Invisibility with Timing Modes 1/4/7 will function no differently than Timing Mode 0, aside from having no natural expiration timer.
- Applying "Weak" Invisibility is otherwise the same as Improved Invisibility, except it doesn't duplicate itself with a Normal version, which is why it doesn't quality for backstabs.

Info: Any attack a character makes while invisible will ignore the target’s AC dexterity bonus (see dexmod.2da)

To be exact, the attack must follow these rules:

Attacker must have a backstab multiplier of 2 or higher (see backstab.2da)
Attacker must be STATE_INVISIBLE
Attacker's weapon must not be RANGED

Class / Kit doesn’t matter, sneakatt.2da doesn’t matter (even though the backstab multiplier isn’t used to calculate damage under “Game Option: 3E Sneak Attack”, the creature still has its multiplier calculated / assigned), weapon backstab suitability doesn’t matter.

In the following example:

Attacking character THAC0 = 17
Attacked character AC = 0, (dexterity contributing -4 bonus)

The thief's attack only requires a total roll of 13 to hit, even though a roll of 17 is required normally:

However, this mechanic isn't implemented properly...

If the attacked character has a penalty to AC due to dexterity, they will be harder to hit while being attacked under the above conditions.
In the following example:

Attacking character THAC0 = 17
Attacked character AC = 9, (dexterity contributing +5 penalty)

The thief's attack should only require a total roll of 8 to hit, though a roll of 13 is now required:

Note: The “Stealth” modal ability of Thieves/Rangers/Monks applies this effect with the following values:

Parameter1 = 1 (unknown if any purpose)
Parameter2 = 0
Duration = 20

Note: Creatures attacking an invisible creature suffer a -4 penalty to hit, unless they are affected by opcode #193. Moreover, you cannot target an improved/weak invisible creature with spells unless you’re affected by opcode #193 or the spell can target invisible creatures.

Note: This opcode itself just sets or maintains (with a duration) the relevant STATEs. Everything else is a feature of STATE_INVISIBLE and/or STATE_IMPROVEDINVISIBILITY.

#21 (0x15) Stat: Lore Modifier Variants: IWD2
Parameter #1: Statistic Modifier
Parameter #2: Type

Description:

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

0 ⟶ Cumulative Modifier: Lore = Lore + 'Statistic Modifier' value
1 ⟶ Flat Value Modifier: Lore = 'Statistic Modifier' value
2 ⟶ Percentage Modifier: Lore = (Lore * 'Statistic Modifier' value) / 100

Statistic Modifier can be positive or negative.

The effect modifies LORE.

Warning: This effect does not work with Timing Mode 1.

#22 (0x16) Stat: Cumulative Luck Bonus Variants: IWD2
Parameter #1: Statistic Modifier
Parameter #2: Type

Description:

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field. Luck affects the minimum damage caused by a weapon (up to the normal maximum damage of the weapon) and the attack roll modifier (up to a maximum of 20, excluding natural attack roll modifiers, e.g. high STR, invisibility etc) by Statistic Modifier amount. Statistic Modifier also affects the damge rolls of opponents (in feature blocks, not extension headers). The effect does not set STATE_LUCK.
Known values for Type are:

0 ⟶ Cumulative Modifier: Luck = Luck + 'Statistic Modifier' value
1 ⟶ Flat Value Modifier: Luck = 'Statistic Modifier' value
2 ⟶ Percentage Modifier: Luck = (Luck * 'Statistic Modifier' value) / 100

Info: Effects of Luck:

Modifies a creature's weapon damage die rolls (up/down to its maximum/minimum).
Modifies a creatures's attack roll [1d20] (up/down to its maximum/minimum).
Modifies non-weapon damage die rolls dealt to the creature (up/down to its maximum/minimum).
Modifies a creatures's initiative roll [1d6 - 4] for weapon attacks (up/down to its maximum/minimum). See opcode #190 for further details about weapon/attack speed.
Modifies a creatures's initiative roll [1d8 - 1] for movement (up/down to its maximum/minimum).
Modifies a creatures's skill roll [1d100] for Hiding in Shadows (up/down to its maximum/minimum).
Modifies a creatures's skill roll [1d100] for Set Traps (up/down to its maximum/minimum).
Modifies a creatures's skill roll [1d10] for Open Locks (up/down to its maximum/minimum).
Modifies a creatures's skill roll [1d10] for Bash Doors (up/down to its maximum/minimum).
Modifies a creatures's skill roll [1d10] for Disarm Trap (up/down to its maximum/minimum).
Modifies the chance for a Mirror Image to be struck, chance = ('number of images' + 'Statistic Modifier') / ('number of images' + 1).

Info: Here’s more info about initiative roll for movement:

Apparently, there is intentionally a random wait time between when a creature attempts to move to another creature, and when they will actually start pathing. Luck helps with this...
Wait Time = 0, when roll = 0
Wait Time = (8 - roll), when roll != 0
The natural roll range is [0,7], but like many other rolls Luck alters this slightly. For every point in Luck the highest bound of the roll is converted into the lower bound.
So with 1 Luck the roll becomes [0,6], with 0 having a probability of 25% instead of 12.5%. Negative luck works the same, but in reverse.
1 is the worst roll you can get, yet it is neither of the extremes. So, -1 Luck is bad because it prevents you from bypassing the wait time, (rolling a 0), but if Luck must be negative, the lower the better.
- Luck = "-1": Worst roll possible is a 1, you will be waiting for 7 AI updates (or, if you prefer, ⁷⁄₁₅ths of a second).
- Luck = "-7": Worst roll possible is a 7, you will be waiting for 1 AI update (or, if you prefer, ¹⁄₁₅th of a second)!!
Positive Luck will always increase the likelihood of instantaneous pathing.
Note that this wait time is only applied to creature-to-creature pathing, and never to on-the-ground destinations.
Also, every creature rolls for their own delay when they go to target a creature.

#23 (0x17) Stat: Morale Modifier Variants: BG2
Parameter #1: Statistic Modifier
Parameter #2: Type
Special: Mode

Description:

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

0 ⟶ Cumulative Modifier: Morale = Morale + 'Statistic Modifier' value
1 ⟶ Flat Value Modifier: Morale = 'Statistic Modifier' value
2 ⟶ Percentage Modifier: Morale = (Morale * 'Statistic Modifier' value) / 100

Statistic Modifier can be positive or negative.

At least in EEs, known values for Mode are:

0 ⟶ BG2 mode – It's hardcoded to fill the following values:
- Statistic Modifier = 10
- Type = 1
- m_done = 1 (internal field that immediately removes the effect from creature, no matter duration)
- In addition, it checks if the creature is berserking, and if it is, it returns without doing anything.
1 ⟶ BG1 mode – Default (functions as expected)

Note: Any Morale-based effect (i.e. Panic) may be added or removed by this effect.

#24 (0x18) State: Horror Variants: IWD1
Parameter #1: Irrelevant
Parameter #2: Type

Description:

Applies the horror effect to the targeted creature(s) in the style specified by the Type field, which is suspected to be an EE extension. It sets the STATE_PANIC state.
Known values for Type are:

0 ⟶ Default
Non-zero ⟶ Bypass opcode #101 (Immunity to effect)

#25 (0x19) State: Poison Variants: BG1 IWD1 IWD2 PST BG2
Parameter #1: Amount_1
Parameter #2: Type
Parameter #3: Amount_2
Parameter #4: Frequency Multiplier
Special: Icon

Description:

Damages the target by a certain amount, in the style specified by the Type field. It sets the STATE_POISONED state.
Known values for Type are:

0 ⟶ Inflict 1 HP per second
- Amount_2 and Frequency Multiplier are ignored – Amount_1 needs to be non-zero
1 ⟶ Inflict 1 HP per second
- for best results, leave Amount_2 and Frequency Multiplier at 0, Amount_1 between 1 and 101
2 ⟶ Deal Amount_1 damage every Frequency Multiplier second(s)
3 ⟶ Deal one damage every 'Amount_1' * 'Frequency Multiplier' second(s)
4 ⟶ Deal Amount_2 damage every 'Amount_1' * 'Frequency Multiplier' second(s) – This is the only one that must be in external EFF files
5+ ⟶ Crash

Icon defines the index from STATDESC.2DA for custom portrait icons. Default value is Poisoned.

Important: The Damage Amount parameters should be set to a positive value.

Info: If Frequency Multiplier = 0, its value is treated as 1. This is the default value for SPL/ITM effects.

Note: When the effect is NOT attached through opcode #177, Frequency Multiplier will be replaced when using opcode #329 (Slow Poison) – not necessarily “slow” though, as it can increase or decrease the frequency.

Note: When the Type field is 1:

if the Frequency Multiplier field is non-zero, damage is always dealt.
if the Amount_1 field is less than 256, damage is dealt while HP >= 100 / 'Amount_1'.

#26 (0x1A) Item: Remove Curse Variants: PST
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Removes Cursed items in addition to all opcode #283 effects from the targeted creature(s).

#27 (0x1B) Stat: Acid Resistance Modifier Variants: IWD2
Parameter #1: Statistic Modifier
Parameter #2: Type

Description:

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

0 ⟶ Cumulative Modifier: Resistance = Resistance + 'Statistic Modifier' value
1 ⟶ Flat Value Modifier: Resistance = 'Statistic Modifier' value
2 ⟶ Percentage Modifier: Resistance = (Resistance * 'Statistic Modifier' value) / 100

Statistic Modifier can be positive or negative.

The effect modifies RESISTACID.

#28 (0x1C) Stat: Cold Resistance Modifier Variants: IWD2
Parameter #1: Statistic Modifier
Parameter #2: Type

Description:

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

0 ⟶ Cumulative Modifier: Resistance = Resistance + 'Statistic Modifier' value
1 ⟶ Flat Value Modifier: Resistance = 'Statistic Modifier' value
2 ⟶ Percentage Modifier: Resistance = (Resistance * 'Statistic Modifier' value) / 100

Statistic Modifier can be positive or negative.

The effect modifies RESISTCOLD.

#29 (0x1D) Stat: Electricity Resistance Modifier Variants: IWD2
Parameter #1: Statistic Modifier
Parameter #2: Type

Description:

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

0 ⟶ Cumulative Modifier: Resistance = Resistance + 'Statistic Modifier' value
1 ⟶ Flat Value Modifier: Resistance = 'Statistic Modifier' value
2 ⟶ Percentage Modifier: Resistance = (Resistance * 'Statistic Modifier' value) / 100

Statistic Modifier can be positive or negative.

The effect modifies RESISTELECTRICITY.

#30 (0x1E) Stat: Fire Resistance Modifier Variants: IWD2
Parameter #1: Statistic Modifier
Parameter #2: Type

Description:

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

0 ⟶ Cumulative Modifier: Resistance = Resistance + 'Statistic Modifier' value
1 ⟶ Flat Value Modifier: Resistance = 'Statistic Modifier' value
2 ⟶ Percentage Modifier: Resistance = (Resistance * 'Statistic Modifier' value) / 100

Statistic Modifier can be positive or negative.

The effect modifies RESISTFIRE.

#31 (0x1F) Stat: Magic Damage Resistance Modifier Variants: BG1
Parameter #1: Statistic Modifier
Parameter #2: Type

Description:

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

0 ⟶ Cumulative Modifier: Resistance = Resistance + 'Statistic Modifier' value
1 ⟶ Flat Value Modifier: Resistance = 'Statistic Modifier' value
2 ⟶ Percentage Modifier: Resistance = (Resistance * 'Statistic Modifier' value) / 100

Statistic Modifier can be positive or negative.

The effect modifies MAGICDAMAGERESISTANCE.

#32 (0x20) Cure: Death (Raise Dead) Variants: IWD2
Parameter #1: Irrelevant
Parameter #2: Restore creature animation?

Description:

Raises the targeted creature(s) from the dead.
Known values for Restore creature animation? are:

0 ⟶ No
1 ⟶ Yes

This effect ignores durations attributed to it.

Info: The new animation is selected just as it would be at Character Generation.
Base Animation = 0x6000

+ Class:
- 0x0000 (Cleric/Druid/Shaman/Default)
- 0x0100 (Fighter/Paladin/Ranger)
- 0x0200 (Mage/Sorcerer)
- 0x0300 (Thief/Bard)
- 0x0500 (Monk)
- Mutliclasses prioritize (Warrior > Priest > Rogue > Wizard)
+ Gender:
- 0x0000 (Male/Default)
- 0x0010 (Female)
+ Race:
- 0x0000 (Human/Default)
- 0x0001 (Elf/Half-Elf/Tiefling)
- 0x0002 (Dwarf)
- 0x0003 (Halfling)
- 0x0004 (Gnome)
- 0x0005 (Halforc)

Note:

This opcode will only restore life to creatures with STATE_DEAD. Frozen and Petrified creatures do not qualify until after they shatter (at which point you can no longer target them outside of scripts, so it doesn't really matter).
The animation reset is not dependent on the target's death state.

Info: The presence of this opcode in any of a spell’s ability headers will force any Wild Surge of that spell to use the “Cast Normally” result.

#33 (0x21) Stat: Save vs. Death Modifier Variants: IWD2
Parameter #1: Statistic Modifier
Parameter #2: Type

Description:

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

0 ⟶ Cumulative Modifier: Save = Save + 'Statistic Modifier' value
1 ⟶ Flat Value Modifier: Save = 'Statistic Modifier' value
2 ⟶ Percentage Modifier: Save = (Save * 'Statistic Modifier' value) / 100
3 ⟶ Increment Instantly: Save = Save + 'Statistic Modifier' value (EE only)

Statistic Modifier can be positive or negative.

The effect modifies SAVEVSDEATH.

Info: When Type = 3, this opcode processes before saving throws are checked for effects proceeding it in the same effect stack; when Type = 0, it processes after.

#34 (0x22) Stat: Save vs. Wands Modifier Variants: IWD2
Parameter #1: Statistic Modifier
Parameter #2: Type

Description:

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

0 ⟶ Cumulative Modifier: Save = Save + 'Statistic Modifier' value
1 ⟶ Flat Value Modifier: Save = 'Statistic Modifier' value
2 ⟶ Percentage Modifier: Save = (Save * 'Statistic Modifier' value) / 100
3 ⟶ Increment Instantly: Save = Save + 'Statistic Modifier' value (EE only)

Statistic Modifier can be positive or negative.

The effect modifies SAVEVSWANDS.

Info: When Type = 3, this opcode processes before saving throws are checked for effects proceeding it in the same effect stack; when Type = 0, it processes after.

#35 (0x23) Stat: Save vs. Petrification/Polymorph Modifier Variants: IWD2
Parameter #1: Statistic Modifier
Parameter #2: Type

Description:

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

0 ⟶ Cumulative Modifier: Save = Save + 'Statistic Modifier' value
1 ⟶ Flat Value Modifier: Save = 'Statistic Modifier' value
2 ⟶ Percentage Modifier: Save = (Save * 'Statistic Modifier' value) / 100
3 ⟶ Increment Instantly: Save = Save + 'Statistic Modifier' value (EE only)

Statistic Modifier can be positive or negative.

The effect modifies SAVEVSPOLY.

Info: When Type = 3, this opcode processes before saving throws are checked for effects proceeding it in the same effect stack; when Type = 0, it processes after.

#36 (0x24) Stat: Save vs. Breath Weapons Modifier Variants: IWD2
Parameter #1: Statistic Modifier
Parameter #2: Type

Description:

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

0 ⟶ Cumulative Modifier: Save = Save + 'Statistic Modifier' value
1 ⟶ Flat Value Modifier: Save = 'Statistic Modifier' value
2 ⟶ Percentage Modifier: Save = (Save * 'Statistic Modifier' value) / 100
3 ⟶ Increment Instantly: Save = Save + 'Statistic Modifier' value (EE only)

Statistic Modifier can be positive or negative.

The effect modifies SAVEVSBREATH.

Info: When Type = 3, this opcode processes before saving throws are checked for effects proceeding it in the same effect stack; when Type = 0, it processes after.

#37 (0x25) Stat: Save vs. Spells Modifier Variants: IWD2
Parameter #1: Statistic Modifier
Parameter #2: Type

Description:

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

0 ⟶ Cumulative Modifier: Save = Save + 'Statistic Modifier' value
1 ⟶ Flat Value Modifier: Save = 'Statistic Modifier' value
2 ⟶ Percentage Modifier: Save = (Save * 'Statistic Modifier' value) / 100
3 ⟶ Increment Instantly: Save = Save + 'Statistic Modifier' value (EE only)

Statistic Modifier can be positive or negative.

The effect modifies SAVEVSSPELL.

Info: When Type = 3, this opcode processes before saving throws are checked for effects proceeding it in the same effect stack; when Type = 0, it processes after.

#38 (0x26) State: Silence
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Applies the silence effect to the targeted creature(s). Sets STATE_SILENCED to true.
A silenced creature cannot cast spells / use special abilities (unless flagged as Castable when silenced), bard song or initiate dialog.
The engine is hard-coded to allow these spells to be cast by a silenced creature:

"SPWI219" (Vocalize)
"SPIN649" (Teleport to Pocket Plane) in BG2/BGEE

#39 (0x27) State: Unconsciousness Variants: IWD2 PST
Parameter #1: Irrelevant
Parameter #2: Wake on Damage?
Special: Icon

Description:

Applies the unconsciousness effect to the targeted creature(s).
Known values for Wake on Damage? are (only in EEs):

0 ⟶ Yes
1 ⟶ No

Icon defines the index from STATDESC.2DA for custom portrait icons (EE only). Default value is Sleep. If it is set, also spell state PRONE will be set. Otherwise the creature will be moved to the backlist and become untargettable by most scripts.

This opcode sets the STATE_SLEEPING and STATE_HELPLESS flag bits.

Note: In case of Timing Modes 1/4/7 the bits cannot be removed in-game.
Moreover, the STATE_SLEEPING works as the Wake on Hit option. It’s just not usable because of the unremovable STATE_HELPLESS.

Note: Immunity to this opcode does not prevent unconsciousness from stunning damage done by normal fists.

#40 (0x28) State: Slow
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Applies the slow effect to the targeted creature(s). It automatically grants the Slow portrait icon.

Info: This effect will cancel out the haste opcode.

Note: This effect doubles the Casting Time of all spells. Not verified for IWD2.

Warning: This opcode will set the STATE_SLOWED flag and nothing else when applied with Timing Mode 1, and cannot be removed within the game by any means, only suppressed by Haste.

#41 (0x29) Graphics: Sparkle Variants: BG1 IWD1 IWD2 PST PSTEE
Parameter #1: Colour
Parameter #2: Type

Description:

Displays the sparkle effect specified by the Type field, in the colour specified by the Colour field. The colour field may be connected to SPRKLCLR.2DA.
Known values for Colour are:

0 ⟶ Crash
1 ⟶ Black
2 ⟶ Blue
3 ⟶ Chromatic
4 ⟶ Gold
5 ⟶ Green
6 ⟶ Purple
7 ⟶ Red
8 ⟶ White
9 ⟶ Ice
10 ⟶ Stone
11 ⟶ Magenta
12 ⟶ Orange
13+ ⟶ Crash

Known values for Type are:

1 ⟶ Explosion
- It is always instantaneous.
2 ⟶ No effect?
3 ⟶ Sparkle Shower
- Will use the specified duration, but is not saved (lost upon reload).

Info: Both of these params use only the lower 16 bits (upper bits might have other function).

#42 (0x2A) Spell: Wizard Spell Slots Modifier Variants: BG1
Parameter #1: Slot Amount Modifier
Parameter #2: Spell Level

Description:

Alters the number of wizard spell slots available to the targeted creature(s), as specified by the Slot Amount Modifier field, at the level specified by the Spell Level field. Wizard spells are used by Bards, Sorcerers and Wizards in IWD2.

Known values for Spell Level are:

0 ⟶ Double spells
- The amount of spell slots is doubled for the level specified by the Slot Amount Modifier value and all levels below
BIT0 ⟶ Level 1
BIT1 ⟶ Level 2
BIT2 ⟶ Level 3
BIT3 ⟶ Level 4
BIT4 ⟶ Level 5
BIT5 ⟶ Level 6
BIT6 ⟶ Level 7
BIT7 ⟶ Level 8
BIT8 ⟶ Level 9
BIT9 ⟶ Double spells
- The amount of spell slots is doubled exclusively for the level specified by Slot Amount Modifier

The target creature(s) must have at least 1 slot at the selected level to have their slot count changed.

Negative slots start at 65535 (-1), and go from there. Even though the spellbook has room to display only 12 slots at once, the slots are still there and usable.

Slot Amount Modifier can be positive or negative.

Note:

If the number of current spell slots is 1:
- applying a -1 modifier will result in zero current slots and prevent further applications of this opcode from altering spell slots (until this effect terminates or is removed, or the base amount changes).
- applying a -2 modifier instead would bypass zero and result in 65535 (-1). Then applying a +1 modifier would result in zero current slots and a repeat of the above.
Regardless of whether the value can be altered, the effect is still attached to the creature, rather than being discarded entirely. They can still take effect should the creature's base spell slots be altered (such as from leveling up).
Applying multiple effects in increments of -1 will insure that spell slots do not go below zero (and thus will not wrap around to maximum).

#43 (0x2B) Cure: Stone to Flesh
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Removes STATE_STONE_DEATH from the targeted creatures and restores them to 1 HP. Does not affect creatures without STATE_STONE_DEATH.

Important: Both parameters should be 0 (zero).

Note:

Will not remove a currently delayed (untriggered) Petrification effect.
Nor will it remove the False Petrification mode of opcode #109.

#44 (0x2C) Stat: Strength Modifier Variants: IWD1 IWD2 PST
Parameter #1: Statistic Modifier
Parameter #2: Type

Description:

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

0 ⟶ Cumulative Modifier: Strength = Strength + 'Statistic Modifier' value
1 ⟶ Flat Value Modifier: Strength = 'Statistic Modifier' value
2 ⟶ Percentage Modifier: Strength = (Strength * 'Statistic Modifier' value) / 100
3 ⟶ Bull's Strength (EE only)

Statistic Modifier can be positive or negative.

The effect modifies STR.

Info: All games but EEs:

With a Timing Modes of Permanent or Delayed, if Type is 0 and Statistic Modifier is positive, the statistic will alter and remain shown in white text, and a message 'Strength raised permanently' will be shown.
With a Timing Modes of Permanent or Delayed, if Type is 1 or 2, or Statistic Modifier is negative, the statistic will alter and remain shown in white text, though no message is shown.
With all other Timing Modes, the statistic will alter and be shown in red text.

On EEs:

There's no feedback message about stat being raised permanently in the EE's – it must be done separately with opcode #139.
The opcode itself provides no coloring anymore (it's been externalized through "UI.menu")
- An effective value > base value ⟶ green.
- An effective value < base value ⟶ red.
- An effective value = base value ⟶ white/default.

Info: When Type=3:

Statistic Modifier is unused: it uses the value listed in CLSSPLAB.2da for the creature's base class, or defaults to 1 if the file isn't present (it only exists by default in IWDEE).
A single instance of this opcode (using Type=3) cannot raise Strength above 18 (hardcoded), but multiple instances of it can.
- This is because it only checks the limit against the creature's base score, not its effective score.
  - A Cleric with 12 base STR could gain up to +6 from the effect each time. Two max roll effects would take them to 24 STR.
  - A Cleric with 16 base STR could only gain up to +2 from the effect each time.
- Warrior classes also gain a % Strength score, their maximum is actually 18/100. Every /10 is counted as +1 from their die roll. Warriors will not exceed 18/100 though, as once they hit 18, the remaining dice roll converts to a % increase, preventing their score from exceeding 18/100 (18/100 + /10 doesn't convert to 19).
  For instance, if a PALADIN with 17 STR rolls, say, 5, he will end up with 18/40 STR.
Like the other modes, applying the effect with Timing Mode 1 will affect the creature's base stat, leaving no removable effect.
Once applied to a creature, Statistic Modifier will store the exact STR increase granted, while the Special field will store any Exceptional STR increase granted (only useful for lookup/editing through EEkeeper/NI).
When you apply this effect in an External EFF, (via op177 / op283):
- Parameter1 in the EFF will determine the exact Strength increase (so it must be set manually, and ignores any limit).
- If Parameter1 is non-zero, Exceptional STR will still be rolled as normal (and only for appropriate Classes).
  - It will be equal to 10 * (Roll - (18 - Base)), capped (0,100).
- If Parameter1 is zero, no Exceptional STR will be granted.
- The actual increase for Exceptional STR will be stored in the Special field of op177 / op283 (after it's been applied to the creature).
- Basically, it works exactly like Type=0, except that warriors will still gain a random Exceptional STR increase (of course it's only noticeable if their resulting STR is 18).

Important: With Timing Modes 1/4/7, the creature's base Strength is altered, leaving behind no removable effect.

Info: Final values are capped to the bound range (0,25) in game (40 in IWD2).

#45 (0x2D) State: Stun Variants: IWD1
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Stuns the targeted creature(s) and sets HELD to 1. In particular:

Maintains Portrait Icon Stun (EE only).
Immobilizes the creature, limiting it to instantaneous actions (INSTANT.IDS).
Maintains STATE_STUNNED.
- Renders the creature unselectable and disable the Inventory.
Maintains STATE_HELPLESS.
- Renders the creature unselectable and disable the Inventory.
- Causes all attacks against the creature to automatically hit, disabling Critical Hits and misses.

Note: Applied with Timing Modes 1/4/7: will set the creature’s base STATE_STUNNED flag, while still leaving behind a separate removable effect.

Should you remove the effect without removing the state (through means other than opcode #46), the creature will be fully functional, just not controllable by the player (if it was).
By itself, STATE_STUNNED does not disable any scripts or limit which actions the creature may take. It needs its opcode's immobilization effect as well as STATE_HELPLESS to fully work.

#46 (0x2E) Cure: Stun (Unstun) Variants: PST
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Unstuns the targeted creature(s) (opcode #45 and opcode #109). Also removes STATE_STUNNED from the creature.
This effect ignores durations attributed to it.

#47 (0x2F) Cure: Invisibility
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Removes the invisibility effect from the targeted creature(s) if they don't have STATE_NONDETECTION set. Also removes STATE_INVISIBLE and STATE_IMPROVEDINVISIBILITY.
This effect ignores durations attributed to it.

Important: Both parameters should be 0 (zero).

#48 (0x30) Cure: Silence (Vocalize)
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Removes the silence effect and STATE_SILENCED from the targeted creature(s).
This effect ignores durations attributed to it.

#49 (0x31) Stat: Wisdom Modifier Variants: IWD1 PST
Parameter #1: Statistic Modifier
Parameter #2: Type

Description:

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

0 ⟶ Cumulative Modifier: Wisdom = Wisdom + 'Statistic Modifier' value
1 ⟶ Flat Value Modifier: Wisdom = 'Statistic Modifier' value
2 ⟶ Percentage Modifier: Wisdom = (Wisdom * 'Statistic Modifier' value) / 100

Statistic Modifier can be positive or negative.

The effect modifies WIS.

Info: All games but EEs:

With a Timing Modes of Permanent or Delayed, if Type is 0 and Statistic Modifier is positive, the statistic will alter and remain shown in white text, and a message 'Wisdom raised permanently' will be shown.
With a Timing Modes of Permanent or Delayed, if Type is 1 or 2, or Statistic Modifier is negative, the statistic will alter and remain shown in white text, though no message is shown.
With all other Timing Modes, the statistic will alter and be shown in red text.

On EEs:

There's no feedback message about stat being raised permanently in the EE's – it must be done separately with opcode #139.
The opcode itself provides no coloring anymore (it's been externalized through "UI.menu")
- An effective value > base value ⟶ green.
- An effective value < base value ⟶ red.
- An effective value = base value ⟶ white/default.

Important: With Timing Modes 1/4/7, the creature's base Wisdom is altered, leaving behind no removable effect.

Info: Final values are capped to the bound range (0,25) in game (40 in IWD2).

#50 (0x32) Colour: Glow by RGB (Brief) Variants: BG1 IWD1 IWD2 PST
Parameter #1: RGB Colour
Parameter #2: Location and Speed

Description:

The targeted creature(s) entire animation glows the colour specified by the RGB Colour field, at the speed specified by the (3^rd byte of the) Speed field.
The RGB Colour field is handled as follows:

Second byte = Red (0 — 255)
Third byte = Green (0 — 255)
Fourth byte = Blue (0 — 255)

The Location and Speed field is handled as follows:

First byte = Location (not implemented in 2.5)
Third byte = Speed (0 — 255)

A speed of 0 does not pulsate. A speed of 1 is fastest, and a speed of 255 is slowest. The duration of the effect is controlled by the Speed field.
Known values for Location are:

0 — 6: Avatar/Armor
- 00 ⟶ Belt Buckle (on armour) or amulets (on robes) — entire body for some animations
- 01 ⟶ Minor colour
- 02 ⟶ Major colour
- 03 ⟶ Skin colour
- 04 ⟶ Strap colour (on armour) or minor trimming (on robes — the centre strip down a robe and the hem on some robes)
- 05 ⟶ Armor colour (and major trimming on robe — cross trim and cape trim on Robe of Archmagi)
- 06 ⟶ Hair colour
16 — 22: Weapon
- 16 ⟶ Quillons or Crossguard
- 20 ⟶ Grip (usually not visible as it's in the characters hand)
- 21 ⟶ Blade or major portion of weapon
32 — 40: Shield
- 32 ⟶ Shield hub
- 33 ⟶ Shield interior
- 34 ⟶ Shield panelling
- 37 ⟶ Shield rim
48 — 54: Helmet
- 48 ⟶ Helm ornamentation — i.e. wings
- 49 ⟶ Helm ornamentation — i.e. feathers/horsehair
- 50 ⟶ Helm ornamentation — i.e. feathers/horsehair
- 52 ⟶ Helm face
- 53 ⟶ Helm — the main covering
255 ⟶ Whole Body (at least in IWD2 and EEs)

Warning: Other values crash immediately or when opening or manipulating Inventory.
See opcode #7 for further details about this topic.

#51 (0x33) Colour: Strong/Dark by RGB Variants: BG1 IWD1 IWD2
Parameter #1: RGB Colour
Parameter #2: Location

Description:

Alters the colour of the area specified by the Location and Speed field, to the colour specified by the RGB Colour field.
The RGB Colour field is handled as follows:

Second byte = Red (0–255)
Third byte = Green (0–255)
Fourth byte = Blue (0–255)

Known values for Location are:

0 – 6: Avatar/Armor
- 00 ⟶ Belt Buckle (on armour) or amulets (on robes) – entire body for some animations
- 01 ⟶ Minor colour
- 02 ⟶ Major colour
- 03 ⟶ Skin colour
- 04 ⟶ Strap colour (on armour) or minor trimming (on robes – the centre strip down a robe and the hem on some robes)
- 05 ⟶ Armor colour (and major trimming on robe – cross trim and cape trim on Robe of Archmagi)
- 06 ⟶ Hair colour
16 – 22: Weapon
- 16 ⟶ Quillons or Crossguard
- 20 ⟶ Grip (usually not visible as it's in the characters hand)
- 21 ⟶ Blade or major portion of weapon
32 – 40: Shield
- 32 ⟶ Shield hub
- 33 ⟶ Shield interior
- 34 ⟶ Shield panelling
- 37 ⟶ Shield rim
48 – 54: Helmet
- 48 ⟶ Helm ornamentation – i.e. wings
- 49 ⟶ Helm ornamentation – i.e. feathers/horsehair
- 50 ⟶ Helm ornamentation – i.e. feathers/horsehair
- 52 ⟶ Helm face
- 53 ⟶ Helm – the main covering
255 ⟶ Whole Body (at least in IWD2 and EEs)

Warning: Other values crash immediately or when opening or manipulating Inventory.
See opcode #7 for further details about this topic.

#52 (0x34) Colour: Very Bright by RGB Variants: BG1 IWD1 IWD2 PST
Parameter #1: RGB Colour
Parameter #2: Location

Description:

Alters the colour of the area specified by the Location field, to the colour specified by the RGB Colour field.
The RGB Colour field is handled as follows:

Second byte = Red (0–255)
Third byte = Green (0–255)
Fourth byte = Blue (0–255)

Known values for Location are:

0 – 6: Avatar/Armor
- 00 ⟶ Belt Buckle (on armour) or amulets (on robes) – entire body for some animations
- 01 ⟶ Minor colour
- 02 ⟶ Major colour
- 03 ⟶ Skin colour
- 04 ⟶ Strap colour (on armour) or minor trimming (on robes – the centre strip down a robe and the hem on some robes)
- 05 ⟶ Armor colour (and major trimming on robe – cross trim and cape trim on Robe of Archmagi)
- 06 ⟶ Hair colour
16 – 22: Weapon
- 16 ⟶ Quillons or Crossguard
- 20 ⟶ Grip (usually not visible as it's in the characters hand)
- 21 ⟶ Blade or major portion of weapon
32 – 40: Shield
- 32 ⟶ Shield hub
- 33 ⟶ Shield interior
- 34 ⟶ Shield panelling
- 37 ⟶ Shield rim
48 – 54: Helmet
- 48 ⟶ Helm ornamentation – i.e. wings
- 49 ⟶ Helm ornamentation – i.e. feathers/horsehair
- 50 ⟶ Helm ornamentation – i.e. feathers/horsehair
- 52 ⟶ Helm face
- 53 ⟶ Helm – the main covering
255 ⟶ Whole Body (at least in IWD2 and EEs)

Warning: Other values crash immediately or when opening or manipulating Inventory.
See opcode #7 for further details about this topic.

#53 (0x35) Graphics: Animation Change Variants: IWD1 IWD2 PST
Parameter #1: Animation ID
Parameter #2: Type

Description:

Alters the animation of the targeted creature(s) to the animation specified by the Animation ID field, in the style specified by the Type field.
Known values for Animation ID are: (from ANIMATE.IDS – in decimal)
Known values for Type are:

0 ⟶ Change target's animation to Animation ID (Low Priority)
1 ⟶ Change target's animation to Source's Base Animation (Low Priority)
- Normally used targeting oneself to reassert their base animation over previous op53,p2=0 effects.
2 ⟶ Change target's animation to Animation ID (High Priority)
- Has priority over other op53 effects using either p2=0 or p2=1, regardless of stacking order.

Important: Applied with Timing Modes 1/4/7, sets the creature's base animation, leaving no removable effect.

#54 (0x36) Stat: THAC0 Modifier Variants: IWD2
Parameter #1: Statistic Modifier
Parameter #2: Type

Description:

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

0 ⟶ Cumulative Modifier: THAC0 = THAC0 + 'Statistic Modifier' value
1 ⟶ Flat Value Modifier: THAC0 = 'Statistic Modifier' value
2 ⟶ Percentage Modifier: THAC0 = (THAC0 * 'Statistic Modifier' value) / 100

Note: This effect adjusts the base stat, rather than modified THAC0.

#55 (0x37) Death: Kill Creature Type Variants: PST
Parameter #1: IDS Entry
Parameter #2: IDS File

Description:

Kills the targeted creature(s) with HD less than those specified by the Dice values, if the target(s) match the IDS mask.
Known values for IDS File are:

2 ⟶ EA.IDS
3 ⟶ GENERAL.IDS
4 ⟶ RACE.IDS
5 ⟶ CLASS.IDS
6 ⟶ SPECIFIC.IDS
7 ⟶ GENDER.IDS
8 ⟶ ALIGN.IDS
9 ⟶ KIT.IDS (EE only)

IDS Entry is a value from the specified IDS file, indicating the specific creature type to affect.

#56 (0x38) Alignment: Invert Variants: PST
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Inverts the alignment of the targeted creature(s).

Important: Both parameters should be 0 (zero).

#57 (0x39) Alignment: Change Variants: PST
Parameter #1: Irrelevant
Parameter #2: Alignment

Description:

Alters the alignment of the targeted creature(s) to the value specified by Alignment.
Known values for Alignment are:

00 ⟶ None
17 ⟶ Lawful Good
18 ⟶ Lawful Neutral
19 ⟶ Lawful Evil
33 ⟶ Neutral Good
34 ⟶ True Neutral
35 ⟶ Neutral Evil
49 ⟶ Chaotic Good
50 ⟶ Chaotic Neutral
51 ⟶ Chaotic Evil

#58 (0x3A) Cure: Dispellable Effects (Dispel Magic) Variants: BG1
Parameter #1: Level
Parameter #2: Dispel Type & Magic Weapon Dispel Type

Description:

Dispels magic from the targeted creature(s). Depending on the value of the Type field, the Level field can be used to set the level of the effect.
The Dispel Type & Magic Weapon Dispel Type field is handled as follows:

First word = Dispel Type
- 0 ⟶ Always dispel
- 1 ⟶ Use Caster Level
- 2 ⟶ Use Level field
Second word = Magic Weapon Dispel Type
- 0 ⟶ Always dispel
  - Will not remove items flagged as undispellable.
- 1 ⟶ Never Dispel
  - Will not remove any Magical Weapon slot item, regardless of undispellable.
- 2 ⟶ Use Caster Level
  - Will not remove items flagged as undispellable.

Info: When Dispel Type = 1 or Dispel Type = 2 (Level-based Dispel):

Base chance is 49%.
- This chance is modified by the relative levels of the dispeller to the caster. Each level below gives a -10% chance, each level above gives a +5% chance.
Maximum is 99% chance to dispel.
There is no minimum threshold for succeeding the dispel check, at 5 levels or more below it will always fail.
Effects with caster levels 1932735279 to 1932735534 (as impractical as they may be), corresponding to levels 0 – 255, effectively use an inverted success/failure rate, due to overflow.

#59 (0x3B) Stat: Stealth Modifier
Parameter #1: Statistic Modifier
Parameter #2: Type

Description:

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

0 ⟶ Cumulative Modifier: Stealth = Stealth + 'Statistic Modifier' value
1 ⟶ Flat Value Modifier: Stealth = 'Statistic Modifier' value
2 ⟶ Percentage Modifier: Stealth = (Stealth * 'Statistic Modifier' value) / 100

Note: In BG2 and EEs, this effect alters the Move Silently skill.

Important: Timing Modes 1/4/7 permanently alter the creature's Move Silently score, leaving no removable effect.

Note: (EE only) When Type = 0 and Timing Mode = 9, it modifies MOVESILENTLYMTPBONUS. The final value for this stat is multiplied by its percentage entry in THIEFSCL.2DA, capped to the range [0,255], before being included in the creature’s Move Silently score.

#60 (0x3C) Stat: Miscast Magic Variants: IWD1 BG1
Parameter #1: Percent Chance
Parameter #2: Type

Description:

The targeted creature(s) will fail to cast the type of spell specified by the Type field, Percent Chance percent of the time.
Known values for Type are:

0 ⟶ Mage Spells
1 ⟶ Cleric Spells
2 ⟶ Innate Abilities
3 ⟶ Mage Spells
4 ⟶ Cleric Spells
5 ⟶ Innate Abilities

This opcode increments SPELLFAILUREMAGE, SPELLFAILUREPRIEST and SPELL_FAILURE_INNATE, each of which is capped 0 — 100.

Type values of 0,1 or 2 display a message — "Spell Failed: casting failure" (on EE games, this string is specified by STRREF_FEEDBACK_SPELLFAILED_CASTFAILURE)

Type values of 3,4 or 5 display a message — "Spell failed due to dead magic" (on EE games, this string is specified by STRREF_FEEDBACK_SPELLFAILED_CASTFAILUREDEAD)

Additionally, it sets DEAD_MAGIC to 1.

Note:

This opcode is cumulative with itself and the Deafness effect.
Spells with Ignore Dead/Wild Magic ignore the spell failure chance from this effect (regardless of using the Dead Magic mode).

#61 (0x3D) Creature RGB color fade Variants: IWD2 BG1
Parameter #1: RGB Colour
Parameter #2: Location and Fade Speed

Description:

Works similar to opcode #8/opcode #9, except:

It always affects the entire creature (not a specific location).
It is always "instantaneous". No effect is attached to the creature, it's all handled by internal mechanics, but it still uses the specified duration. Saving & Reloading will remove the effect.
The creature will instantly be covered by a color overlay which then fades out. The color overlay will not fade back in. It's otherwise similar to opcode #50, where the color overlay fades onto the creature and then fades back out.

The RGB Colour field is handled as follows:

Second byte = Red (0–255)
Third byte = Green (0–255)
Fourth byte = Blue (0–255)

The Location and Fade Speed field is handled as follows:

First byte = Location (unused, it always affects everything. Leave it at 0)
Third byte = Fade Speed (0–255)

A speed of 0 does not pulsate. A speed of 1 is fastest, and a speed of 255 is slowest.

#62 (0x3E) Spell: Priest Spell Slots Modifier Variants: IWD1
Parameter #1: Slot Amount Modifier
Parameter #2: Spell Level

Description:

Alters the number of priest spell slots available to the targeted creature(s), as specified by the Slot Amount Modifier field, at the level specified by the Spell Level field.

Known values for Spell Level are:

0 ⟶ Double spells
- The amount of spell slots is doubled for the level specified by the Slot Amount Modifier value and all levels below
BIT0 ⟶ Level 1
BIT1 ⟶ Level 2
BIT2 ⟶ Level 3
BIT3 ⟶ Level 4
BIT4 ⟶ Level 5
BIT5 ⟶ Level 6
BIT6 ⟶ Level 7
BIT9 ⟶ Double spells
- The amount of spell slots is doubled exclusively for the level specified by Slot Amount Modifier

The target creature(s) must have at least 1 slot at the selected level to have their slot count changed.

Negative slots start at 65535 (-1), and go from there. Even though the spellbook has room to display only 12 slots at once, the slots are still there and usable.

Slot Amount Modifier can be positive or negative.

Note:

If the number of current spell slots is 1:
- applying a -1 modifier will result in zero current slots and prevent further applications of this opcode from altering spell slots (until this effect terminates or is removed, or the base amount changes).
- applying a -2 modifier instead would bypass zero and result in 65535 (-1). Then applying a +1 modifier would result in zero current slots and a repeat of the above.
Regardless of whether the value can be altered, the effect is still attached to the creature, rather than being discarded entirely. They can still take effect should the creature's base spell slots be altered (such as from leveling up).
Applying multiple effects in increments of -1 will insure that spell slots do not go below zero (and thus will not wrap around to maximum).

#63 (0x3F) State: Infravision
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Gives the targeted creature(s) infravision and sets STATE_INFRAVISION.

Important: Both parameters should be 0 (zero).

Info: STATE_INFRAVISION specs:
While a creature with Infravision is currently selected,

all visible creatures with body heat that are currently in a "shadowed" part of the area receive a "warm" (red-shifted) overlay
body heat is determined by a creature's animation (INI file) using detected_by_infravision=1, or by opcode #342 (p1=1 & p2=1)
"shadowed" is determined by each area's Light Map "AR####LM.BMP"
- Some areas have a separate Light Map for "nighttime" hours, "AR####LN.BMP"

#64 (0x40) State: Remove Infravision
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Removes infravision from the targeted creature(s).
This effect ignores durations attributed to it.

Note: This will not remove racial infravision.

Important: Both parameters should be 0 (zero).

#65 (0x41) Overlay: Blur
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Applies the blur effect to the targeted creature(s) and sets STATE_BLUR. Graphical displacement is affected by movement rate.

Important: Both parameters should be 0 (zero).

Note:

STATE_BLUR will maintain the effects of this opcode, once this opcode expires, but only until you save & reload.
If you set STATE_BLUR on a CRE file, it won't do anything by itself.
If you later apply opcode #65 to the creature, once it expires, the blur visual will remain until you save & reload, but will no longer update based on your movement rate (it will remain stuck at whatever it was when the opcode expired).

#66 (0x42) Graphics: Transparency Fade Variants: IWD1 PST
Parameter #1: Fade Amount
Parameter #2: Visual Effect

Description:

Fades the targeted creature(s) by the value in the amount specified by the Fade Amount field in the style specified by the Visual Effect field.
Known values for Fade Amount are:

0 ⟶ Fully visible
...
255 ⟶ Fully transparent

A creature's TRANSLUCENT stat is stored in a single byte (0-255) on the CRE file.
This opcode only reads the first byte (out of four) of Fade Amount, so the value will always be 0-255.

Known values for Visual Effect are:

0 ⟶ Draw instantly
1 ⟶ Fade in
2 ⟶ Fade out

Visual Effect = 0 sets the TRANSLUCENT stat directly, based on the timing mode.
Visual Effect = 1 and Visual Effect = 2 call a hardcoded process that decreases/increases the TRANSLUCENT stat by Fade Amount every tick, until it reaches 0/255.

Note:

Any transparency inherit in the animation (see for instance 7703.INI — SHADOW) will stack with that of the TRANSLUCENT stat.
- It's likely multiplied (so that 50% * 50% = 25%), or something similar, but not additive.
On EE games, If you have the game option "Sprite Outlines" enabled, TRANSLUCENT values 1 - 127 are treated as 0.
- If you also have the game option "Highlight selected sprites" enabled, TRANSLUCENT values 1 - 127 will display correctly, but only while the mouse is over the creature.

#67 (0x43) Summon: Creature Summoning Variants: IWD2 PST
Parameter #1: Irrelevant
Parameter #2: Mode

Description:

Summons a creature, with position and EA based on the Mode field. The Resource key should be set to the filename of the creature to summon.

Known values for Mode are:

Mode	Position	EA
0, 1	effect	align with target creature
3	target creature	align with target creature
4	target creature	CRE file
5	effect	align against target creature
2, else	effect	CRE file

Info: Mode details:

Position:

3, 4 ⟶ summon at target creature's position
else ⟶ summon at effect position

EA:

0, 1, 3 ⟶ align with target creature:

target creature EA ≤ GOODCUTOFF (30) ⟶ summon as ALLY (4)
target creature EA ≥ EVILCUTOFF (200) ⟶ summon as ENEMY (255)
else ⟶ summon as CRE file

5 ⟶ align against target:

target creature EA ≤ GOODCUTOFF (30) ⟶ summon as ENEMY (255)
target creature EA ≥ EVILCUTOFF (200) ⟶ summon as ALLY (4)
else ⟶ summon as CRE file

Bug: Mode = 5 fails to make creatures summoned as ALLY (4) controllable. This is fixed upon reload.

Info:

(EE only) Resource 2 (external EFFs): Animation VVC/BAM file to be played at the summoned creature's location.
Default is a hardcoded VVC using "SPBOOM.BAM" and palette #65. This is generally used as the "portal" animation.
(EE only) Resource 3 (external EFFs): Animation VVC/BAM file to be played at the location of the ability target.
Applies an opcode #271 to the summoned creature based on the duration of the Resource 2 (not exact). Creature will not appear/spawn until this animation finishes.
Applies a delayed opcode #215 with resource = "SPGFLSH1" to the summoned creature, delayed duration = 5 ticks less than the opcode #271.
Applies a delayed opcode #68 to the summoned creature based on effect duration (unless permanent).
When summoned, any temporary changes (such as from equipped items) to the creature's gender are made permanent.

#68 (0x44) Summon: Unsummon Creature
Parameter #1: Text Notification
Parameter #2: Irrelevant

Description:

Unsummons a creature, with feedback controlled by Text Notification.
Known values for Text Notification are:

0 ⟶ No text notification
1 ⟶ Show text notification

Note: At least in BG2 and EEs, the Resource key should be set to the filename of the animation to play when unsummoning the creature, and defaults to "SPGFLSH1" if left empty.

Note:

Has no effect on Party Members.
Moves the targeted creature(s) to area ".ARE" (a non-existant area). This deletes non-global creatures from the game.
Global creatures can still be recovered through scripts actions, such as MoveGlobalObject().

#69 (0x45) Protection: From Detection (Non-Detection)
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Applies the non-detection effect to the targeted creature(s), setting STATE_NONDETECTION while active. This effect is negated by opcode #70. While in the non-detection state, the creature is immune to opcode #47 and opcode #116, though they are affected by effects that remove illusionary protections by school or secondary type.

Important: Timing Modes 1/4/7 will permanently set the creature's STATE_NONDETECTION flag, leaving no removable effect. This flag is not cleared on death.

#70 (0x46) Cure: Non-Detection Variants: IWD2 PST
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Removes opcode #69 and the STATE_NONDETECTION flag from the targeted creature(s).
This effect ignores durations attributed to it.

#71 (0x47) IDS: Sex Change
Parameter #1: Gender Modifier
Parameter #2: Type

Description:

Alters the gender of the targetted creature(s) to the value specified by the Gender Modifier field, in the style specified by the Type value.
Known values for Type are:

0 ⟶ Reverse Gender
1 ⟶ Flat Value Modifier: Gender = 'Statistic Modifier' value (values from GENDER.IDS)

The effect modifies SEX_CHANGED.

Note:

Reverse Gender also switches the second BIT of the lower BYTE of the creature's animation, which (for PC races), will switch between their male/female animations (0x6000 ⟷ 0x6010).
Other races can be setup this way, but do not occupy the necessary animation slots by default.
For instance, VAMPIRE is 0x7F12, VAMPIRE_FEMALE is 0x7F22 (Male should be 0x7F02 and female 0x7F12 for it to work).

#72 (0x48) IDS: Set IDS State Variants: BG1 IWD2 PST
Parameter #1: IDS Entry
Parameter #2: IDS File

Description:

Alters the IDS state of the targeted creature(s) specified by the IDS File field, to the value specified by the IDS Entry field.
Known values for IDS File are:

0 ⟶ EA
1 ⟶ Generic / General
2 ⟶ Race
3 ⟶ Class
4 ⟶ Specific
5 ⟶ Gender
6 ⟶ Align / Alignmen (iwd1, pst)

Important:

Only reliable timing mode is Timing Mode 1 (all others are bugged and can convert to this timing mode under various circumstances).
Timing Modes 1/4/7 will permanently set the creature(s) IDS value, leaving no removable effect.

#73 (0x49) Stat: Extra Damage Modifier Variants: IWD1
Parameter #1: Statistic Modifier
Parameter #2: Modifier Type

Description:

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field. The effect is an additive modifier, like adding +10 damage.
Known values for Type are:

0 ⟶ Cumulative Modifier: Damage = Damage + 'Statistic Modifier' value
1 ⟶ Flat Value Modifier: Damage = 'Statistic Modifier' value
2 ⟶ Percentage Modifier: Damage = (Damage * 'Statistic Modifier' value) / 100

Note: PST treats all Type values above 1 as 1 – it does not support the percentage modifier.

#74 (0x4A) State: Blindness Variants: BG1
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Applies the blindness effect to the targeted creature(s). This sets VISUALRANGE to 2, sets STATE_BLIND to true and incurs a cummulative 10 point base THAC0 penalty (4 on EE games, plus a cumulative 4 point base AC penalty. All of that is unverified in PST). Maintains its own portrait icon Blind.

Important:

Timing Modes 1/4/7 will permanently set the creature's STATE_BLIND flag, leaving no removable effect.
Related: the -4 penalty to AC and THAC0 are apparently tied to the effect, not STATE_BLIND.
- So for instance you will not be able to 100% cure a creature affected by CLERIC_NATURE_BEAUTY — "sppr704.spl" (it applies opcode #74 with timing_mode=1).
  - As a workaround, you might want to stick with a limited timing_mode and set duration to a very high random value.

Note: In the EE’s, the -4 penalties it applies are not cumulative.

#75 (0x4B) Cure: Blindness
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Removes the blindness effect and the STATE_BLIND flag from the targeted creature(s).
This effect ignores durations attributed to it.

Important: Both parameters should be 0 (zero).

#76 (0x4C) State: Feeblemindedness Variants: IWD2
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Applies the feeblemind effect to the targeted creature(s) – creatures are unselectable, immobile and do not respond to combat. Maintains the target's Intelligence to 3 (stacks normally with opcode #19).

Important: A creature's scripts do not run while the creature is feebleminded.

#77 (0x4D) Cure: Feeblemindedness
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Removes the feeblemind effect and the STATE_FEEBLEMINDED flag from the targeted creature(s).
This effect ignores durations attributed to it.

Important: Both parameters should be 0 (zero).

#78 (0x4E) State: Disease Variants: BG1 BG2 IWD1 PST
Parameter #1: Amount
Parameter #2: Type
Parameter #4: Frequency Multiplier
Special: Icon

Description:

Set the Amount parameter as the amount of damage, and the Type parameter as how the disease functions.
Known values for Type are:

0 ⟶ Inflict 1 HP per second
- Frequency Multiplier is ignored – Amount needs to be non-zero)
1 ⟶ Inflict 1 HP per second
- for best results, leave Frequency Multiplier at 0, Amount between 1 and 101
2 ⟶ Deal Amount damage every Frequency Multiplier second(s)
3 ⟶ Deal one damage every 'Amount' * 'Frequency Multiplier' second(s)
4 ⟶ Reduce Strength score by Amount
5 ⟶ Reduce Dexterity score by Amount
6 ⟶ Reduce Constitution score by Amount
7 ⟶ Reduce Intelligence score by Amount
8 ⟶ Reduce Wisdom score by Amount
9 ⟶ Reduce Charisma score by Amount
10 ⟶ Slow Effect
11 ⟶ Mold touch/Single
12 ⟶ Mold touch/Decrement
13 ⟶ Contagion

Amount can be positive (penalty) or negative (bonus).

Icon defines the index from STATDESC.2DA for custom portrait icons. Default value is None (no icon).

Important: Permanent timing modes require a duration for this effect to work.

Info: This opcode deals POISON damage, except Mold Touches, which deal MAGIC damage.

Info: If Frequency Multiplier = 0, its value is treated as 1. This is the default value for SPL/ITM effects.

Info: The Slow effect is no different from that caused by opcode #40 (Slow), including its stacking interaction with Haste, except that it is blocked/removed as a disease, not as a slow effect.

Info: Contagion is a composite of Strength, Dexterity, Charisma drain and the Slow effect, each ability score reduced by Amount.

Note: When the Type field is 1:

if the Frequency Multiplier field is non-zero, damage is always dealt.
if the Amount field is less than 256, damage is dealt while HP > 100 / 'Amount'.

Info: Maintains DISEASED on the target.

Info: Mold Touch is complicated: the general idea is that it deals x or xd6 damage and applies the SPL file specified by the resource key (default: "original resource" + B) every (round or second) for either 1 round (single) or across multiple rounds dealing less each round (decrement). In particular:

If Type=11:
- Timing Mode should be 3 (with no duration).
- In SPLs/ITMs, it always causes 1d6 damage.
- In external EFFs it functions identically to 'Mold Touch/Decrement', in every way (see below for further details).
if Type=12:
- The first hit doesn't occur immediately, but instead at 80 ticks (exactly), the second hit occurs at 90 ticks (6 seconds), then later hits occur 1 round apart. So:
  1^st hit: 5.33s(80t), 2^nd hit: 6s(90t), 3^rd hit: 12s(180t), etc...
  Oddly, this effect measures rounds as 6 seconds (90 ticks) intervals, not 100 ticks.
- As far as damage dealt is concerned, in SPLs/ITMs:
  - x = 'Amount'(d6), decrementing the amount by 1 die every round, until zero.
  - Should always use Timing Mode 1, 3 or 4, and only a non-zero duration if using Timing Mode 4.
  - If Timing Mode is 1 or 4, the portrait icon, and DISEASED remain until cured/death.
  - If Timing Mode is 3 (with no duration), it will expire 1 round after the final damage (when it realizes the amount has reached zero). Timing Mode 3 and duration = 0 should be the "default" setting for this mode right now.
- As far as damage dealt is concerned, in external EFFs:
  - x = (remaining 'Duration' / 6)(d6), or just (remaining 'Duration' / 6) if Frequency Multiplier >= 65536.
  - The damage dice is rounded down.
  - Because the first hit doesn't occur until 80 ticks, any duration shorter will have no triggers.
  - The Portrait Icon and DISEASED will remain for the full specified duration.
- The SPL resource is applied at the same/every time as the damage, though the damage occurs first.

Frequency Multiplier determines whether it deals damage every second or every round, and whether it deals x or xd6 damage.

Frequency Multiplier = 0 ⟶ xd6 per round
Frequency Multiplier = 65536 or greater (must be even) ⟶ x per second
Frequency Multiplier = 65537 or greater (must be odd) ⟶ x per round

Regardless, the value of x decrements only once per round.

#79 (0x4F) Cure: Disease
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Removes the disease and feeblemind effects from the targeted creature(s).
This effect ignores durations attributed to it. It also unsets the feeblemind state bit.

Important: Both parameters should be 0 (zero).

#80 (0x50) State: Deafness Variants: IWD2
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Applies the Deafness effect on the targeted creature(s) – creatures suffer a casting failure rate of 50% (20% in bg1, unknown in iwd1). The casting failure rate refers to Wizard and Priest spells only. This is cumulative with Miscast Magic.

Warning: PST: it is unclear if this effect exist or does anything!

Info: Maintains DEAFENED on the target (EE only).

#81 (0x51) Cure: Deafness
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Removes the deafness effect from the targeted creature(s).
This effect ignores durations attributed to it.

Important: Both parameters should be 0 (zero).

Warning: PST: it is unclear if this effect exists or does anything!

#82 (0x52) Set AI Script Variants: PST
Parameter #1: Irrelevant
Parameter #2: Type

Description:

Sets the script type specified by the Type value to the contents of the resource key.
Known values for Type are:

0 ⟶ OVERRIDE
1 ⟶ AREA
2 ⟶ SPECIFICS
4 ⟶ CLASS
5 ⟶ RACE
6 ⟶ GENERAL
7 ⟶ DEFAULT

Warning: This effect can unset scripts from a creature, which can break the game.

Note:

Effect is always instantaneous/delayed.
AREA and SPECIFICS can only be set on non-global creatures (not potential party members or familiars), and are lost upon saving & reload.

#83 (0x53) Protection: From Projectile Variants: BG1 IWD1 IWD2 PST
Parameter #1: Irrelevant
Parameter #2: Projectile Index

Description:

Protects the targeted creatures(s) from any effect(s) delivered by the specified projectile.
Values for Projectile Index are taken from PROJECTL.IDS.

Important: Area-Effect projectiles only impact through their explosion and/or secondary projectiles, so they are what must be specified in Projectile Index.

Note: Cannot protect against the projectile used by Melee weapon attacks (this is contrast to opcode #197, which CAN reflect them (by specifying projectile #0|NONE)).

#84 (0x54) Stat: Magical Fire Resistance Modifier Variants: IWD1 IWD2
Parameter #1: Statistic Modifier
Parameter #2: Type

Description:

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

0 ⟶ Cumulative Modifier: Resistance = Resistance + 'Statistic Modifier' value
1 ⟶ Flat Value Modifier: Resistance = 'Statistic Modifier' value
2 ⟶ Percentage Modifier: Resistance = (Resistance * 'Statistic Modifier' value) / 100

Statistic Modifier can be positive or negative.

The effect modifies RESISTMAGICFIRE.

#85 (0x55) Stat: Magical Cold Resistance Modifier Variants: IWD1 IWD2
Parameter #1: Statistic Modifier
Parameter #2: Type

Description:

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

0 ⟶ Cumulative Modifier: Resistance = Resistance + 'Statistic Modifier' value
1 ⟶ Flat Value Modifier: Resistance = 'Statistic Modifier' value
2 ⟶ Percentage Modifier: Resistance = (Resistance * 'Statistic Modifier' value) / 100

Statistic Modifier can be positive or negative.

The effect modifies RESISTMAGICCOLD.

#86 (0x56) Stat: Slashing Resistance Modifier Variants: IWD2
Parameter #1: Statistic Modifier
Parameter #2: Type

Description:

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

0 ⟶ Cumulative Modifier: Resistance = Resistance + 'Statistic Modifier' value
1 ⟶ Flat Value Modifier: Resistance = 'Statistic Modifier' value
2 ⟶ Percentage Modifier: Resistance = (Resistance * 'Statistic Modifier' value) / 100

Statistic Modifier can be positive or negative.

The effect modifies RESISTSLASHING.

#87 (0x57) Stat: Crushing Resistance Modifier Variants: IWD2
Parameter #1: Statistic Modifier
Parameter #2: Type

Description:

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

0 ⟶ Cumulative Modifier: Resistance = Resistance + 'Statistic Modifier' value
1 ⟶ Flat Value Modifier: Resistance = 'Statistic Modifier' value
2 ⟶ Percentage Modifier: Resistance = (Resistance * 'Statistic Modifier' value) / 100

Statistic Modifier can be positive or negative.

The effect modifies RESISTCRUSHING.

#88 (0x58) Stat: Piercing Resistance Modifier Variants: IWD2
Parameter #1: Statistic Modifier
Parameter #2: Type

Description:

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

0 ⟶ Cumulative Modifier: Resistance = Resistance + 'Statistic Modifier' value
1 ⟶ Flat Value Modifier: Resistance = 'Statistic Modifier' value
2 ⟶ Percentage Modifier: Resistance = (Resistance * 'Statistic Modifier' value) / 100

Statistic Modifier can be positive or negative.

The effect modifies RESISTPIERCING.

#89 (0x59) Stat: Missiles Resistance Modifier Variants: IWD2
Parameter #1: Statistic Modifier
Parameter #2: Type

Description:

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

0 ⟶ Cumulative Modifier: Resistance = Resistance + 'Statistic Modifier' value
1 ⟶ Flat Value Modifier: Resistance = 'Statistic Modifier' value
2 ⟶ Percentage Modifier: Resistance = (Resistance * 'Statistic Modifier' value) / 100

Statistic Modifier can be positive or negative.

The effect modifies RESISTMISSILE.

#90 (0x5A) Stat: Open Locks Modifier
Parameter #1: Statistic Modifier
Parameter #2: Type

Description:

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

0 ⟶ Cumulative Modifier: Skill = Skill + 'Statistic Modifier' value
1 ⟶ Flat Value Modifier: Skill = 'Statistic Modifier' value
2 ⟶ Percentage Modifier: Skill = (Skill * 'Statistic Modifier' value) / 100

Important: Timing Modes 1/4/7 permanently alters the creature's Open Locks score, leaving no removable effect.

Note: (EE only) When Type = 0 and Timing Mode = 9, it modifies LOCKPICKINGMTPBONUS. The final value for this stat is multiplied by its percentage entry in THIEFSCL.2DA, capped to the range [0,255], before being included in the creature’s Open Locks score.

#91 (0x5B) Stat: Find Traps Modifier
Parameter #1: Statistic Modifier
Parameter #2: Type

Description:

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

0 ⟶ Cumulative Modifier: Skill = Skill + 'Statistic Modifier' value
1 ⟶ Flat Value Modifier: Skill = 'Statistic Modifier' value
2 ⟶ Percentage Modifier: Skill = (Skill * 'Statistic Modifier' value) / 100

Important: Timing Modes 1/4/7 permanently alters the creature's Find Traps score, leaving no removable effect.

Note: (EE only) When Type = 0 and Timing Mode = 9, it modifies TRAPSMTPBONUS. The final value for this stat is multiplied by its percentage entry in THIEFSCL.2DA, capped to the range [0,255], before being included in the creature’s Find Traps score.

#92 (0x5C) Stat: Pick Pockets Modifier
Parameter #1: Statistic Modifier
Parameter #2: Type

Description:

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

0 ⟶ Cumulative Modifier: Skill = Skill + 'Statistic Modifier' value
1 ⟶ Flat Value Modifier: Skill = 'Statistic Modifier' value
2 ⟶ Percentage Modifier: Skill = (Skill * 'Statistic Modifier' value) / 100

Important: Timing Modes 1/4/7 permanently alters the creature's Pick Pockets score, leaving no removable effect.

Note: (EE only) When Type = 0 and Timing Mode = 9, it modifies PICKPOCKETMTPBONUS. The final value for this stat is multiplied by its percentage entry in THIEFSCL.2DA, capped to the range [0,255], before being included in the creature’s Pick Pockets score.

#93 (0x5D) Stat: Fatigue Modifier
Parameter #1: Statistic Modifier
Parameter #2: Type

Description:

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

0 ⟶ Cumulative Modifier: Fatigue = Fatigue + 'Statistic Modifier' value
1 ⟶ Flat Value Modifier: Fatigue = 'Statistic Modifier' value
2 ⟶ Percentage Modifier: Fatigue = (Fatigue * 'Statistic Modifier' value) / 100

Statistic Modifier can be positive or negative.

The effect modifies FATIGUE.

#94 (0x5E) Stat: Drunkenness Modifier
Parameter #1: Statistic Modifier
Parameter #2: Type

Description:

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

0 ⟶ Cumulative Modifier: Drunkenness = Drunkenness + 'Statistic Modifier' value
1 ⟶ Flat Value Modifier: Drunkenness = 'Statistic Modifier' value
2 ⟶ Percentage Modifier: Drunkenness = (Drunkenness * 'Statistic Modifier' value) / 100

Statistic Modifier can be positive or negative.

The effect modifies INTOXICATION.

#95 (0x5F) Stat: Tracking Skill Modifier
Parameter #1: Statistic Modifier
Parameter #2: Type

Description:

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

0 ⟶ Cumulative Modifier: Skill = Skill + 'Statistic Modifier' value
1 ⟶ Flat Value Modifier: Skill = 'Statistic Modifier' value
2 ⟶ Percentage Modifier: Skill = (Skill * 'Statistic Modifier' value) / 100

Statistic Modifier can be positive or negative.

The effect modifies TRACKING.

#96 (0x60) Stat: Level Change Variants: BG1
Parameter #1: Statistic Modifier
Parameter #2: Type

Description:

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

0 ⟶ Cumulative Modifier: Level = Level + 'Statistic Modifier' value
1 ⟶ Flat Value Modifier: Level = 'Statistic Modifier' value
2 ⟶ Percentage Modifier: Level = (Level * 'Statistic Modifier' value) / 100

Note: In IWD2 the class to receive the change is specified at 0x2C

Important: Timing Modes 1/4/7 permanently alter the creature's level, leaving no removable effect.

Note: Can only modify the first class level, it cannot modify second or third class levels.

#97 (0x61) Stat: Exceptional Strength Modifier
Parameter #1: Statistic Modifier
Parameter #2: Type

Description:

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

0 ⟶ Cumulative Modifier: Exceptional Strength = Exceptional Strength + 'Statistic Modifier' value
1 ⟶ Flat Value Modifier: Exceptional Strength = 'Statistic Modifier' value
2 ⟶ Percentage Modifier: Exceptional Strength = (Exceptional Strength * 'Statistic Modifier' value) / 100

Statistic Modifier can be positive or negative.

The effect modifies STREXTRA.

#98 (0x62) HP: Regeneration Variants: IWD1 IWD2 PST BG1
Parameter #1: Amount_1
Parameter #2: Type
Parameter #3: Amount_2
Parameter #4: Frequency Multiplier
Special: Icon

Description:

Restores HP according to the style specified by the Type field, to the targeted creature(s).
Known values for Type are:

0 ⟶ Restore 1 HP per second
- Amount_2 and Frequency Multiplier are ignored – Amount_1 needs to be non-zero
1 ⟶ Restore 1 HP per second
- for best results, leave both Amount_2 and Frequency Multiplier at 0, Amount_1 between 1 and 101
2 ⟶ Restore Amount_1 HP every Frequency Multiplier second(s)
3 ⟶ Restore 1 HP every 'Amount_1' * 'Frequency Multiplier' second(s)
4 ⟶ Restore Amount_2 HP every 'Amount_1' * 'Frequency Multiplier' second(s) – This is the only one that must be in external EFF files

Icon defines the index from STATDESC.2DA for custom portrait icons. Default value is None (no icon).

Warning: Type values greater or equal to 5 will crash the game!

Important: Permanent timing modes require a duration for this effect to work.

Info: If Frequency Multiplier = 0, its value is treated as 1. This is the default value for SPL/ITM effects.

Note: When the Type field is 1:

if the Frequency Multiplier field is non-zero, HP is always restored.
if the Amount_1 field is less than 256, HP is restored while HP > 100 / 'Amount_1'.

#99 (0x63) Spell Effect: Duration Modifier
Parameter #1: Duration Modifier
Parameter #2: Type

Description:

Alters spell durations of the targeted creature(s), to the percentage specified by the Duration Modifier field, affecting the spell type specified by the Type field. Timing mode 0 is the only timing mode reliably affected. Timings handled through PRO files are ignored.
For instance:

Duration Modifier = 0 ⟶ Spells have no duration
Duration Modifier = 100 ⟶ Spells have normal duration
Duration Modifier = 200 ⟶ Spells have double duration

Known values for Type are:

0 ⟶ Mage
1 ⟶ Priest
2 ⟶ Bard Song (EE only)

The effect modifies SPELLDURATIONMODMAGE and SPELLDURATIONMODPRIEST.

Note: Durations handled by Static Charge are unaffected (EE only).

Note: Not seen to work in BG1.

#100 (0x64) Protection: from Creature Type Variants: IWD2
Parameter #1: IDS Entry
Parameter #2: IDS File

Description:

Gives the targeted creature(s) protection from the creature type specified by the IDS File and IDS Entry fields.
Known values for IDS File are:

2 ⟶ EA.IDS
3 ⟶ GENERAL.IDS
4 ⟶ RACE.IDS
5 ⟶ CLASS.IDS
6 ⟶ SPECIFIC.IDS
7 ⟶ GENDER.IDS
8 ⟶ ALIGN.IDS
9 ⟶ KIT.IDS (EE only; broken at least in 2.5)

To be protected from any creature, leave IDS Entry at 0 (zero), and IDS File at 2. Protection will grant the bearer immunity from being attacked, cast a spell at, or otherwise targeted by creatures with this type.

#101 (0x65) Protection: from Opcode
Parameter #1: Irrelevant
Parameter #2: Opcode

Description:

Gives the targeted creature(s) protection from the opcode specified by the Opcode field.

#102 (0x66) Spell: Immunity (by Power Level)
Parameter #1: Spell Level
Parameter #2: Irrelevant

Description:

Gives the targeted creature(s) protection from effects (opcodes) whose Power attribute is equal to Spell Level (range: 0 – 9).

Info:

Each application of this opcode only protects against its specified Spell Level, not "up to" it.
Each effect in a spell/item is checked separately by this opcode.
CAN block effects of Secondary Type MagicAttack.
- V1 effects inherit their Secondary Type from the Header(SPL) / Extended Header(ITM), V2 effects specify it manually.
CAN block EFF files with resist_dispel = BIT2.
- Keep in mind that this BIT is automatically set on any effect delivered by an Area-Effect (Explosion) projectile, so this opcode can deflect effects through AoE projectiles.
CANNOT block non-hostile effects from self.
- V1 effects inherit their non-hostile behavior from the Header(SPL) / Extended Header(ITM), V2 effects specify it manually.

Note: EFF files delivered by opcode #177/opcode #283 will interact with Deflection separately from the opcode #177/opcode #283 effect that applies them, and only if that opcode #177/opcode #283 effect already got through. If the opcode #177/opcode #283 effect is deflected, then the values in the EFF file won’t matter. Most vanilla EFF files have these fields set to empty/zero to avoid interacting with this opcode.

#103 (0x67) Text: Change Name
Parameter #1: String Reference
Parameter #2: Irrelevant

Description:

Alters the name of the targeted creature(s) to the strref specified by the String Reference field. When used with a duration timing, after the duration, the name will be set to a blank entry.

#104 (0x68) Stat: Experience Points
Parameter #1: Statistic Modifier
Parameter #2: Type

Description:

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

0 ⟶ Cumulative Modifier: XP = XP + 'Statistic Modifier' value
1 ⟶ Flat Value Modifier: XP = 'Statistic Modifier' value
2 ⟶ Percentage Modifier: XP = (XP * 'Statistic Modifier' value) / 100

The effect modifies XP.

#105 (0x69) Stat: Gold Variants: BG1
Parameter #1: Statistic Modifier
Parameter #2: Type

Description:

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

0 ⟶ Cumulative Modifier: Gold = Gold - 'Statistic Modifier' value
1 ⟶ Flat Value Modifier: Gold = 'Statistic Modifier' value
2 ⟶ Percentage Modifier: Gold = (Gold * 'Statistic Modifier' value) / 100

The effect modifies party gold or GOLD for everyone else.

Note: Type=0 can only remove gold. Gold amount has a lower bound of 0.

#106 (0x6A) Stat: Morale Break Modifier
Parameter #1: Statistic Modifier
Parameter #2: Type

Description:

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

0 ⟶ Cumulative Modifier: Morale Break = Morale Break + 'Statistic Modifier' value
1 ⟶ Flat Value Modifier: Morale Break = 'Statistic Modifier' value
2 ⟶ Percentage Modifier: Morale Break = (Morale Break * 'Statistic Modifier' value) / 100

The effect modifies MORALEBREAK.

#107 (0x6B) Portrait Change
Parameter #1: Irrelevant
Parameter #2: Type

Description:

Sets the portrait of the targeted creature(s) to that specified in the resource key, based on the Type value. This effect ignores durations attributed to it.
Known values for Type are:

0 ⟶ Small portrait
1 ⟶ Large portrait

#108 (0x6C) Stat: Reputation
Parameter #1: Statistic Modifier
Parameter #2: Type

Description:

Sets the individual reputation of the targeted creature(s) to the value specified by the Statistic Modifier field in the style specified by the Type field.
This does not affect the main reputation of the Party, unless Type 3-5 are used. Though it can affect ranger/paladinhood of any target.
Known values for Type are:

0 ⟶ Cumulative Modifier: Reputation = Reputation + 'Statistic Modifier' value
1 ⟶ Flat Value Modifier: Reputation = 'Statistic Modifier' value
2 ⟶ Percentage Modifier: Reputation = (Reputation * 'Statistic Modifier' value) / 100
3 ⟶ Increment Party Reputation by 10 * 'Statistic Modifier', cannot lower reputation below 100, will raise reputation to 100 if already less (only in EEs)
4 ⟶ Party Reputation = 'Statistic Modifier' value, cannot lower reputation below 100, will raise reputation to 100 if already less (only in EEs)
5 ⟶ Party Reputation = (Party Reputation * 'Statistic Modifier' value) / 100, cannot lower reputation below 100, will raise reputation to 100 if already less (only in EEs)

The effect modifies REPUTATION.

#109 (0x6D) State: Paralyze Variants: BG2 PST BG1
Parameter #1: IDS Entry
Parameter #2: IDS File
Special: Mode

Description:

Applies the hold effect to the targeted creature(s), if the targeted creature(s) match the value specified by the IDS Entry field, in the specified IDS File.
Known values for IDS File are:

2 ⟶ EA.IDS
3 ⟶ GENERAL.IDS
4 ⟶ RACE.IDS
5 ⟶ CLASS.IDS
6 ⟶ SPECIFIC.IDS
7 ⟶ GENDER.IDS
8 ⟶ ALIGN.IDS
9 ⟶ KIT.IDS

The affected creature becomes immobile and its AI scripts stop running.
This effect sets HELD to 1. It also sets the STATE_HELPLESS flag.

Known values for Mode are:

0 ⟶ Default
Non-zero ⟶ False Petrify
- In addition to the normal paralyze effect, it maintains a detectable STATE_STONE_DEATH and the stone overlay, but does not directly kill, award XP, or chunk when attacked. Only functions like this against non-party members.
- Against party members, it functions as normal, unless you save and reload while the effect is active. Upon reloading, the stone overlay will be applied and the character will be dropped to 0 hit points, but not killed, and no STATE_STONE_DEATH (this is probably to avoid kicking the character from the party)

#110 (0x6E) Empty: Variants: BG1 IWD2 PST
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

This opcode has no effect.

Note: It is still processed, so it will still interact with Spell Turning/Deflection/etc… just like any other effect.

#111 (0x6F) Item: Create Magical Weapon
Parameter #1: Amount
Parameter #2: Irrelevant

Description:

Creates the item specified by the resource key. The number of items created is controlled by the Amount field. The item is created in the Magical Weapon Slot.

Important: The Magical Weapon Slot does not allow Item Abilities.

Warning: The resource field should not be empty, or the game will crash (not consistently, but it happens).

Info: The dispel bit of opcode #111 has no bearing on the item it creates. Its only function comes up when the opcode #111 effect is delayed — the effect can be dispelled before it triggers (see also undispellable and opcode #58).

#112 (0x70) Item: Remove Item Variants: BG1
Parameter #1: Sound
Parameter #2: Irrelevant

Description:

Removes a single instance (or stack) of the item specified by the resource key from the targeted creature(s). Items in container items (e.g. Bags of Holding) will not be removed. If a creature has multiple instances of the item, the one in the lowest slot number (see SLOTS.IDS) is removed. This effect should be used to remove equipped items (use opcode #123 for inventory items).

On successful removal, parameter "Sound" dictates which sound will be played:

0 ⟶ Play EFF_M02.WAV

1 ⟶ Play AMB_D02B.WAV

2 ⟶ Play Resource2.WAV

3+ ⟶ No sound

#113 (0x71) Empty: Variants: BG1
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

This opcode has no effect.

Note: It is still processed, so it will still interact with Spell Turning/Deflection/etc… just like any other effect.

#114 (0x72) Graphics: Dither Variants: IWD1
Parameter #1: Undefined
Parameter #2: Undefined

Description:

Sets IDENTIFYMODE to 1.
Affected creature will be visible, targetable, and if controlled, selectable and orderable within the semi-transparent fog of war, but not within the black shroud.

#115 (0x73) Detect: Alignment Variants: IWD2
Parameter #1: Irrelevant
Parameter #2: Alignment Mask

Description:

Detects the alignment specified by the Alignment Mask field.
Known values for Alignment Mask are:

0 ⟶ Evil (glow Red)
1 ⟶ Neutral (glow Blue)
2 ⟶ Good (glow Green)

#116 (0x74) State: Cure Invisibility
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Removes invisibility from the targeted creature(s). Also removes STATE_INVISIBLE and STATE_IMPROVEDINVISIBILITY.
This effect ignores durations attributed to it.

Important: Both parameters should be 0 (zero).

Info:

The only difference between this opcode and opcode #47 is their index – you can block one with opcode #101 without blocking the other. That's it.
Both remove the same effects/STATEs, both are blocked by opcode #69.
They might have been intended for identical function, different uses, similar to opcodes #5/#241 (Charm), but it never happened.
Opcode #116 is used extensively because the original BG1 used it, and didn't use opcode #47 at all.

#117 (0x75) Spell Effect: Reveal Area Variants: IWD2
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Reveals the current area.

Note: It does not remove the fog of war.

#118 (0x76) Empty: Variants: BG1
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

This opcode has no effect.

Note: It is still processed, so it will still interact with Spell Turning/Deflection/etc… just like any other effect.

#119 (0x77) Spell Effect: Mirror Image Variants: IWD1
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Applies the Mirror Image effect to the targeted creature(s). The number of images is dicated by the level of the caster.
The exact formula is 'Parameter1' = 2 + ('Caster Level of the spell containing op119' / 3).

Info:

A Wizard spell with op119 will use the caster's Wizard Casting Level.
A Priest spell with op119 will use the caster's Priest Casting Level.
An Innate spell with op119 will use the caster's Innate Casting Level.

Note: A side note about non-spellcaster classes:

A Mirror Image scroll used by a Thief with HLA Use Any Item will use the level 10 duration, but the level 1 Image count.
The scroll casts the spell at level 10, but the opcode checks the caster’s Wizard Caster Level (which for a Thief is 1).

#120 (0x78) Protection: from Weapons
Parameter #1: Enchantment
Parameter #2: Type

Description:

Gives the targeted creature(s) immunity to weapons as specified by the Type field. The Enchantment field is used if Type is set to 0.
Known values for Type are:

0 ⟶ Enchanted
1 ⟶ Magical
2 ⟶ Non-Magical
3 ⟶ Silver
4 ⟶ Non-Silver
5 ⟶ Non-Silver / Non-Magical
6 ⟶ Two-Handed
7 ⟶ One-Handed
8 ⟶ Cursed
9 ⟶ Non-Cursed
10 ⟶ Cold Iron
11 ⟶ Non Cold Iron

Info: Keep in mind that:

Protected weapons will still trigger HitBy(), but will not interact with Mirror Image or Stone skins.
Blocks weapon damage, on-hit effects of the weapon, opcode #248 and opcode #249, regardless of the effects target.
Area-effect projectiles (f.i. Arrow of Detonation) only check for Weapon Immunity on the attacked target, and use that result for all caught within their area of effect.

#121 (0x79) Empty:
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

This opcode has no effect. Sometimes known as "Graphics: (Visual Animation Effect)".

Note: It is still processed, so it will still interact with Spell Turning/Deflection/etc… just like any other effect.

#122 (0x7A) Item: Create Inventory Item Variants: BG1 IWD2
Parameter #1: Charges
Parameter #2: Irrelevant

Description:

Creates the item specified by the resource key. The number of items created is controlled by the Charges field. The number of secondary charge is determined by Parameter3. The number of tertiary charges is determined by Parameter4 (external EFFs). The item is created in the Inventory.

Info:

(EE only) Resource 2 and Resource 3 (external EFFs): item to be created is randomly chosen from resource fields 1–3 that are not empty.
Applies a delayed opcode #123 effect to remove the item (based on specified duration)

#123 (0x7B) Item: Remove Inventory Item
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Removes the item specified by the resource key from the targeted creature(s). This effect should be used to remove inventory items (use opcode #112 for equipped items).
In particular:

Removes all item(s) in the first slot containing the specified resource key from the targeted creature(s).
Items in container items (e.g. Bags of Holding) will not be removed.
Inventory slots are checked in numerical order from SLOTS.IDS.

#124 (0x7C) Spell Effect: Teleport (Dimension Door) Variants: IWD1 PST
Parameter #1: Irrelevant
Parameter #2: Type

Description:

Teleports the targeted creature(s) in the style specified by the Type field.
Known values for Type are:

0 ⟶ Default
1 ⟶ Source to Target
2 ⟶ Return to Saved Location
3 ⟶ Exchanged Source and Target

Info: Return to Saved Location: Teleport effect target to the coordinates stored by SetHomeLocation(P:Point*) for that creature. Defaults to (0.0) if not set.

#125 (0x7D) Spell Effect: Unlock (Knock)
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Applies the knock effect to the targeted creature(s).

Important: Both parameters should be 0 (zero).

Important: It is automatically successful but only works on locks that can normally be picked with the Open Locks skill.

#126 (0x7E) Stat: Movement Modifier Variants: PST
Parameter #1: Statistic Modifier
Parameter #2: Type

Description:

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
The engine allows values for Statistic Modifier from 0 (immobile) to 255 (instantaneous), though behaviour is only consistent in the range 0 – 30.
Known values for Type are:

0 ⟶ Cumulative Modifier: Movement = Movement + 'Statistic Modifier' value
1 ⟶ Flat Value Modifier: Movement = 'Statistic Modifier' value
2 ⟶ Non-stacking Percentage Modifier: Movement = (Movement * 'Statistic Modifier' value) / 100
5 ⟶ Multiplicative Stacking Percentage Modifier: Movement = (Movement * 'Statistic Modifier' value) / 100 (EE only)

Note: BG1 does not support the cumulative modifier and will behave as if in flat modifier mode.

Info: A couple of examples about Multiplicative Stacking Percentage Modifier:

50% * 50% = 25%
150% * 150% = 225%

#127 (0x7F) Summon: Monster Summoning Variants: IWD2 PST
Parameter #1: Number
Parameter #2: Type
Special: Mode

Description:

Summons a number of monsters.
Each CRE file has a Creature Power Level number. The amount of monsters summoned by this effect depends on this value, the special parameter and if it's used in SPL / ITM or from an external EFF.
When used in SPL/ITM files, known value for Mode are:

0 ⟶ Summon until Creature Power Level equals/exceeds Number
1 ⟶ Summon amount equal to Number
2 ⟶ Summon until Creature Power Level equals/exceeds Caster's Level

When used in external EFF files, known value for Mode are:

0 ⟶ Summon until Creature Power Level equals/exceeds Number
1 ⟶ Summon amount equal to 'Number' + Dice rolls
2 ⟶ Summon until Creature Power Level equals/exceeds Caster Level field

The Type field sets which 2DA file to pick the creatures to summon from. The 2da files are monsumX and anisumX, where X = 'Type' + 1. 0–4 are allied , 5–9 are hostile. The specific 2da files used are:

0 ⟶ MONSUM01: Monster Summon 1
1 ⟶ MONSUM02: Monster Summon 2
2 ⟶ MONSUM03: Monster Summon 3
3 ⟶ ANISUM01: Animal Summon 1
4 ⟶ ANISUM02: Animal Summon 2
5 ⟶ MONSUM01: Monster Summon 1 Hostile
6 ⟶ MONSUM02: Monster Summon 2 Hostile
7 ⟶ MONSUM03: Monster Summon 3 Hostile
8 ⟶ ANISUM01: Animal Summon 1 Hostile
9 ⟶ ANISUM02: Animal Summon 2 Hostile

A custom .2da file can be entered in the resource field (untested in bg1).
If used from an external effect (.eff), the vvc field controls the bam file played when summoning.

#128 (0x80) State: Confusion
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Applies the confusion effect to the targeted creature(s). The creature will run around uncontrollable, randomly attacking.

Important: Timing Mode 1 will set STATE_CONFUSED without leaving behind a removable effect.

Info: STATE_CONFUSED specs:

Creature is unseletectable, Inventory is disabled.
The creature's AI scripts are disabled.
The creature will randomly execute actions AttackReevaluate(NearestEnemyOf(Myself),15), RandomWalk(), or NoAction().
Disables Saving while affecting a Party Member (displayed message: "You do not control all your Party Members")

#129 (0x81) State: Aid Variants: PST
Parameter #1: Statistic Modifier
Parameter #2: Irrelevant

Description:

Applies a bless effect to the targeted creature(s).
In particular:

Grants a bonus/penalty to all Saving Throws equal to Statistic Modifier.
Grants a bonus/penalty to Current and Maximum Hit Points equal to 'Statistic Modifier'd8.
Grants a bonus/penalty to base THAC0 equal to Statistic Modifier.
Grants a bonus/penalty to base weapon damage equal to Statistic Modifier.
Saving throws, THAC0, and Damage modifiers read only the first byte of Statistic Modifier for their value, the last 3 bytes are ignored.
HP modifier uses the whole 4 bytes of Statistic Modifier.
HP modifier is always positive (negative values become zero), but because Max HP itself is not bounded, it can overflow into negative amounts (Max HP is 32767).
When used in external EFFs, Parameter2 controls the exact amount of HP gained.

Note:

While this opcode is "Non-Cumulative" (it sets values rather than increment), what it really does is stack in reverse standard order.
The base STATE set on the CRE file will override any effect applied to them (defaulting to a value of zero).
The oldest equipped effect will override newer equipped effects, and any equipped effect will override a non-equipped effect.
The oldest non-equipped effect will override newer non-equipped effects.

Testing in the original BG2 shows that if this opcode is used on an item with “while equipped” duration, it becomes “permanent” when the item is equiped. Meaning that one can equip/unequip the item multiple times to give more and more eg. maximum hitpoints.

#130 (0x82) State: Bless Variants: PST
Parameter #1: Modifier
Parameter #2: Irrelevant

Description:

Modifies the THAC0, damage and morale of the target creature(s) by the amount specified by the Modifier parameter.
In particular:

Modifies THAC0
Modifies DAMAGEBONUS
Morale is a 5 point bonus.

Note:

While this opcode is "Non-Cumulative" (it sets values rather than increment), what it really does is stack in reverse standard order.
The base STATE set on the CRE file will override any effect applied to them (defaulting to a value of zero).
The oldest equipped effect will override newer equipped effects, and any equipped effect will override a non-equipped effect.
The oldest non-equipped effect will override newer non-equipped effects.

Note: Modifier only reads the first byte for its value, the last 3 bytes are ignored.

Note: In IWD2 the effect is non-cumulative and also removes any Bane effects. This does not apply to Doom in other games.

#131 (0x83) State: Positive Chant Variants: IWD2
Parameter #1: Modifier
Parameter #2: Irrelevant

Description:

Applies the chant effect to the targeted creature(s).
This opcode has the same effects as opcode #22, but maintains its own separate STATE.
This opcode modifies LUCK.

Note: Multiple chant effects are not cumulative.

Note:

While this opcode is "Non-Cumulative" (it sets values rather than increment), what it really does is stack in reverse standard order.
The base STATE set on the CRE file will override any effect applied to them (defaulting to a value of zero).
The oldest equipped effect will override newer equipped effects, and any equipped effect will override a non-equipped effect.
The oldest non-equipped effect will override newer non-equipped effects.

Note: Modifier only reads the first byte for its value, the last 3 bytes are ignored.

#132 (0x84) State: Raise Strength, Constitution, & Dexterity Non-Cumulative
Parameter #1: Statistic Modifier
Parameter #2: Irrelevant

Description:

Raises the strength, constitution and dexterity of the targeted creature(s) by the value specified by the Statistic Modifier field. A negative value of Statistic Modifier sets the Strength, Constitution and Dexterity of the targeted creature(s) to 25.

Note:

While this opcode is "Non-Cumulative" (it sets values rather than increment), what it really does is stack in reverse standard order.
The base STATE set on the CRE file will override any effect applied to them (defaulting to a value of zero).
The oldest equipped effect will override newer equipped effects, and any equipped effect will override a non-equipped effect.
The oldest non-equipped effect will override newer non-equipped effects.

Note: Statistic Modifier only reads the first byte for its value, the last 3 bytes are ignored.

#133 (0x85) Spell Effect: Luck Non-Cumulative
Parameter #1: Statistic Modifier
Parameter #2: Irrelevant

Description:

Applies the luck effect to the targeted creature(s).
This opcode has the same effects as opcode #22, but maintains its own separate STATE.
This opcode modifies LUCK.

Note:

While this opcode is "Non-Cumulative" (it sets values rather than increment), what it really does is stack in reverse standard order.
The base STATE set on the CRE file will override any effect applied to them (defaulting to a value of zero).
The oldest equipped effect will override newer equipped effects, and any equipped effect will override a non-equipped effect.
The oldest non-equipped effect will override newer non-equipped effects.

Note: Statistic Modifier only reads the first byte for its value, the last 3 bytes are ignored.

#134 (0x86) State: Petrification
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Applies the petrification effect to the targeted creature(s). This effects kills & removes PC's from the party, and ends the game if used on the Protagonist (not in IWDs or PST).

Important: Both parameters should be 0 (zero).

Note: Does not remove any other death STATEs from the creature (as opcode #13 does).
While the end result is otherwise the same as “Stoned Death” applied by opcode #13, this opcode does not actually utilize opcode #13 (internally or otherwise), unlike most (all?) other forms of death.

Info: STATE_STONE_DEATH specs:

Creature is NOT helpless – they still require an attack roll to be hit.
Creature is unselectable, Inventory is disabled.
Disables the creature's SPECIFIC script.
Creature may only take actions listed in both ACTSLEEP.IDS and INSTANT.IDS.
Any hostile action against the creature(s) applies an Exploding Stoned Death to them.
Kicked from party, retains Inventory, Overlay's Color Index 72 on the entire creature.

#135 (0x87) Graphics: Polymorph into Specific Variants: BG1 IWD2 PST
Parameter #1: Irrelevant
Parameter #2: Type

Description:

Polymorphs the targeted creature(s) into the creature specified by the resource key, in the style specified by the Type field.
Known values for Type are:

0 ⟶ Gain Resistances/statistics (spell-casting disabled)
1 ⟶ Appearance only

This effect sets POLYMORPHED to 1 but only if Type=0.

If the resource key is empty, other Polymorph effects are removed, allowing for removal of permanent effects.

It will also remove any item in SLOT_MISC19 (Magical Weapon Slot), whether or not it was supplying a Polymorph effect.

Bug: At least on EE games, this opcode is bugged when you shapechange between two different non-natural forms. In particular:

All your equipment will be considered as "unequipped" (in particular, you will lose passive bonuses/maluses granted by your Rings, Amulet, Helmet and the like).
- Having said that, a timing=4,duration=0 delay between removing the old polymorph and applying the new will bypass this issue.

Info: When Type is 0, this opcode sets

Strength
Exceptional Strength
Dexterity
Resistances
- Fire
- Cold
- Electricity
- Acid
- Magic
- Magic Fire
- Magic Cold
- Slashing
- Crushing
- Piercing
- Missile
Base AC
Specific AC
- Crushing
- Missile
- Piercing
- Slashing
Base APR

Note: When the resource key is empty, and it subsequently clears other Polymorph effects, Type is used just like param#1 of opcode #337.
As a result, it will clear all Polymorph effects if Type = "-1", else it will only clear Polymorph effects that have a param#2 that matches.

Note:

Parameter3 (external EFF): Circle Size
Parameter4 (external EFF): Animation (from ANIMATE.IDS)

These two values are not functional (changing them does nothing), but they do get set on the effect.

Warning: The creature you’re polymorphing into cannot have STATE_SLEEPING, STATE_FROZEN_DEATH, STATE_STONE_DEATH, STATE_FLAME_DEATH, or STATE_DEAD set in its CRE file, or the game will crash.

#136 (0x88) State: Force Visible
Parameter #1: Undefined
Parameter #2: Undefined

Description:

Renders the targeted creature(s) partially visible: removes normal invisibility, but not the improved invisibility state; the targeted is visible and attackable, but not targetable by spells.

The effect has no meaning on visible targets.
This effect has no duration.

Important: Leave both parameters at zero for this effect to work.

#137 (0x89) State: Negative Chant Variants: IWD2
Parameter #1: Modifier
Parameter #2: Irrelevant

Description:

Applies the chant effect to the targeted creature(s).
This opcode has the same effects as opcode #22, but maintains its own separate STATE.
This opcode modifies LUCK.

This opcode works as the reverse of Chant (positive values decrease Luck, negative values increase Luck).

Note:

While this opcode is "Non-Cumulative" (it sets values rather than increment), what it really does is stack in reverse standard order.
The base STATE set on the CRE file will override any effect applied to them (defaulting to a value of zero).
The oldest equipped effect will override newer equipped effects, and any equipped effect will override a non-equipped effect.
The oldest non-equipped effect will override newer non-equipped effects.

Note: Statistic Modifier only reads the first byte for its value, the last 3 bytes are ignored.

#138 (0x8A) Graphics: Character Animation Change Variants: BG1 IWD1 PST
Parameter #1: Irrelevant
Parameter #2: Animation Sequence

Description:

The targeted creature(s) shows the animation sequence specified by the Animation Sequence field.
Known values for Animation Sequence are (from SEQ.IDS):

0 ⟶ Attack
1 ⟶ Awake
2 ⟶ Cast
3 ⟶ Conjure
4 ⟶ Damage
5 ⟶ Die
6 ⟶ Turn head
7 ⟶ Ready
8 ⟶ Shoot
9 ⟶ Twitch
10 ⟶ Walk
11 ⟶ Attack (Slash)
12 ⟶ Attack (Backslash)
13 ⟶ Attack (Jab)
14 ⟶ Emerge
15 ⟶ Hide
16 ⟶ Sleep

#139 (0x8B) Text: Display String
Parameter #1: String Reference
Parameter #2: Irrelevant

Description:

Displays the strref specified by the String Reference value.

Info: At least in EE games, it is possible to colorize the string. In order to do so, follow the instructions concerning the colorization of the name of your character during Character Creation.

#140 (0x8C) Graphics: Casting Glow Variants: IWD2 PST BG1
Parameter #1: Projectile Index
Parameter #2: Type

Description:

Creates the specified projectile at the targeted creature's location. These effects are usually used for casting glows based on the spell school.
Known values for Type are:

0 ⟶ Use Projectile Index projectile value.
1 .. 8 ⟶ Crash
9 ⟶ PROJECTL[110], Default file: "CGNECROM.PRO"
10 ⟶ PROJECTL[111], Default file: "CGALTERA.PRO"
11 ⟶ PROJECTL[112], Default file: "CGENCHAN.PRO"
12 ⟶ PROJECTL[113], Default file: "CGABJURA.PRO"
13 ⟶ PROJECTL[114], Default file: "CGILLUSI.PRO"
14 ⟶ PROJECTL[115], Default file: "CGCONJUR.PRO"
15 ⟶ PROJECTL[116], Default file: "CGINVOCA.PRO"
16 ⟶ PROJECTL[117], Default file: "CGDIVINA.PRO"

Info: Projectile Index must be treated as in spells, i.e.: value in PROJECTL.IDS + 1

Note: This projectile does not deliver any effects.

Note: The speed of the projectiles animations ARE affected by STATE_HASTED and STATE_SLOWED of the target.

#141 (0x8D) Graphics: Lighting Effects Variants: IWD2 PST BG1
Parameter #1: Target
Parameter #2: Type

Description:

Actually creates the projectile (not just a BAM file) specified by the Type value at the location specified by Target. These effects are usually used for spell hits based on the spell school.
Known values for Target are:

0 ⟶ Current Location
Non-zero ⟶ Target Location

Known values for Type are:

`Type` value	PRO Index	Animation	Palette Notes
0	118	SHAIR.BAM	default (ice)
1	119	SHEARTH.BAM	default (ice)
2	120	SHWATER.BAM	default (ice)
4	121	SHAIR.BAM	SHAIR1.BMP (blue)
5	122	SHEARTH.BAM	SHEARTH1.BMP (blue)
6	123	SHWATER.BAM	SHWATER1.BMP (blue)
8	124	SHAIR.BAM	SHAIR2 (gold)
9	125	SHEARTH.BAM	SHEARTH2 (gold)
10	126	SHWATER.BAM	SHWATER2 (gold)
12	127	SHAIR.BAM	SHAIR3 (green)
13	128	SHEARTH.BAM	SHEARTH3 (green)
14	129	SHWATER.BAM	SHWATER3 (green)
16	130	SHAIR.BAM	SHAIR4 (magenta)
17	131	SHEARTH.BAM	SHEARTH4 (magenta)
18	132	SHWATER.BAM	SHWATER4 (magenta)
20	133	SHAIR.BAM	SHAIR5 (purple)
21	134	SHEARTH.BAM	SHEARTH5 (purple)
22	135	SHWATER.BAM	SHWATER5 (purple)
24	136	SHAIR.BAM	SHAIR6 (red)
25	137	SHEARTH.BAM	SHEARTH6 (red)
26	138	SHWATER.BAM	SHWATER6 (red)
28	139	SHAIR.BAM	SHAIR7 (stone)
29	140	SHEARTH.BAM	SHEARTH7 (stone)
30	141	SHWATER.BAM	SHWATER7 (stone)
32	142	SPBOOM.BAM	MPALETTE[67] (shiny gold)
33	143	SPBOOM.BAM	MPALETTE[65] (really dark gray)
34	144	SPBOOM.BAM	MPALETTE[69] (shiny green)
35	145	FLMSTRK.BAM	default (BG1 flamestrike)
36	146	HLYMITE.BAM	default (BG1 draw upon holy might)
37	147	SHAIR.BAM	default (white)
38	109	SPDIMNDR.BAM	default (BG1 dimension door)
39	207	SPFDEATH.BAM	default (BG1 finger of death)

Note: These projectiles ignore their entry in PROJECTL.IDS, they cannot be overwritten.
Their animations ("SHAIR", "SHWATER", etc…) can be though.

Note: This projectile does not deliver any effects.

Note: The speed of the projectiles animations ARE NOT affected by STATE_HASTED and STATE_SLOWED of the target.

#142 (0x8E) Graphics: Display Special Effect Icon Variants: BG1 IWD1 IWD2
Parameter #1: Irrelevant
Parameter #2: Icon

Description:

Shows the icon specified by the Icon field on the targeted creature(s) portrait.
All values are drawn directly from "STATES.BAM" in the "GUIBam.bif" starting at sequence 65.

`Icon` value	BG2	BG(2):EE	IWD:EE
0	Charm	Charm	Charm
1	Dire Charm	Dire Charm	Dire Charm
2	Rigid Thinking	Rigid Thinking	Rigid Thinking
3	Confused	Confused	Confused
4	Berserk	Berserk	Berserk
5	Intoxicated	Intoxicated	Intoxicated
6	Poisoned	Poisoned	Poisoned
7	Diseased	Diseased	Diseased
8	Blind	Blind	Blind
9	Protection From Evil	Protection From Evil	Protection From Evil
10	Protection From Petrification	Protection From Petrification	Protection From Petrification
11	Protection From Missiles	Protection From Missiles	Protection From Missiles
12	Magic Armor	Magic Armor	Magic Armor
13	Held	Held	Held
14	Sleep	Sleep	Sleep
15	Shielded	Shielded	Shielded
16	Protection From Fire	Protection From Fire	Protection From Fire
17	Blessed	Blessed	Blessed
18	Chant	Chant	Chant
19	Free Action	Free Action	Free Action
20	Barkskin	Barkskin	Barkskin
21	Strength	Strength	Strength
22	Heroism	Heroism	Heroism
23	Invulnerable	Invulnerable	Invulnerable
24	Protection From Acid	Protection From Acid	Protection From Acid
25	Protection From Cold	Protection From Cold	Protection From Cold
26	Resist Fire/Cold	Resist Fire/Cold	Resist Fire/Cold
27	Protection From Electricity	Protection From Electricity	Protection From Electricity
28	Protection From Magic	Protection From Magic	Protection From Magic
29	Protection From Undead	Protection From Undead	Protection From Undead
30	Protection From Poison	Protection From Poison	Protection From Poison
31	Non-detectable	Non-detectable	Non-detectable
32	Good Luck	Good Luck	Good Luck
33	Bad Luck	Bad Luck	Bad Luck
34	Silenced	Silenced	Silenced
35	Cursed	Cursed	Cursed
36	Panic	Panic	Panic
37	Resist Fear	Resist Fear	Resist Fear
38	Haste	Haste	Haste
39	Fatigue	Fatigue	Fatigue
40	Bard Song	Bard Song	Bard Song
41	Slow	Slow	Slow
42	Regenerate	Regenerate	Regenerate
43	Domination	Domination	Domination
44	Hopelessness	Hopelessness	Hopelessness
45	Greater Malison	Greater Malison	Greater Malison
46	Spirit Armor	Spirit Armor	Spirit Armor
47	Chaos	Chaos	Chaos
48	Feebleminded	Feebleminded	Feebleminded
49	Defensive Harmony	Defensive Harmony	Defensive Harmony
50	Champion's Strength	Champion's Strength	Champion's Strength
51	Dying	Dying	Dying
52	Mind Shield	Mind Shield	Mind Shield
53	Energy Drain	Energy Drain	Energy Drain
54	Polymorph Self	Polymorph Self	Polymorph Self
55	Stun	Stun	Stun
56	Regeneration	Regeneration	Regeneration
57	Perception	Perception	Perception
58	Master Thievery	Master Thievery	Master Thievery
59	Energy Drain	Energy Drain	Energy Drain
60	Holy Power	Holy Power	Holy Power
61	Cloak of Fear	Cloak of Fear	Cloak of Fear
62	Iron Skins	Iron Skins	Iron Skins
63	Magic Resistance	Magic Resistance	Magic Resistance
64	Righteous Magic	Righteous Magic	Righteous Magic
65	Spell Turning	Spell Turning	Spell Turning
66	Repulsing Undead	Repulsing Undead	Repulsing Undead
67	Spell Deflection	Spell Deflection	Spell Deflection
68	Fireshield Red	Fireshield Red	Fireshield Red
69	Fireshield Blue	Fireshield Blue	Fireshield Blue
70	Protection from Normal Weapon	Protection from Normal Weapon	Protection from Normal Weapon
71	Protection from Magic Weapon	Protection from Magic Weapon	Protection from Magic Weapon
72	Tenser's Transformation	Tenser's Transformation	Tenser's Transformation
73	Protection from Magical Energy	Spell Shield	Spell Shield
74	Mislead	Mislead	Mislead
75	Contingency Active	Contingency Active	Contingency Active
76	Protected from the Elements	Protected from the Elements	Protected from the Elements
77	Projected Image	Projected Image	Projected Image
78	Maze	Maze	Maze
79	Imprisonment	Imprisonment	Imprisonment
80	Stoneskin	Stoneskin	Stoneskin
81	KAI	KAI	KAI
82	Called Shot	Called Shot	Called Shot
83	Spell Failure	Spell Failure	Spell Failure
84	Offensive Spin	Offensive Spin	Offensive Spin
85	Defensive Spin	Defensive Spin	Defensive Spin
86	Intelligence drained by mind flayer	Intelligence drained by mind flayer	Intelligence drained by mind flayer
87	Regenerating	Regenerating	Regenerating
88	In Dialog	In Dialog	In Dialog
89	In Store	In Store	In Store
90	Negative Plane Protection	Negative Plane Protection	Negative Plane Protection
91	Ability Score Drained	Ability Score Drained	Ability Score Drained
92	Spell Sequencer Active	Spell Sequencer Active	Spell Sequencer Active
93	Protected from Energy	Protected from Energy	Protected from Energy
94	Magnetized	Magnetized	Magnetized
95	Able to Poison Weapons	Able to Poison Weapons	Able to Poison Weapons
96	Setting Trap	Setting Trap	Setting Trap
97	Glass Dust	Glass Dust	Glass Dust
98	Blade Barrier	Blade Barrier	Blade Barrier
99	Death Ward	Death Ward	Death Ward
100	Doom	Doom	Doom
101	Decaying	Decaying	Decaying
102	Acid	Acid	Acid
103	Vocalize	Vocalize	Vocalize
104	Mantle	Mantle	Mantle
105	Miscast Magic	Miscast Magic	Miscast Magic
106	Magic Resistance Lowered	Magic Resistance Lowered	Magic Resistance Lowered
107	Spell Immunity	Spell Immunity	Spell Immunity
108	True Seeing	True Seeing	True Seeing
109	Detecting Traps	Detecting Traps / Illusions	Detecting Traps
110	Improved Haste	Improved Haste	Improved Haste
111	Spell Trigger	Spell Trigger	Spell Trigger
112	Deaf	Deaf	Deaf
113	Enfeebled	Enfeebled	Enfeebled
114	Infravision	Infravision	Infravision
115	Friends	Friends	Friends
116	Shield of the Archons	Shield of the Archons	Shield of the Archons
117	Spell Trap	Spell Trap	Spell Trap
118	Absolute Immunity	Absolute Immunity	Absolute Immunity
119	Improved Mantle	Improved Mantle	Improved Mantle
120	Farsight	Farsight	Farsight
121	Globe of Invulnerability	Globe of Invulnerability	Globe of Invulnerability
122	Minor Globe Of Invulnerability	Minor Globe Of Invulnerability	Minor Globe Of Invulnerability
123	Spell Shield	Protected from Magical Energy	Protected from Magical Energy
124	Polymorphed	Polymorphed	Polymorphed
125	Otiluke's Resilient Sphere	Otiluke's Resilient Sphere	Otiluke's Resilient Sphere
126	Nauseated	Nauseated	Nauseated
127	Ghost Armor	Ghost Armor	Ghost Armor
128	Glitterdust	Glitterdust	Glitterdust
129	Webbed	Webbed	Webbed
130	Unconscious	Unconscious	Unconscious
131	Mental Combat	Mental Combat	Mental Combat
132	Physical Mirror	Physical Mirror	Physical Mirror
133	Repulse Undead	Repulse Undead	Repulse Undead
134	Chaotic Commands	Chaotic Commands	Chaotic Commands
135	Draw Upon Holy Might	Draw Upon Holy Might	Draw Upon Holy Might
136	Strength of One	Strength of One	Strength of One
137	Bleeding	Bleeding	Bleeding
138	Rage	Rage	Rage
139	Boon of Lathander	Boon of Lathander	Boon of Lathander
140	Storm Shield	Storm Shield	Storm Shield
141	Enraged	Enraged	Enraged
142	Stunning Blow	Stunning Blow	Stunning Blow
143	Quivering Palm	Quivering Palm	Quivering Palm
144	Entangled	Entangled	Entangled
145	Grease	Grease	Grease
146	Smite	Smite	Smite
147	Hardiness	Hardiness	Hardiness
148	Power Attack	Power Attack	Power Attack
149	Whirlwind Attack	Whirlwind Attack	Whirlwind Attack
150	Greater Whirlwind Attack	Greater Whirlwind Attack	Greater Whirlwind Attack
151	Magic Flute	Magic Flute	Chaos of Battle
152	Critical Strike	Critical Strike	Critical Strike
153	Greater Deathblow	Greater Deathblow	Greater Deathblow
154	Deathblow	Deathblow	Deathblow
155	Avoid Death	Avoid Death	Avoid Death
156	Assassination	Assassination	Assassination
157	Evasion	Evasion	Evasion
158	Greater Evasion	Greater Evasion	Greater Evasion
159	Improved Alacrity	Improved Alacrity	Improved Alacrity
160	Aura of Flaming Death	Aura of Flaming Death	Aura of Flaming Death
161	Globe of Blades	Globe of Blades	Globe of Blades
162	Improved Chaos Shield	Improved Chaos Shield	Improved Chaos Shield
163	Chaos Shield	Chaos Shield	Chaos Shield
164	Fire Elemental Transformation	Fire Elemental Transformation	Fire Elemental Transformation
165	Earth Elemental Transformation	Earth Elemental Transformation	Earth Elemental Transformation
166	Unknown	Unknown	Mind Blank
167	Unknown	Unknown	Aid
168	Unknown	Unknown	Phased
169	Unknown	Unknown	Pain
170	Unknown	Unknown	Impervious Sanctity of Mind
171	Unknown	Unknown	Petrified
172	Unknown	Unknown	Iron Body
173	Unknown	Unknown	Animal Rage
174	Unknown	Unknown	Exaltation
175	Unknown	Unknown	Recitation
176	Unknown	Unknown	Blood Rage
177	Unknown	Unknown	The Ballad of Three Heroes
178	Unknown	Unknown	The Tale of Curran Strongheart
179	Unknown	Unknown	Tymora's Melody
180	Unknown	Unknown	The Song of Kaudies
181	Unknown	Unknown	The Siren's Yearning
182	Unknown	Unknown	War Chant of Sith
183	Unknown	Unknown	Prayer
184	Unknown	Unknown	Righteous Wrath of the Faithful
185	Unknown	Unknown	Cat's Grace
186	Unknown	Unknown	Hope
187	Unknown	Unknown	Courage
188	Unknown	Enchanted Weapon	Unknown
189	Unknown	Spirit Ward	Spirit Ward
190	Unknown	Ether Gate	Ether Gate
191	Unknown	Shamanic Dance	Shamanic Dance
192	Unknown	Chaos of Battle	Repulsion
193	Unknown	Unknown	Increased Movement Rate
194	Unknown	Repulsion	Immunity: Abjuration
195	Unknown	Increased Movement Rate	Immunity: Conjuration
196	Unknown	Immunity: Abjuration	Immunity: Divination
197	Unknown	Immunity: Conjuration	Immunity: Enchantment
198	Unknown	Immunity: Divination	Immunity: Illusion
199	Unknown	Immunity: Enchantment	Immunity: Evocation
200	Unknown	Immunity: Illusion	Immunity: Necromancy
201	Unknown	Immunity: Evocation	Immunity: Alteration
202	Unknown	Immunity: Necromancy	Enchanted Weapon
203	Unknown	Immunity: Alteration	Static Charge
204	Unknown	Flaming Fists	Entropy Shield
205	Unknown	Frozen Fist	Shield of Lathander
206	Unknown	Armor of Faith	Greater Shield of Lathander
207	Unknown	Unknown	Beltyn's Burning Blood
208	Unknown	Unknown	Shroud of Flame
209	Unknown	Unknown	Antimagic Shell
210	Unknown	Unknown	Flaming Fists
211	Unknown	Unknown	Frozen Fist
212	Unknown	Unknown	Circle of Bones
213	Unknown	Unknown	Armor of Faith

Note: On non-EE games, the engine refuses to show portrait 79 (Imprisonment).

Note: In EE games, values 0 – 190 are drawn directly from "STATES.BAM" from sequences 65 – 255, but can be overridden in STATDESC.2DA. Additional values must be added to STATDESC.2DA.

#143 (0x8F) Item: Create Item in Slot Variants: IWD2 PST
Parameter #1: Slot
Parameter #2: Irrelevant

Description:

Creates the item specified by the resource key in the slot specified by the Slot field, on the targeted creature(s).
Known values for Slot (from SLOTS.IDS) are:

0 ⟶ AMULET
1 ⟶ ARMOR
2 ⟶ BELT
3 ⟶ BOOTS
4 ⟶ CLOAK
5 ⟶ GAUNTLETS
6 ⟶ HELMET
7 ⟶ RING_LEFT
8 ⟶ RING_RIGHT
9 ⟶ SHIELD
10 ⟶ FIST
11 ⟶ AMMO
15 ⟶ MISC
35 ⟶ WEAPON
11 ⟶ AMMO0
12 ⟶ AMMO1
13 ⟶ AMMO2
14 ⟶ AMMO3
15 ⟶ MISC0
16 ⟶ MISC1
17 ⟶ MISC2
18 ⟶ MISC3
19 ⟶ MISC4
20 ⟶ MISC5
21 ⟶ MISC6
22 ⟶ MISC7
23 ⟶ MISC8
24 ⟶ MISC9
25 ⟶ MISC10
26 ⟶ MISC11
27 ⟶ MISC12
28 ⟶ MISC13
29 ⟶ MISC14
30 ⟶ MISC15
31 ⟶ MISC16
32 ⟶ MISC17
33 ⟶ MISC18
34 ⟶ MISC19 – Magical Weapon slot
35 ⟶ WEAPON0
36 ⟶ WEAPON1
37 ⟶ WEAPON2
38 ⟶ WEAPON3

Important: The Magical Weapon Slot does not allow Item Abilities.
Moreover, unlike opcode #111, this opcode will not "equip" the item that's created in this particular slot.

Note: When using a non-permanent timing mode, it applies a delayed opcode #123 effect based on the duration, but with an empty resource field, resulting in nothing being removed.

#144 (0x90) Button: Disable Button Variants: BG1 IWD1 IWD2
Parameter #1: Irrelevant
Parameter #2: Button

Description:

Disabled the button specified by the Button field. The resource field acts as a matching key to the resource field of the Enable Button, allowing separate enable/disable reasons.
Known values for Button are:

0 ⟶ Stealth Button
1 ⟶ Thieving Skill Button
2 ⟶ Spell Select Button
3 ⟶ First Quick Spell Button
4 ⟶ Second Quick Spell Button
5 ⟶ Third Quick Spell Button
6 ⟶ Turn Undead Button
7 ⟶ Talk Button
8 ⟶ Use Item Button
9 ⟶ First Quick Item Button
10 ⟶ Bard Song Button (EE only)
11 ⟶ Second Quick Item Button
12 ⟶ Third Quick Item Button
13 ⟶ Innate Ability Button
14 ⟶ Find Traps Button
15 ⟶ Inventory Button (EE only)

#145 (0x91) Spell: Disable Spell Casting Abilities Variants: IWD2
Parameter #1: Irrelevant
Parameter #2: Spell Type
Special: Show message?

Description:

Disables spell casting abilities of the targeted creature(s), in the style specified by the Spell Type field.
Known values for Spell Type are:

0 ⟶ Disables wizard spells with location=spell (also applied by polymorph)
1 ⟶ Disables priest spells with location=spell (also applied by polymorph)
2 ⟶ Disables all innate spells (really any type except wizard/priest), regardless of location
3 ⟶ Disables only "magical" spells (those lacking Ignore dead/wild magic), regardless of type or location (EEs)

Known values for Show message? are:

0 ⟶ Yes
1 ⟶ No

#146 (0x92) Spell: Cast Spell (at Creature) Variants: IWD2 PST
Parameter #1: Casting Level
Parameter #2: Type

Description:

Casts the spell specified by the resource key at the level specified by the Casting Level field, in the style specified by the Type field. A Casting Level of 0 casts at the level of the casting creature.
Known values for Type are:

0 ⟶ Normal Casting at specified level (0 for caster level), non-interruptible
1 ⟶ Cast Instantly at caster level
2 ⟶ Cast Instantly at specified level (EE-only)

Important:

When this opcode gets reflected using Type=1, the spell specified by the resource key is cast at the target's Casting Level, not the caster's.
When this opcode gets reflected (opcode #197, opcode #198, opcode #199, opcode #202, opcode #203 and opcode #207) using Type=2, the spell specified by the resource key is cast at the specified Casting Level, and it will also affect the original target (as if it wasn't reflected).

Note:

When Type=2, effects in the resource will also bypass Magic Resistance, of every target, as if the caster targeted themselves, regardless of who they target with the spell or this effect.
- Setting the Ignore Center bit in the subspell's projectile will force its effects to check Magic Resistance on every target, even if the caster did target themselves. Though as its primary function is to cause the projectile to ignore the caster (not "center"), it still won't affect them if it's area-effect.

Note: If the target is a container, the Type parameter is ignored and treated as 0.

Info: See opcode #326 for some peculiarities of projectile behaviour for Type=2.

#147 (0x93) Spell: Learn Spell Variants: IWD2 PST BG1
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

The targeted creature(s) tries to learn the spell specified by the resource key.
Learning is successful when 1D100 <= the INT-dependent LEARN_SPELL value in INTMOD.2DA.
The LEARN_SPELL value is modified for mage specialists, with +15 for same school spells, and -15 for non-same school spells.

Note:

Wizard spell type uses INTMOD.2DA. Other Spell types automatically succeed, but report failure.
Wizard spell type can be level 1–9 if learned.
Priest spell type can be level 1–7 if learned.
Other Spell types can be level 1–32767 if learned.

#148 (0x94) Spell: Cast Spell (at Point)
Parameter #1: Casting Level
Parameter #2: Type

Description:

Casts the spell specified by the resource key, at the level specified by the Casting Level field, in the style specified by the Type field. A Casting Level of 0 casts at the level of the casting creature.
Known values for Type are:

0 ⟶ Normal Casting
1 ⟶ Cast Instantly (ignore Casting Level)

Note: This opcode does not work if the target is a container in non-ee versions.

Info: This opcode should generally target Self. In particular:

The projectile of the subspell will originate from the target(s) of opcode #148.
If the SPL/ITM with opcode #148 targets a location, and doesn't have an area-effect projectile, there will be no target to cast on.
If the SPL/ITM with opcode #148 has an area-effect projectile, the spell in opcode #148 would be cast once for every valid target.
If this opcode uses the Cast Instantly option, then the target, not the caster, would cast the spell in opcode #148.

#149 (0x95) (Identify)
Parameter #1: Undefined
Parameter #2: Undefined

Description:

The use of this effect is unknown, and effect of its parameters are undefined.

Note: It is still processed, so it will still interact with Spell Turning/Deflection/etc… just like any other effect.

#150 (0x96) Spell Effect: Find Traps
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Applies the find traps effect to the targeted creature(s).

Important: Both parameters should be 0 (zero).

Important: This effect is automatically successful, but can only find traps that are normally detectable by the Find Traps skill.

#151 (0x97) Summon: Replace Creature Variants: IWD2 PST
Parameter #1: Irrelevant
Parameter #2: Type

Description:

Replaces the targeted creature(s) with creature specified by the resource key, in the style specified by the Type value.
Known values for Type are:

0 ⟶ Remove targeted creature via opcode #168
1 ⟶ Kill targeted creature via opcode #13^*p2=8 (Chunking death)
2 ⟶ Kill targeted creature via opcode #13^*p2=4 (Normal death)
3 ⟶ No effect on targeted creature – New creature (specified by the resource key) is spawned at target's location

Note: Experience is given as normal for a kill (the party still has to be the one applying the effect to earn experience).

#152 (0x98) Spell Effect: Play Movie Variants: BG1 IWD1 IWD2 PST
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Plays the movie specified by the resource key.

BG2	TOB	All EE games	BG:EE	BG:SoD	BG2:EE
BISLOGO	INTRO	LOGO – WotC logo	DEATHAND – Death	SODCIN01 – Siege of Dragonspear Introduction	NITEDAY – Sunrise
BWDRAGON	MANAFORG		INTRO – Baldur's Gate: Enhanced Edition Introduction	SODCIN02 – Boarskyr Bridge	DAYNITE – Sunset
DAYNITE	MELISSAN		REST – Resting Outside	SODCIN03 – Murder	DEATHAND – Death
DEATHAND	OUTRO		RESTDUNG – Resting in Dungeon	SODCIN05 – Epilogue	INTRO15F – Shadows of Amn Intro
END15FPS	SARADUSH		RESTINN – Resting at Inn		FLYTHR01 – Asylum
ENDCRDIT	POCKETZZ		BGENTER – Entering Baldur's Gate		FLYTHR02 – Underdark
FLYTHR01			FRARMINN – Friendly Arm Inn		FLYTHR03 – Suldanessellar
FLYTHR02			NASHKELL – Nashkell		FLYTHR04 – Hell
FLYTHR03			CAMP – Bandit Camp		INTRO – Throne of Bhaal Intro
FLYTHR04			MINEFLOD – Flooding Cloakwood Mines		POCKETZZ – Pocket Plane Rest
INTRO15F			ELDRCITY – Undercity		SARADUSH – Saradush Flythrough
NITEDAY			ENDMOVIE – Epilogue		MANAFORG – Mana Forge Flythrough
RESTCAMP			ENDCRDIT – Credits		MELISSAN – Melissan's Demise
RESTDUNG			WRECK – Wrecked Ship (Werewolf Island)		OUTRO – Closing the Book
RESTINN			BLACKPIT – The Black Pits Introduction		HEXXATDR – Dragomyr's Crypt (Hexxat)
WOTC					DORNGORG – Resurrection Gorge (Dorn)
					DORNTREE – Ritual Circle (Dorn)
					NEERAES – Town Bell (Neera)
					RASAADMI – Sharran (Rasaad)
					RASAADTE – Temple (Rasaad)

#153 (0x99) Overlay: Sanctuary Variants: BG1
Parameter #1: Irrelevant
Parameter #2: Mode

Description:

Applies the sanctuary effect to the targeted creature(s).

Known values for Mode are:

0 ⟶ Default overlay, "SANCTRY.BAM"
1 ⟶ Custom overlay, Resource field: Animation file (VVC or BAM)

This effect sets SANCTUARY to 1.

Important: Both parameters should be 0 (zero).

#154 (0x9A) Overlay: Entangle Variants: BG1
Parameter #1: Irrelevant
Parameter #2: Mode

Description:

Applies the entangle visual effect to the targeted creature(s). Does not actually prevent the target from moving.

Known values for Mode are:

0 ⟶ Default overlay, "SPENTACI.BAM"
1 ⟶ Custom overlay, Resource field: Animation file (VVC or BAM)

This effect sets ENTANGLE to 1.

Important: Both parameters should be set to 0.

#155 (0x9B) Overlay: Minor Globe Variants: IWD2 BG1
Parameter #1: Irrelevant
Parameter #2: Mode

Description:

Applies the minor globe visual effect to the targeted creature(s).

Known values for Mode are:

0 ⟶ Default overlay, "MINORGLB.BAM"
1 ⟶ Custom overlay, Resource field: Animation file (VVC or BAM)

This effect sets MINORGLOBE to 1.

#156 (0x9C) Overlay: Protection from Normal Missiles Cylinder Variants: BG1
Parameter #1: Irrelevant
Parameter #2: Mode

Description:

Applies the protection from normal missiles cylinder visual effect to the targeted creature(s).

Known values for Mode are:

0 ⟶ Default overlay, "SPSHIELD.BAM"
1 ⟶ Custom overlay, Resource field: Animation file (VVC or BAM)

This effect sets SHIELDGLOBE to 1.

Important: Both parameters should be 0 (zero).

#157 (0x9D) State: Web Effect Variants: BG1
Parameter #1: Irrelevant
Parameter #2: Mode

Description:

Applies the web effect to the targeted creature(s). The affected creature becomes immobile and its AI scripts stop running.

Known values for Mode are:

0 ⟶ Default overlay, "WEBENTD.BAM"
1 ⟶ Custom overlay, Resource field: Animation file (VVC or BAM)

This effect sets HELD and WEB to 1. It also sets the STATE_HELPLESS flag.

Important: Both parameters should be 0 (zero).

Note: It cannot be removed by any of the stun/held removal opcodes.

#158 (0x9E) Overlay: Grease Variants: BG1
Parameter #1: Irrelevant
Parameter #2: Mode

Description:

Applies the grease visual effect to the targeted creature(s). Does not actually affect the target's movement rate.

Known values for Mode are:

0 ⟶ Default overlay, "GREASED.BAM"
1 ⟶ Custom overlay, Resource field: Animation file (VVC or BAM)

This effect sets GREASE to 1.

Important: Both parameters should be 0 (zero).

#159 (0x9F) Spell Effect: Mirror Image (Exact Number)
Parameter #1: Amount
Parameter #2: Irrelevant

Description:

Applies the mirror image effect to the targeted creature(s), creating a number of images equal to the Amount value. Sets STATE_MIRRORIMAGE to true.

Note:

STATE_MIRRORIMAGE will maintain the effects of this opcode, once this opcode expires, but only until you save & reload.
If you set STATE_MIRRORIMAGE on a CRE file, it won't do anything by itself.
If you later apply opcode #119/opcode #159 to the creature, once it expires, any remaining images will last until struck (absorbing attacks in the process), or until you save & reload.

#160 (0xA0) Remove Sanctuary Variants: IWD2
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Removes the sanctuary effect from the targeted creature(s).

Important: Both parameters should be 0 (zero).

#161 (0xA1) Cure: Horror
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Removes the horror effect from the targeted creature(s).
This effect ignores durations attributed to it.

#162 (0xA2) Cure: Hold Variants: PST
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Removes the paralysis effect (opcode #109 and opcode #175) from the targeted creature(s).

Important: This effect should be used with an instant timing mode.

#163 (0xA3) Protection: Free Action Variants: BG1
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Applies the free action effect to the targeted creature(s), restoring the creatures movement rate to its default value.
In particular, it only removes opcode #126 effects using param2 = 1 (Set value), if the creature's current movement rate is less than the default movement rate for its current animation (Haste/Slow are not factored in this).

Important: Does NOT remove Increment or Set % Value effects, nor any using the alternate movement rate opcode, opcode #176.

Note: Similarly affects opcode #177/opcode #283 effects if the EFF file is using the above values.

#164 (0xA4) Cure: Drunkeness
Parameter #1: Undefined
Parameter #2: Undefined

Description:

Clears the drunkeness stat (as modified by opcode #94).

#165 (0xA5) Spell Effect: Pause Target
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Applies the pause effect to the targeted creature(s).
In particular:

Their inventory is still access-able.
They are still select-able, and can be issued orders (for instance, activating modal abilities), though not all actions can be taken.
It does not interrupt/end modal abilities the creature is currently using.
They are not "helpless", an attack roll is still required to hit them.
Their scripts stop running.

This effect sets CasterHold to 1.

Important: Both parameters should be 0.

#166 (0xA6) Stat: Magic Resistance Modifier Variants: BG1 PST
Parameter #1: Statistic Modifier
Parameter #2: Type

Description:

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

0 ⟶ Cumulative Modifier: Resistance = Resistance + 'Statistic Modifier' value
1 ⟶ Flat Value Modifier: Resistance = 'Statistic Modifier' value

The effect modifies RESISTMAGIC.

#167 (0xA7) Stat: THAC0 Modifier with Missile Weapons Variants: IWD2 PST
Parameter #1: Statistic Modifier
Parameter #2: Type

Description:

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

0 ⟶ Cumulative Modifier: THAC0 = THAC0 + 'Statistic Modifier' value
1 ⟶ Flat Value Modifier: THAC0 = 'Statistic Modifier' value
2 ⟶ Percentage Modifier: THAC0 = (THAC0 * 'Statistic Modifier' value) / 100

#168 (0xA8) Summon: Remove Creature Variants: PST
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Moves the targeted creature(s) to area ".ARE" (a non-existent area). Also known as Script: Destroy Self.

This deletes non-global creatures from the game (most common usage).

For Global Creatures:

This effect removes the creature from the player's party (if they were in it).
The effect will keep the creature out of the party and any other Area for its duration, but does not re-instate the creature once it expires.
They can still be recovered through script actions once the effect expires.

Important: Both parameters should be 0 (zero).

#169 (0xA9) Graphics: Prevent Special Effect Icon Variants: BG1 IWD1 IWD2
Parameter #1: Irrelevant
Parameter #2: Icon

Description:

Prevents the icon specified by the Icon field from being displayed.
All values are drawn directly from "STATES.BAM" in the "GUIBam.bif" starting at sequence 65.
Known values for Icon are: see opcode #142.

Important: Only blocks opcode #142 effects with a matching param2 value. Cannot block portrait icons generated by any other mechanic.

Note: In EE games, can also block opcode #177/opcode #283 effects if their EFF file uses opcode #142 with a matching param2 value.

#170 (0xAA) Graphics: Play Damage Animation Variants: PST
Parameter #1: Irrelevant
Parameter #2: Animation

Description:

Plays the damage animation specified by the Animation field.
It just plays a visual effect, like a far more limited version of opcode #215, and is always instantaneous.
Known values for Animation are:

0 ⟶ Blood (behind)
- (EEs) Doesn't display any animation.
1 ⟶ "BLOODS.BAM" Blood (small)
2 ⟶ "BLOODM.BAM" Blood (medium)
3 ⟶ "BLOODL.BAM" Blood (large)
4 ⟶ "SPFIRIMP.BAM" Fire 1
5 ⟶ "SPFIRIMP.BAM" Fire 2
6 ⟶ "SPFIRIMP.BAM" Fire 2
7 ⟶ "SPSHKIMP.BAM" Electricity 1
8 ⟶ "SPSHKIMP.BAM" Electricity 2
9 ⟶ "SPSHKIMP.BAM" Electricity 3

Info: On EE games:

For Animation=4/5/6 and Animation=7/8/9, this opcode actually pulls the animation from DMGTYPES.2DA, each playing both ANIMATION1 (those listed above) and ANIMATION2, for FIRE and ELECTRICITY, respectively. Does not play the SOUND associated with them though.
- ANIMATION1 is the initial animation, ANIMATION2 is the lingering animation.
BGEE/BG2EE use the default * (hardcoded) entries for all damage types, but they can be overridden by setting entries in DMGTYPES.2DA, as IWDEE does.
The animations for Animation=1/2/3 are not pulled from DMGTYPES.2DA, they're most likely fully hardcoded.

#171 (0xAB) Spell: Give Ability Variants: PST
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Gives the SPL specified by the resource key to the targeted creature(s).

Note:

Wizard spell type can be level 1–9 if gained.
Priest spell type can be level 1–7 if gained.
Other Spell types can be level 1–32767 if gained.

#172 (0xAC) Spell: Remove Spell Variants: BG1 IWD1
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Removes the SPL specified by the resource key from the targeted creature(s) spellbook.

If the key is not 8 characters long, all memorized copies will be removed.
If the key is 8 characters, memorized copies will remain intact.

Important: Both parameters should be 0 (zero). Two 8 characters long keys that are identical up to the 7^th character are indistinguishable!

#173 (0xAD) Stat: Poison Resistance Modifier
Parameter #1: Statistic Modifier
Parameter #2: Irrelevant

Description:

Modifies the Poison Resistance of the target creature(s) to the value specified by Statistic Modifier.

The effect modifies RESISTPOISON.

Warning: In EE v2.3 and prior, including the originals, this opcode always “Set” Poison Resistance; in v2.5 and later, it always “increments” Poison Resistance (it stacks).

Also known as "Stat: Set Poison Resistance".

#174 (0xAE) Spell Effect: Play Sound Effect Variants: BG1 IWD1 PST
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Plays the sound effect specified by the resource key.
Known Sound Effects are:

EFF_E01 ⟶ Expire Illusionary Spell
EFF_E02 ⟶ Expire Abjuration Spell
EFF_E03 ⟶ Expire Conjuration Spell
EFF_E04 ⟶ Expire Divination Spell
EFF_E05 ⟶ Expire Enchantment Spell
EFF_E06 ⟶ Expire Invocation Spell
EFF_E07 ⟶ Expire Necromancy Spell
EFF_E08 ⟶ Expire Alteration Spell
EFF_M02 ⟶ Wizard Abjuration Spell Effect
EFF_M03 ⟶ Wizard Conjuration Spell Effect
EFF_M04 ⟶ Wizard Divination Spell Effect
EFF_M05 ⟶ Wizard Enchantment Spell Effect
EFF_M07 ⟶ Wizard Necromancy Spell Effect
EFF_M08 ⟶ Wizard Alteration Spell Effect
EFF_M09 ⟶ Dimension Door
EFF_M10 ⟶ Dispel, Expire Illusionary Spell Effect
EFF_M11A ⟶ Expire Protection from Petrification
EFF_M11B ⟶ Expire Protection from Normal Missiles
EFF_M11C ⟶ Protection from Normal Missiles
EFF_M12A ⟶ Minor Globe Spell Effect
EFF_M12B ⟶ Expire Minor Globe Spell Effect
EFF_M13 ⟶ Monster Summoning
EFF_M15 ⟶ Wizard Hold Person/Undead/Monster
EFF_M16 ⟶ Confusion Spell Effect
EFF_M18D ⟶ Melf's Acid Arrow
EFF_M20 ⟶ Melf's Minute Meteors Impact
EFF_M20 ⟶ Fireball Impact
EFF_M26 ⟶ Animate Dead
EFF_M28 ⟶ Haste
EFF_M29 ⟶ Slow
EFF_M31A ⟶ Grease Area Effect Duration
EFF_M31B ⟶ Grease Start Area Effect
EFF_M31C ⟶ Grease Affect Creature
EFF_M32 ⟶ Blur
EFF_M33 ⟶ Wizard Illusionary Spell Effect
EFF_M34 ⟶ Ice Storm
EFF_M35 ⟶ Tree of Life Parasite Destruction
EFF_M36 ⟶ Viekang Teleport
EFF_M36A ⟶ Skull Trap (untriggered)
EFF_M36B ⟶ Skull Trap shatter
EFF_M38 ⟶ Teleport Without Error
EFF_M41 ⟶ Disintegrate dust
EFF_M38 ⟶ ic Armor
EFF_M52 ⟶ Protection from Acid/Cold/Electricity/Fire
EFF_M53 ⟶ Spell Protection Removal
EFF_M55 ⟶ Weapon Protection Effect (e.g. Mantle, etc.)
EFF_M58 ⟶ Melf's Minute Meteors creation
EFF_M59 ⟶ Fire
EFF_M60 ⟶ Stoneskin
EFF_M61 ⟶ Polymorph/Shapeshift
EFF_M68 ⟶ Melf's Acid Arrow Impact
EFF_M69 ⟶ Improved Alacrity/Use Any Item
EFF_M70 ⟶ Cacofiend, Gate, Summon Fiend
EFF_M71 ⟶ Power Word: Blind, Kill, Silence, Sleep, Stun
EFF_M71B ⟶ Wizard Conjure Elemental Mental Combat
EFF_M71C ⟶ Wizard Conjure Elemental Mental Combat (Won)
EFF_M71D ⟶ Wizard Conjure Elemental Mental Combat (Lost)
EFF_M73 ⟶ Summon Hakeashar, Nishruu
EFF_M74 ⟶ Imprisonment, Maze 1
EFF_M74B ⟶ Imprisonment, Maze 2
EFF_M76 ⟶ True Sight/Seeing
EFF_M77 ⟶ Wizard Eye
EFF_M79 ⟶ Spook
EFF_M80 ⟶ Mislead, Project Image, Simulacrum
EFF_M82 ⟶ Emotion, Greater Malison, Resist Magic
EFF_M86 ⟶ Contingency & Sequencer -type spells
EFF_M87 ⟶ Wizard Rapture of the Father
EFF_M89 ⟶ Wail of the Banshee
EFF_M90 ⟶ Timestop (Start)
EFF_M91 ⟶ Timestop (Expire)
EFF_M92 ⟶ Mirror Image/Priest Illusionary Spell Effect
EFF_M108 ⟶ Dragon's Breath
EFF_M110 ⟶ Bigby's Hand Spells
EFF_P01 ⟶ Priest Abjuration Spell Effect
EFF_P02 ⟶ Priest Conjuration Spell Effect
EFF_P03 ⟶ Priest Divination Spell Effect
EFF_P04 ⟶ Priest Enchantment Spell Effect
EFF_P05 ⟶ Priest Invocation Spell Effect
EFF_P06 ⟶ Priest Necromancy Spell Effect
EFF_P07 ⟶ Priest Alteration Spell Effect
EFF_P08 ⟶ Animal Summoning
EFF_P11 ⟶ Hold Animal/Person (Priest)
EFF_P12 ⟶ Protection from Evil/Magic Energy/The Elements/Energy
EFF_P13 ⟶ Miscast Magic
EFF_P14 ⟶ ic Vitriolic Sphere
EFF_P15 ⟶ ic Recitation
EFF_P16 ⟶ Flame Strike
EFF_P18 ⟶ Raise Dead
EFF_P19 ⟶ Call Lightning
EFF_P21A ⟶ Sanctuary Start
EFF_P21B ⟶ Sanctuary Duration
EFF_P21C ⟶ Sanctuary Expire
EFF_P22A ⟶ Glyph of Warding non-triggered
EFF_P22B ⟶ Glyph of Warding Shatter
EFF_P24 ⟶ BG1 Armor/Shield
EFF_P25 ⟶ Restoration (Lesser, Greater) casting completion
EFF_P40 ⟶ Free Action
EFF_P43 ⟶ Cloak of Fear start/Nature's Beauty
EFF_P51 ⟶ Remove Fear
EFF_P54 ⟶ Shillelagh, Spiritual Hammer
EFF_P55 ⟶ Silence 15' radius
EFF_P56 ⟶ Barkskin
EFF_P60 ⟶ Aid
EFF_P61 ⟶ Ironskins
EFF_P64A ⟶ Creature Summoning Flash
EFF_P65 ⟶ Creature Summoning Circle
EFF_P66 ⟶ Call Woodland Beings
EFF_P69 ⟶ Unholy Word
EFF_P70 ⟶ Holy Word
EFF_P72 ⟶ Command Word
EFF_P73 ⟶ Charm/Domination
EFF_P76 ⟶ Flameblade
EFF_P77 ⟶ Spiritual Hammer Hit
EFF_P80 ⟶ Blade Barrier Creation
EFF_P83 ⟶ Bolt of Glory
EFF_P89 ⟶ Restoration (Greater, Lesser)
EFF_P90 ⟶ Regeneration
EFF_P92 ⟶ Earthquake
EFF_P93 ⟶ Cause Wounds
EFF_P97 ⟶ Armor of Faith wings
EFF_P115 ⟶ Implosion
EFF_P116 ⟶ Conjure Fallen Deva/Planetar
EFF_P117 ⟶ Conjure Deva/Planetar

#175 (0xAF) State: Hold Variants: BG1 IWD2 IWD1
Parameter #1: IDS Entry
Parameter #2: IDS File

Description:

Applies a yellow fade in graphic effect to the targeted creature(s), and shows the 'Held' icon, if the targeted creature(s) match the value specified by the IDS Entry field, in the specified IDS File. The affected creature becomes immobile and its AI scripts stop running.
Known values for IDS File are:

2 ⟶ EA.IDS
3 ⟶ GENERAL.IDS
4 ⟶ RACE.IDS
5 ⟶ CLASS.IDS
6 ⟶ SPECIFIC.IDS
7 ⟶ GENDER.IDS
8 ⟶ ALIGN.IDS
9 ⟶ KIT.IDS (EE only)

This effect sets HELD to 1. It also sets the STATE_HELPLESS flag.

Note: At least in EEs, this opcode automatically displays string STRREF_EFFECT_HOLD in the combat log. It even overrides the entries in EFFTEXT.2DA.

#176 (0xB0) Stat: Movement Modifier (II)
Parameter #1: Statistic Modifier
Parameter #2: Type

Description:

(As opcode #126, but unaffected by Free Action).
Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
The engine allows values for Statistic Modifier from 0 (immobile) to 255 (instantaneous), though behaviour is only consistent in the range 0 – 30.
Known values for Type are:

0 ⟶ Cumulative Modifier: Movement = Movement + 'Statistic Modifier' value
1 ⟶ Flat Value Modifier: Movement = 'Statistic Modifier' value
2 ⟶ Non-stacking Percentage Modifier: Movement = (Movement * 'Statistic Modifier' value) / 100
5 ⟶ Multiplicative Stacking Percentage Modifier: Movement = (Movement * 'Statistic Modifier' value) / 100 (EE only)

Warning: PST: This effect doesn’t exist and always crashes the game.

Info: A couple of examples about Multiplicative Stacking Percentage Modifier:

50% * 50% = 25%
150% * 150% = 225%

#177 (0xB1) Use EFF File
Parameter #1: IDS Entry
Parameter #2: IDS File

Description:

Applies the EFF file specified by the resource key to the targeted creature(s), if the targeted creature(s) match the value specified by the IDS Entry field, in the specified IDS File.
NB. When using an eff to alter thac0/dmg bonus, set param1 = 0, and param2 = 2.
Known values for IDS File are:

2 ⟶ EA.IDS
3 ⟶ GENERAL.IDS
4 ⟶ RACE.IDS
5 ⟶ CLASS.IDS
6 ⟶ SPECIFIC.IDS
7 ⟶ GENDER.IDS
8 ⟶ ALIGN.IDS
9 ⟶ KIT.IDS (EE only)

Warning: This effect causes a crash if used by a container
PST: This effect doesn’t exist and always crashes the game.
IWD2: there was a note to not use this effect in older IESDP.

Important: EFF files applied by this opcode can be blocked by opcode #101.

#178 (0xB2) Spell Effect: THAC0 vs. Creature Type Modifier Variants: PST BG1
Parameter #1: IDS Entry
Parameter #2: IDS File
Special: Statistic Modifier

Description:

Alters the targeted creature(s) THAC0 against the creature type specified by the IDS Entry field in the specified IDS File.
The actual modifier value is placed in the Parameter3 field in an external effect.
Known values for IDS File are:

2 ⟶ EA.IDS
3 ⟶ GENERAL.IDS
4 ⟶ RACE.IDS
5 ⟶ CLASS.IDS
6 ⟶ SPECIFIC.IDS
7 ⟶ GENDER.IDS
8 ⟶ ALIGN.IDS
9 ⟶ KIT.IDS (EE only; broken at least in 2.5)

Note:

It will affect all attacks, not just the weapon it's on, which would be incorrect when dual-wielding.
Multiple opcode #178 effects only allow additional targeting, they do not stack their THAC0 bonus.

Note: This opcode uses a reverse stacking order: the “oldest” effect with matching IDS values for the target is used, not the most recent, and equipped effects take priority over non-equipped effects.

#179 (0xB3) Spell Effect: Damage vs. Creature Type Modifier Variants: PST BG1
Parameter #1: IDS Entry
Parameter #2: IDS File
Special: Statistic Modifier

Description:

Alters the targeted creature(s) damage against the creature type specified by the IDS Entry field in the specified IDS File. The actual modifier value is placed in the Parameter3 field in an external EFF – dice values are ignored.
Known values for IDS File are:

2 ⟶ EA.IDS
3 ⟶ GENERAL.IDS
4 ⟶ RACE.IDS
5 ⟶ CLASS.IDS
6 ⟶ SPECIFIC.IDS
7 ⟶ GENDER.IDS
8 ⟶ ALIGN.IDS
9 ⟶ KIT.IDS (EE only; broken at least in 2.5)

Note:

It will affect all attacks, not just the weapon it's on, which would be incorrect when dual-wielding.
For two-handed/ranged weapons, it can be ideal if a base weapon damage bonus is desired.
Damage is multiplied by critical hits (and maybe backstabs).
Multiple opcode #179 effects only allow additional targeting, they do not stack their damage bonus.

Note: This opcode uses a reverse stacking order: the “oldest” effect with matching IDS values for the target is used, not the most recent, and equipped effects take priority over non-equipped effects.

#180 (0xB4) Item: Can't Use Item Variants: IWD2 PST
Parameter #1: String Reference
Parameter #2: Undefined

Description:

The targeted creatures(s) cannot use the item specified by the resource key. The strref specified by the String Reference field is displayed when an attempt to use the item is made.

#181 (0xB5) Item: Can't Use Itemtype Variants: BG1 BG2 IWD1 IWD2 PST
Parameter #1: Item Type
Parameter #2: Restriction
Special: Description note

Description:

The targeted creature(s) cannot use the item type specified by the Item Type field for the purpose specified by the Restriction field.
Known values for Restriction are:

0 ⟶ Equip
1 ⟶ Use

The message defined in Description note will be displayed whenever this effect is triggered.

#182 (0xB6) Use EFF file if/while item resource equipped Variants: BG1
Parameter #1: Unused
Parameter #2: Unused

Description:

This opcode is supposed to apply the EFF file specified in resource2 if the target has the ITM file specified in resource equipped.

Since the EFF resource is specified in resource2, this opcode must be used in V2 (external) effects.

Bug: This opcode is bugged.

The internal function it uses to find the item, CGameSprite::FindItemPersonal(), treats the found slot‐index as a boolean, so it always applies the EFF unless the ITM is in SLOT_AMULET.
- Basically, since all slot indices but SLOT_AMULET are strictly greater than 0, the function will almost always return true, making the opcode useless.
Additionally, CGameSprite::FindItemPersonal() doesn't consider SLOT_MISC19 (the Magical Weapon slot, used by opcode #111) as an "equipped" slot (this is probably intentional though...)

Important: EFF files applied by this opcode bypass / ignore opcode #101.

#183 (0xB7) Item: Apply Effect Itemtype Variants: IWD2 PST
Parameter #1: Undetermined
Parameter #2: Type

Description:

Applies the EFF file specified by the resource key to the targeted creature(s) when an ITM of the item type specified by the Type field is equipped.

Important: EFF files applied by this opcode bypass / ignore opcode #101.

Note:

Ammo (i.e., Arrows, Bullets and Bolts) does not work well with this opcode
- The Ammo Slots (SLOT_AMMO, SLOT_AMMO1, SLOT_AMMO2, SLOT_AMMO3) are always "Equipped", even when they are not in use
  - In other words: they trigger opcode #183 just by being in a quiver slot, regardless of whether the correct launcher is equipped or even active
    - Having said that, this opcode currently allows detecting a launcher using its automated ammo (such as Shortbow of Gesen)
The offhand (SLOT_SHIELD) has the same issue — even when disabled, it's detected by this opcode as equipped

Warning: This effect has never been seen to work. This is not true for EE games.

#184 (0xB8) Graphics: Passwall (Don't Jump)
Parameter #1: Undefined
Parameter #2: Jump

Description:

Allows creatures to be placed in impassable areas, based on the value of the Jump field.
Known values for Jump are:

0 ⟶ Do Jump from impassable areas
1+ ⟶ Don't Jump from impassable areas

Warning: PST: This effect doesn’t exist and always crashes the game.
IWD2: Don’t use.

#185 (0xB9) State: Hold (II) Variants: BG1 IWD2 PST
Parameter #1: IDS Entry
Parameter #2: IDS File

Description:

Applies a yellow fade in graphic effect to the targeted creature(s), and shows the 'Held' icon, if the targeted creature(s) match the value specified by the IDS Entry field, in the specified IDS File. The affected creature becomes immobile and its AI scripts stop running.
This effect is not removed by opcode #162.
Known values for IDS File are:

2 ⟶ EA.IDS
3 ⟶ GENERAL.IDS
4 ⟶ RACE.IDS
5 ⟶ CLASS.IDS
6 ⟶ SPECIFIC.IDS
7 ⟶ GENDER.IDS
8 ⟶ ALIGN.IDS
9 ⟶ KIT.IDS (EE only)

This effect sets HELD to 1. It also sets the STATE_HELPLESS flag.

Note: At least in EEs, this opcode automatically displays string STRREF_EFFECT_HOLD in the combat log. It even overrides the entries in EFFTEXT.2DA.

#186 (0xBA) Script: MoveToArea Variants: PST
Parameter #1: Delay
Parameter #2: Orientation

Description:

Marks the targetted creature(s) as travelling to the area specified by the resource key. The creature appears in the specified area after a delay (specified by the Delay field), with the orientation specified by the Orientation field.
In particular:

Global Creatures ignore the delay.
If the creature is already in the specified area, it will ignore the delay.
Non-global creatures currently in a different area than specified will use the delay.
Delay is measured in ¹⁄₃₀ seconds, (½ tick), 600 = 20 seconds.
On non-EE games, the creature appears at the point specified by the Target Point fields (external EFF files only).
- On EE games, target(s) appear at Caster's Coordinates in new area (it does not seem to be possible to override through EFFs).
Creature is moved to the new area (instantly) and flagged Moving Between Areas until their delay expires (if it's used). It won't be active until the delay expires (it's hidden, cannot be affected by Area-effect, doesn't occupy space). It can still be targeted by the various Everyone targeting modes in the new area while it's still inactive, but similar to maze/imprisonment, effects won't trigger (including poison and similar) on them until they become active.

Warning: IWD2: there was a note to not use this effect in older IESDP.
There is some confusion whether the Target (bg1, iwds) or the Caster point field is used.

Important: Avoid saving during the delay (can lead to lost NPCs or crashes if you load while NPC's are still in transition).

#187 (0xBB) Script: Store Local Variable Variants: BG1 PST
Parameter #1: Value
Parameter #2: Irrelevant

Description:

This effect sets the variable specified by the Variable Name field to the value specified by the Value field.

Important: This effect can only be used in an external effect (CRE/EFF file).

Info: This effect is always instantaneous (local variables are stored internally, not as effects, while the game is running). All local variables for a CRE are stored as opcode #187 effects on that CRE whenever the game is saved, which will trigger as soon as the game is loaded.

#188 (0xBC) Spell Effect: Aura Cleansing Variants: PST
Parameter #1: Irrelevant
Parameter #2: Stat Value

Description:

While ON, the creature displays string STRREF_FEEDBACK_AURA_CLEANSED (EE games only) whenever they begin to cast a spell before their aura would normally clear (i.e. more than once/round). Does NOT affect item usage, only spellcasting.
Set the Stat Value field to any non-zero value if you want no time needed between spells.

The effect modifies AURACLEANSING to Stat Value.

Note: The Stat Value parameter can take any value. If you set it to 0, you will disable the effect (for its duration).

#189 (0xBD) Stat: Casting Time Modifier Variants: BG1 PST
Parameter #1: Speed Modifier
Parameter #2: Type

Description:

Alters the Casting Time of spells by the value specified by the Speed Modifier field. This effect is cummulative.
This effect sets MENTALSPEED to Speed Modifier. Known value for Type are:

0 ⟶ Increment by Speed Modifier
- Positive values decrease the casting time, negative values increase the casting time.
1 ⟶ Set casting time of every spell to Speed Modifier
- Negative values set casting time to 0
2 ⟶ Set casting time of spells with casting time higher than Speed Modifier to Speed Modifier
- Other spells are unaffected.

Note: Type=2 was tested only for BGEE and might not work on non-EE.

#190 (0xBE) Stat: Attack Speed Factor Variants: PST
Parameter #1: Speed Modifier
Parameter #2: Irrelevant

Description:

Alters the weapon's attack speed by the value specified by the Speed Modifier field. This effect is not cumulative. Attack speed ranges from 0 (good) to 10 (bad). This effect acts as a bonus, so a high Speed Modifier is good.
This effect sets PHYSICALSPEED to Speed Modifier.

#191 (0xBF) Spell: Casting Level Modifier Variants: BG2 IWD1 PST
Parameter #1: Modifier
Parameter #2: Type

Description:

Applies the value specified by the Modifier field as a bonus to casting spell levels, of a type specified by the Type field.
Known values for Type are:

0 ⟶ Mage
1 ⟶ Cleric

This effect modifies CASTINGLEVELBONUSMAGE or CASTINGLEVELBONUSCLERIC depending on Type.

#192 (0xC0) Spell Effect: Find Familiar Variants: IWD1 PST
Parameter #1: Irrelevant
Parameter #2: Upgrade Marker

Description:

Applies opcode #195, opcode #196, and opcode #268 to the summoned familiar.
The Familiar summoned is based on the alignment of the Protagonist and values stored in the GAM file (non-EE games) or FAMILIAR.2DA (EE games).
On non-EE games, the Upgrade Marker field is used internally to indicate the familiar has received the ToB upgrades.

On EE games, if there is an Upgrade Marker, it isn't on opcode #192 (needs researching...).

On non-EE games, default creatures for familiars are:

Lawful Good ⟶ Pseudo Dragon (FAMPSD)
Lawful Neutral ⟶ Ferret (FAMFER)
Lawful Evil ⟶ Imp (FAMIMP)
Neutral Good ⟶ Pseudo Dragon (FAMPSD)
True Neutral ⟶ Rabbit (FAMRAB)
Neutral Evil ⟶ Dust Mephit (FAMDUST)
Chaotic Good ⟶ Fairy Dragon (FAMFAIR)
Chaotic Neutral ⟶ Cat (FAMCAT)
Chaotic Evil ⟶ Quasit (FAMQUAS)

Info: The familiars (CRE) available are locked in once a new game begins (any changes to FAMILIAR.2DA must occur before starting a new game).

Info: Max HP boost for summoning a familiar (and eventually loss when it dies) is ½ the familiar’s Max HP (including any CON bonus) at the time of summoning.

Note: The familiar restriction to <CHARNAME> is game-specific. IWDEE has no such restriction, but still only allows a single character to have a familiar at a time. It’s unclear if it’s a specific flag in the GAM file or if it’s engine-side.

#193 (0xC1) Spell Effect: Invisible Detection by Script Variants: IWD2 PST
Parameter #1: Irrelevant
Parameter #2: Stat Value

Description:

Allows invisible creatures to be attacked (via scripts) and makes it possible to target improved invisible creatures with spells.

The effect modifies SEEINVISIBLE to Stat Value.

Note: The Stat Value parameter can take any value. If you set it to 0, you will disable the effect (for its duration).

#194 (0xC2) Ignore Dialog Pause Variants: IWD1 IWD2 PST
Parameter #1: Irrelevant
Parameter #2: Stat Value

Description:

Allows the targeted creature(s) to carry on their actions during dialogs which pause action.

The effect modifies IGNOREDIALOGPAUSE to Stat Value.

Note: The Stat Value parameter can take any value. If you set it to 0, you will disable the effect (for its duration).

#195 (0xC3) Spell Effect: Death Dependent Constitution Loss (Familiar Bond) Variants: IWD1 PST
Parameter #1: Max HP Modifier
Parameter #2: Unused
Parameter #3: Master ID (owner)

Description:

When this creature dies, the following is applied to Master ID:

Floats Text String STRREF_GUI_MIXED_FAMILIARDIED.
Opcode #10: Statistic Modifier = -1, Type = 0, Timing Mode 1.
Opcode #18: Statistic Modifier = Max HP Modifier, Type = 0, Timing Mode 1.
- Opcode #192 sets Max HP Modifier to -½ the familiar's Max HP
Opcode #12: Damage Amount = 'this creature's Max HP', Type = MAGIC, Timing Mode 1, Save Type = Bypass Mirror Image.
- Normally, Maximum HP of Master ID is lowered by Max HP Modifier, and Current HP is lowered by twice Max HP Modifier (since Max Hp Modifier = ½ familiar's Max HP).
  It won't be if the familiar's Max HP is increased (or decreased) permanently after it is summoned (temporary changes to Max HP will be removed by death before it deals damage, and so they won't affect the amount).
  Permanent changes to the familiar's Constitution, enough to alter the bonus HP it grants, will have similar results.

Known values for Master ID are:

-1 ⟶ Not Party Member
0 ⟶ Player1
1 ⟶ Player2
2 ⟶ Player3
3 ⟶ Player4
4 ⟶ Player5
5 ⟶ Player6

Important: Needs Timing Mode 9, otherwise it will be removed (by death) before it fully triggers.

Note: Parameter2 is possibly intended to be Damage Type. It uses the same format as opcode #12 (opcode #192 sets it to 0x400000 – MAGIC), but changing it has no effect.

#196 (0xC4) Spell Effect: Familiar Block Variants: IWD1 PST
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

If this effect is found on any creature in the GAM file, the engine will block summoning of more familiars.

Important: The effect should be set with a Timing Mode of 9.

#197 (0xC5) Spell: Bounce (by Impact Projectile) Variants: IWD1 IWD2 PST
Parameter #1: Irrelevant
Parameter #2: Impact Projectile

Description:

The targeted creature(s) will reflect effects whose Projectile is equal to the one specified by the Impact Projectile field back to the attacker.

V1 effects inherit their Projectile from the Extended Header (SPL / ITM), V2 effects specify it manually.

Values for Impact Projectile are taken from PROJECTL.IDS.

Important:

Area-Effect projectiles only impact through their explosion and/or secondary projectiles, so they are what must be specified in Impact Projectile.
Opcode #333, opcode #326 and opcode #146^*p2=2 are NOT properly reflected by this opcode – the spell specified by their resource key will affect the original target (as if it wasn't reflected).

Info:

CANNOT reflect effects of Secondary Type MagicAttack.
- V1 effects inherit their Secondary Type from the Header(SPL) / Extended Header(ITM), V2 effects specify it manually.
CAN reflect EFF files with resist_dispel = BIT2.
- Keep in mind that this BIT is automatically set on any effect delivered by an Area-Effect (Explosion) projectile, so this opcode can reflect effects through AoE projectiles.
CANNOT reflect effects from self.
Maintains animation SPTURNI2 on the target, can be suppressed by opcode #291.

Note: EFF files delivered by opcode #177/opcode #283 will interact with Reflection separately from the opcode #177/opcode #283 effect that applies them, and only if that opcode #177/opcode #283 effect already got through. If the opcode #177/opcode #283 effect is reflected, then the values in the EFF file won’t matter. Most vanilla EFF files have these fields set to empty/zero to avoid interacting with this opcode.

#198 (0xC6) Spell: Bounce (by Opcode) Variants: IWD1 IWD2 PST
Parameter #1: Irrelevant
Parameter #2: Opcode

Description:

The targeted creature(s) will reflect effects containing the opcode specified by the Opcode field.

Warning: This can cause a crash if two creatures end up reflecting to each other.

Important: Opcode #333, opcode #326 and opcode #146^*p2=2 are NOT properly reflected by this opcode – the spell specified by their resource key will affect the original target (as if it wasn't reflected).

Info:

CANNOT reflect effects of Secondary Type MagicAttack.
- V1 effects inherit their Secondary Type from the Header(SPL) / Extended Header(ITM), V2 effects specify it manually.
CAN reflect EFF files with resist_dispel = BIT2.
- Keep in mind that this BIT is automatically set on any effect delivered by an Area-Effect (Explosion) projectile, so this opcode can reflect effects through AoE projectiles.
CANNOT block effects from self.
Maintains portrait icon Spell Deflection on the target (this is likely a bug).
Maintains animation SPTURNI2 on the target, can be suppressed by opcode #291.

Note: EFF files delivered by opcode #177/opcode #283 will interact with Reflection separately from the opcode #177/opcode #283 effect that applies them, and only if that opcode #177/opcode #283 effect already got through. If the opcode #177/opcode #283 effect is reflected, then the values in the EFF file won’t matter. Most vanilla EFF files have these fields set to empty/zero to avoid interacting with this opcode.

#199 (0xC7) Spell: Bounce (by Power Level) Variants: IWD1 IWD2 PST
Parameter #1: Power Level
Parameter #2: Irrelevant

Description:

The targeted creature(s) will reflect effects whose Power attribute is equal to the one specified by the Power Level field (range: 0 – 9).

Important: Opcode #333, opcode #326 and opcode #146^*p2=2 are NOT properly reflected by this opcode – the spell specified by their resource key will affect the original target (as if it wasn't reflected).

Info:

CANNOT block effects of Secondary Type MagicAttack.
- V1 effects inherit their Secondary Type from the Header(SPL) / Extended Header(ITM), V2 effects specify it manually.
CANNOT block EFF files with resist_dispel = BIT2.
- Keep in mind that this BIT is automatically set on any effect delivered by an Area-Effect (Explosion) projectile, so this opcode cannot reflect effects through AoE projectiles.
CANNOT block effects from self.
Maintains portrait icon Spell Deflection on the target (this is likely a bug).

Note: EFF files delivered by opcode #177/opcode #283 will interact with Reflection separately from the opcode #177/opcode #283 effect that applies them, and only if that opcode #177/opcode #283 effect already got through. If the opcode #177/opcode #283 effect is reflected, then the values in the EFF file won’t matter. Most vanilla EFF files have these fields set to empty/zero to avoid interacting with this opcode.

#200 (0xC8) Spell: Bounce (by Power level, decrementing) Variants: IWD1 IWD2 PST
Parameter #1: Total Amount
Parameter #2: Power Level

Description:

The targeted creature(s) will reflect a number of effects (specified by the Total Amount field) whose Power attribute is equal to the one specified by the Power Level field (range: 0 – 9).

The Power level of the first effect to trigger any instance of this opcode's reflection will determine how much this opcode's Total Amount is decremented. Every instance of this opcode on the creature will be decremented by this amount.

Example – Minor Spell Turning applies opcode #200 4 times, with parameter2 = (1, 2, 3, and 4), and parameter1 based on caster level. If any of them trigger, all of them will be decremented by the same amount. It doesn't matter that they come from the same spell. If you cast both Spell Turning and Minor Spell Turning, all instances of opcode #200 from both spells would be decremented, even if the spell(effect) triggering it was level 5–9 (above what Minor Spell Turning can reflect).

On EE games, resource field ⟶ Spell cast when this effect self-terminates, default = Parent + "B".

Important: As of EE v2.6, spells can no longer be "chained" back and forth by reflection.

If Caster and Target are both affected by this opcode, the spell from Caster will reflect off Target, but not reflect back off Caster. Previously, whoever had more reflection charges would end up victorious, now the initial target always ends up victorious.

Info:

CANNOT block effects of Secondary Type MagicAttack.
- V1 effects inherit their Secondary Type from the Header(SPL) / Extended Header(ITM), V2 effects specify it manually.
CANNOT block EFF files with resist_dispel = BIT2.
- Keep in mind that this BIT is automatically set on any effect delivered by an Area-Effect (Explosion) projectile, so this opcode cannot reflect effects through AoE projectiles.
CANNOT block effects from self.
Maintains portrait icon Spell Turning on the target.
Maintains animation SPTURNI2 on the target, can be suppressed by opcode #291.

Note: EFF files delivered by opcode #177/opcode #283 will interact with Reflection separately from the opcode #177/opcode #283 effect that applies them, and only if that opcode #177/opcode #283 effect already got through. If the opcode #177/opcode #283 effect is reflected, then the values in the EFF file won’t matter. Most vanilla EFF files have these fields set to empty/zero to avoid interacting with this opcode.

#201 (0xC9) Spell: Immunity (by Power Level, decrementing) Variants: IWD1 IWD2 PST
Parameter #1: Total Amount
Parameter #2: Power Level

Description:

The targeted creature(s) will absorb a number of effects (specified by the Total Amount field) whose Power attribute is equal to the one specified by the Power Level field (range: 0 – 9).

The Power level of the first effect to trigger any instance of this opcode's deflection will determine how much this opcode's Total Amount is decremented. Every instance of this opcode on the creature will be decremented by this amount.

On EE games, resource field ⟶ Spell cast when this effect self-terminates, default = Parent + "B".

Info:

CANNOT block effects of Secondary Type MagicAttack.
- V1 effects inherit their Secondary Type from the Header(SPL) / Extended Header(ITM), V2 effects specify it manually.
CANNOT block EFF files with resist_dispel = BIT2.
- Keep in mind that this BIT is automatically set on any effect delivered by an Area-Effect (Explosion) projectile, so this opcode cannot deflect effects through AoE projectiles.
CANNOT block effects from self.
Maintains portrait icon Spell Deflection on the target.
Maintains animation SPMAGGLO on the target, can be suppressed by opcode #291.

Note: EFF files delivered by opcode #177/opcode #283 will interact with Deflection separately from the opcode #177/opcode #283 effect that applies them, and only if that opcode #177/opcode #283 effect already got through. If the opcode #177/opcode #283 effect is deflected, then the values in the EFF file won’t matter. Most vanilla EFF files have these fields set to empty/zero to avoid interacting with this opcode.

#202 (0xCA) Spell: Bounce (by School) Variants: IWD1 IWD2 PST
Parameter #1: Irrelevant
Parameter #2: School

Description:

The targeted creature(s) will turn effects from the school specified by the School field.

V1 effects inherit their Primary Type (School) from the Header(SPL) / Extended Header(ITM), V2 effects specify it manually.

Known values for School are:

0 ⟶ NONE
1 ⟶ ABJURATION
2 ⟶ CONJURATION
3 ⟶ DIVINATION
4 ⟶ ENCHANTMENT
5 ⟶ ILLUSION
6 ⟶ EVOCATION
7 ⟶ NECROMANCY
8 ⟶ ALTERATION
9 ⟶ GENERALIST
10 ⟶ WILDMAGE

Important: Opcode #333, opcode #326 and opcode #146^*p2=2 are NOT properly reflected by this opcode – the spell specified by their resource key will affect the original target (as if it wasn't reflected).

Info:

CANNOT reflect effects of Secondary Type MagicAttack.
- V1 effects inherit their Secondary Type from the Header(SPL) / Extended Header(ITM), V2 effects specify it manually.
CAN reflect EFF files with resist_dispel = BIT2.
- Keep in mind that this BIT is automatically set on any effect delivered by an Area-Effect (Explosion) projectile, so this opcode can reflect effects through AoE projectiles.
CANNOT reflect effects from self.
Maintains portrait icon Spell Deflection on the target (this is likely a bug).
Maintains animation SPTURNI2 on the target, can be suppressed by opcode #291.

Note: EFF files delivered by opcode #177/opcode #283 will interact with Reflection separately from the opcode #177/opcode #283 effect that applies them, and only if that opcode #177/opcode #283 effect already got through. If the opcode #177/opcode #283 effect is reflected, then the values in the EFF file won’t matter. Most vanilla EFF files have these fields set to empty/zero to avoid interacting with this opcode.

#203 (0xCB) Spell: Bounce (by Secondary Type) Variants: IWD1 IWD2 PST
Parameter #1: Irrelevant
Parameter #2: Secondary Type

Description:

The targeted creature(s) will turn effects with a secondary type matching that specified by the Secondary Type field.

V1 effects inherit their Secondary Type from the Header(SPL) / Extended Header(ITM), V2 effects specify it manually.

Known values for Secondary Type are:

0 ⟶ NONE
1 ⟶ SPELLPROTECTIONS
2 ⟶ SPECIFICPROTECTIONS
3 ⟶ ILLUSIONARYPROTECTIONS
4 ⟶ MAGICATTACK
5 ⟶ DIVINATIONATTACK
6 ⟶ CONJURATION
7 ⟶ COMBATPROTECTIONS
8 ⟶ CONTINGENCY
9 ⟶ BATTLEGROUND
10 ⟶ OFFENSIVEDAMAGE
11 ⟶ DISABLING
12 ⟶ COMBINATION
13 ⟶ NON-COMBAT

Important: Opcode #333, opcode #326 and opcode #146^*p2=2 are NOT properly reflected by this opcode – the spell specified by their resource key will affect the original target (as if it wasn't reflected).

Info:

CANNOT reflect effects of Secondary Type MagicAttack.
CAN reflect EFF files with resist_dispel = BIT2.
- Keep in mind that this BIT is automatically set on any effect delivered by an Area-Effect (Explosion) projectile, so this opcode can reflect effects through AoE projectiles.
CANNOT reflect effects from self.
Maintains portrait icon Spell Deflection on the target (this is likely a bug).
Maintains animation SPTURNI2 on the target, can be suppressed by opcode #291.

Note: EFF files delivered by opcode #177/opcode #283 will interact with Reflection separately from the opcode #177/opcode #283 effect that applies them, and only if that opcode #177/opcode #283 effect already got through. If the opcode #177/opcode #283 effect is reflected, then the values in the EFF file won’t matter. Most vanilla EFF files have these fields set to empty/zero to avoid interacting with this opcode.

#204 (0xCC) Spell: Protection (by School) Variants: IWD1 IWD2 PST
Parameter #1: Irrelevant
Parameter #2: School

Description:

Gives the targeted creature(s) immunity to effects from the school specified by the School field.

V1 effects inherit their Primary Type (School) from the Header(SPL) / Extended Header(ITM), V2 effects specify it manually.

Known values for School are:

0 ⟶ NONE
1 ⟶ ABJURATION
2 ⟶ CONJURATION
3 ⟶ DIVINATION
4 ⟶ ENCHANTMENT
5 ⟶ ILLUSION
6 ⟶ EVOCATION
7 ⟶ NECROMANCY
8 ⟶ ALTERATION
9 ⟶ GENERALIST
10 ⟶ WILDMAGE

Info:

CANNOT block effects of Secondary Type MagicAttack.
- V1 effects inherit their Secondary Type from the Header(SPL) / Extended Header(ITM), V2 effects specify it manually.
CAN block EFF files with resist_dispel = BIT2.
- Keep in mind that this BIT is automatically set on any effect delivered by an Area-Effect (Explosion) projectile, so this opcode can deflect effects through AoE projectiles.
CANNOT block effects from self.
Maintains animation SPMAGGLO on the target, can be suppressed by opcode #291.

Note: EFF files delivered by opcode #177/opcode #283 will interact with Deflection separately from the opcode #177/opcode #283 effect that applies them, and only if that opcode #177/opcode #283 effect already got through. If the opcode #177/opcode #283 effect is deflected, then the values in the EFF file won’t matter. Most vanilla EFF files have these fields set to empty/zero to avoid interacting with this opcode.

#205 (0xCD) Spell: Protection (by Secondary Type) Variants: IWD1 IWD2 PST
Parameter #1: Irrelevant
Parameter #2: Secondary Type

Description:

Gives the targeted creature(s) immunity to effects from the secondary type specified by the Secondary Type field.

V1 effects inherit their Secondary Type from the Header(SPL) / Extended Header(ITM), V2 effects specify it manually.

Known values for Secondary Type are:

0 ⟶ NONE
1 ⟶ SPELLPROTECTIONS
2 ⟶ SPECIFICPROTECTIONS
3 ⟶ ILLUSIONARYPROTECTIONS
4 ⟶ MAGICATTACK
5 ⟶ DIVINATIONATTACK
6 ⟶ CONJURATION
7 ⟶ COMBATPROTECTIONS
8 ⟶ CONTINGENCY
9 ⟶ BATTLEGROUND
10 ⟶ OFFENSIVEDAMAGE
11 ⟶ DISABLING
12 ⟶ COMBINATION
13 ⟶ NON-COMBAT

Info:

CANNOT block effects of Secondary Type MagicAttack.
CAN block EFF files with resist_dispel = BIT2.
- Keep in mind that this BIT is automatically set on any effect delivered by an Area-Effect (Explosion) projectile, so this opcode can deflect effects through AoE projectiles.
CANNOT block effects from self.
Maintains animation SPMAGGLO on the target, can be suppressed by opcode #291.

Note: EFF files delivered by opcode #177/opcode #283 will interact with Deflection separately from the opcode #177/opcode #283 effect that applies them, and only if that opcode #177/opcode #283 effect already got through. If the opcode #177/opcode #283 effect is deflected, then the values in the EFF file won’t matter. Most vanilla EFF files have these fields set to empty/zero to avoid interacting with this opcode.

#206 (0xCE) Spell: Protection from Spell Variants: IWD1 PST
Parameter #1: String Reference
Parameter #2: Irrelevant

Description:

Gives the targeted creature(s) immunity from the spell specified in the resource key. The strref specified by the String Reference field is displayed when the spell is absorbed.

Bug: As of EE v2.6, String Reference is bound by

// NOTE: strrefs [0xF00000—0xF00537] index into enginest.2da, with the row being "strref - 0xF00000"

if (!pEffect->m_sourceRes.IsValid() || (pImmunitySpell->m_error != 0xf00074 && pImmunitySpell->m_error != 0xf00080))
{
	uint nNewFeedback = 0xffffffff;
	if (pImmunitySpell->m_error == 0xf00074) {
		nNewFeedback = 0xf00073;
	}
	pImmunitySpell->m_error = nNewFeedback;
}

Basically, String Reference has to be 0xF00074 (STRREF_FEEDBACK_EVADE_RESOURCE) or 0xF00080 (STRREF_FEEDBACK_IMMUNE_RESOURCE) for the engine to display it.

NOTE: the engine only allows 0xF00074 / 0xF00080 — it doesn’t care that STRREF_FEEDBACK_IMMUNE_RESOURCE (99389 on BG2:EE) is what 0xF00080 eventually resolves to, it’s not 0xF00080. opcode #206’s String Reference should look like this in Near Infinity (right click ⇒ Edit as hex number):

Info: At least in EEs, this opcode can block EFF files too.
In order to do so, both the Resource field of opcode #206 and the Parent Resource field of the EFF file must be the same string (max. 8 character long); moreover, you must set the Resource Type field of the EFF file to Spell.

#207 (0xCF) Spell: Bounce (by Resource) Variants: IWD1 IWD2 PST
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

The targeted creature(s) will reflect the SPL file specified by the resource key.

Important: Opcode #333, opcode #326 and opcode #146^*p2=2 are NOT properly reflected by this opcode – the spell specified by their resource key will affect the original target (as if it wasn't reflected).

Info:

Similar to opcode #206, this can only reflect EFF files if their Parent Type is set to Spell.
CANNOT reflect effects of Secondary Type MagicAttack.
- V1 effects inherit their Secondary Type from the Header(SPL) / Extended Header(ITM), V2 effects specify it manually.
CAN reflect EFF files with resist_dispel = BIT2.
- Keep in mind that this BIT is automatically set on any effect delivered by an Area-Effect (Explosion) projectile, so this opcode can reflect effects through AoE projectiles.
CANNOT reflect effects from self.
Maintains portrait icon Spell Deflection on the target (this is likely a bug).
Maintains animation SPTURNI2 on the target, can be suppressed by opcode #291.

Note: EFF files delivered by opcode #177/opcode #283 will interact with Reflection separately from the opcode #177/opcode #283 effect that applies them, and only if that opcode #177/opcode #283 effect already got through. If the opcode #177/opcode #283 effect is reflected, then the values in the EFF file won’t matter. Most vanilla EFF files have these fields set to empty/zero to avoid interacting with this opcode.

#208 (0xD0) HP: Minimum Limit Variants: PST
Parameter #1: Minimum Value
Parameter #2: Irrelevant

Description:

The targeted creature(s) HP value will not drop below the value specified by the Minimum Value field.
This effect sets MINHITPOINTS to Minimum Value.

Note:

Minimum Value values 65536 to 98303 will set an only allowed hit point value (HP can't be higher or lower), each representing 'Minimum Value' value - 65536, so 0 to 32767.
Values 32768 to 65535 do this as well, but all result in negative HP amounts, so not usable, as they will result in the same bugged non-death as opcode #17 reducing HP to 0.
All values higher than 98303 just repeat loop over from -32768 to 32767.
Any positive value will also grant the creature immunity to directly applied opcode #13 effects. Those applied indirectly will still kill the creature, notably by opcodes #55, #134, #151, #209, and #238.

#209 (0xD1) Death: Kill 60HP Variants: IWD1 IWD2 PST
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Instantly kills the targeted creature(s), if the targeted creature(s) has less than 60 HP.
More specifically, it functions by applying opcode #13 (Death Type = 4 // Normal Death).

Note: Immunity to opcode #13 is not sufficient to block this effect unless it’s granted through 7EYES.2DA.

#210 (0xD2) Spell Effect: Stun 90HP Variants: IWD2 PST
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Applies the stun effect to the targeted creature(s), if the targeted creature(s) has less than 90 HP.
The duration of the effect is:

1 to 29 HP ⟶ stunned for 4d4 rounds
30 to 59 HP ⟶ stunned for 2d4 rounds
60 to 89 HP ⟶ stunned for 1d4 rounds

More specifically, it functions by applying opcode #45.

Note: Immunity to opcode #45 is sufficient to block the stun effect, but without immunity to opcode #210 it will still generate an erroneous ~Stunned~ string display.

#211 (0xD3) Spell Effect: Imprisonment Variants: IWD1 IWD2 PST
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Applies the imprisonment effect to the targeted creature(s).
The field at 0xcc can be used to prevent death related effects (e.g. removal from party) running on the targetted creature(s) – not verified on EE games (it is very likely that this was replaced by giving Maze a specified duration option).

Aside from kicking from the party, or granting experience for a kill, the targeted creature(s) is suspended from the area:

They can not be targeted by Area-Effect projectiles, only with effect targets Party or Everyone or similar.
They are not detectable by any script triggers, though they may still be targeted with actions directly by scriptname or partyslot.
Excluding Opcodes #211/#212/#213:
- All other effects on the creature are suppressed until this effect is removed.
Excluding opcode #212:
- Delayed effects that would trigger will be further delayed until this effect is removed.
- Effects that would expire will not expire until this effect is removed.

#212 (0xD4) Protection: Freedom Variants: IWD1 IWD2 PST
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Applies the freedom effect to the targeted creature(s).
Removes Imprisonment and Maze, and EFF files using those opcodes.

#213 (0xD5) Spell Effect: Maze Variants: IWD1 IWD2
Parameter #1: Irrelevant
Parameter #2: Type
Special: Icon

Description:

Applies the maze effect to the targeted creature(s).

Suspends the creature in the same manner as Imprisonment, disabling Inventory and removing all active Portrait Icons (except its own), but without kicking or granting exp. It actually removes itself with a delayed opcode #212 effect (that it also applies), not by expiring. Blocking the opcode #212 effect will prevent maze from ending.

Known values for Type are:

0 ⟶ Use intelligence based duration (via INTMOD.2DA)
1 ⟶ Use Duration field

The duration of the effect is set in INTMOD.2DA, default values are:

0 to 2 int ⟶ 20d4 rounds
3 to 5 int ⟶ 10d4 rounds
6 to 8 int ⟶ 5d4 rounds
9 to 11 int ⟶ 4d4 rounds
12 to 14 int ⟶ 3d4 rounds
15 to 17 int ⟶ 2d4 rounds
18+ int ⟶ 1d4 rounds

Icon defines the index from STATDESC.2DA for custom portrait icons (EE only). Default value is Maze.

#214 (0xD6) Spell Effect: Select Spell Variants: IWD1 BG2
Parameter #1: Irrelevant
Parameter #2: Type

Description:

Uses the 2da specified by the resource key to display multiple spell options, based on the Type field.
Known values for Type are:

0 ⟶ Use resource 2da list
1 ⟶ Known mage spells, except Identify ("SPWI110"), and Nahal's Reckless Dweomer ("SPWI124")
2 ⟶ Known mage spells, except the above, and those with spell flag Ignore Wild Surge

When Type is 0, the 2da file must follow the following format:

2DA V1.0
****
ResRef		Type
name		RESREF			Casting Type
name		RESREF			Casting Type

name can be any string of characters/numbers without any whitespace, and does not need to be unique. RESREF is the filename of the spell without its .SPL extension.
As far as Casting Type is concerned:

0/1 ⟶ Spell completely mimics the mechanics of casting a spell from a quick-cast slot (including requiring and expending a memorization of the spell)
2 ⟶ It either does nothing or crashes, depending on the spell.
- Caster targeted spells just do nothing.
- Actor/Location targeted spells will crash the game.
3 ⟶ Ignores Spells/Round rule, ignores memorization.
4 ⟶ Ignores Spells/Round rule, ignores memorization, spellcasting cannot be interrupted by damage, uses normal casting speed.
5 ⟶ Ignores Spells/Round rule, cast instantly, even if the game is paused, can be cast without memorization, but will decrement memorization if exists.

Important: The target of this effect must be the only currently selected character when it triggers, and remain the selected character until a spell is chosen, or the menu will terminate.

Note: The presence of this effect in any of a spell’s ability headers will force any Wild Surge of that spell to use the ‘Cast Normal’ result.

#215 (0xD7) Graphics: Play 3D Effect Variants: IWD1 IWD2
Parameter #1: Undetermined
Parameter #2: Play where?

Description:

Plays the BAM/VVC specified by the resource key, in the style specified by the Play where? value.
Known values for Play where? are:

0 ⟶ Play on target (not attached)
1 ⟶ Play on target (attached)
2 ⟶ Play on point

Known BAM files are:

acidblob ⟶ Ankheg Spit
aciddth ⟶ Acid Hit
bloodcr ⟶ Blood Splash
bloodl ⟶ Blood Splash (Large)
bloodm ⟶ Blood Splash (Medium)
bloods ⟶ Blood Splash (Small)
burnhand ⟶ Burning Hands
cgabjura ⟶ Casting Glow (Abjuration)
cgaltera ⟶ Casting Glow (Alteration)
cgconjur ⟶ Casting Glow (Conjuration)
cgdivina ⟶ Casting Glow (Divination)
cgenchan ⟶ Casting Glow (Enchantment)
cgillusi ⟶ Casting Glow (Illusion)
cginvoca ⟶ Casting Glow (Invocation)
cgnecrom ⟶ Casting Glow (Necromancy)
colrspry ⟶ Colour Spray
explode ⟶ Crash
fire ⟶ Crash
firebrn ⟶ Small Dot of Fire
flml ⟶ Bolt Of Flame (Large)
flmm ⟶ Small Bolt Of Flame (Medium)
flms ⟶ Tiny Bolt Of Flame (Small)
flmstrk ⟶ BG Flame Strike
glphwrdh ⟶ Glyph of Warding (Part)
glphwrdt ⟶ Glyph of Warding (Full)
greased ⟶ Blob Of Grease
greaseh ⟶ Blob Of Grease
grndglow ⟶ Grey round ground Explosion
hlymite ⟶ Call Upon Holy Might
magicstn ⟶ Magic Stone
minorglb ⟶ Minor Globe of Invulnerability
mmagich ⟶ Burst of Yellowish Magic (like Bolt Of Glory)
sanctry ⟶ Sanctuary
settrap ⟶ Spell Icon
shacid ⟶ Acid Damage
shair ⟶ Green mist rises from head to air above
sharea ⟶ Exploding Yellow Ring above head
shearth ⟶ Blue drops from chest drop on ground
shglyph ⟶ Rubbish
shskull ⟶ Rubbish
shwater ⟶ Potion of Healing
sklh ⟶ Skull trap (moving)
sklt ⟶ Skull Trap (stationary)
skybolt ⟶ Call Lightning
spabjura ⟶ Four cornered blue magic joins in middle
spagscho ⟶ Unexplainable
spaltera ⟶ Coloured magic rising from ground (Like Teleport Field)
spanisum ⟶ Opening Plant (find familiar)
sparmour2 ⟶ Magic helm forms above target
sparmouri ⟶ golden armour joins together at chest of caster (armour)
sparmour ⟶ snowball like balls swirl around target
spattck1 ⟶ Globe of magic (Like ruby ray of reversal)
spattck2 ⟶ swirling small ball of magic (umber hulk confusion)
spbaserd ⟶ Golden Light with white rays of light coming from middle
spbasewt ⟶ Blue Light with white rays of light coming from middle
spbdbur ⟶ Lime green blob of magic
spbdburs ⟶ Direct Vertical Strike of greenish blue magic
spbdimsp ⟶ Greenish burst of magic upon target
spbehbla ⟶ Purplish magic swirling on target
spbehray ⟶ Fire like blob
spbhandi ⟶ Small ball of burning red fire
spblbbtm ⟶ Blade Barrier (bottom half)
spblbtop ⟶ Blade Barrier (Top Half)
spbleshi ⟶ 3 Golden rays converging upon target
spblood ⟶ Chunk of flesh when body explodes due to too much damage
spboom ⟶ Mushroom like cloud of fire
spbrnhnd ⟶ Burning Hands
spburn ⟶ Tiny blob of fire
spburns1 ⟶ Round fire
spcagemz ⟶ Maze (Only top 2 grates)
spcallli ⟶ Strike of Lightning (not lightning strike)
spccmdsi ⟶ Purplish red burst of magic
spccolde ⟶ Round of blue ice with a trail of smoke smashing on target
spccoldl ⟶ Travelling round blue ice with a trail of smoke
spccwoui ⟶ Burst of Bluish light bursting on target
spchlgt1 ⟶ Chain Lightning
spchlgt2 ⟶ Chain Lightning
spchlgt3 ⟶ Chain Lightning
spchchromi ⟶ Orb of Translucent bluish green magic
spchrorb ⟶ Chromatic Orb
spchunks ⟶ Ice Chunks (when target is frozen and smashed)
spclcomp ⟶ Blue cloud of mist
spclkfri ⟶ Blue Cloak forming on target (cloak of fear)
spcloud1 ⟶ Blue Cloud of mist
spcloud2 ⟶ A better Blue cloud of mist
spcloud3 ⟶ Small cloud of blue mist
spcloudi ⟶ Burst of orangey red magic
spcmwoui ⟶ Blue magic on target increases then shrinks and disappears
spcomend ⟶ Tentacle Whip
spcomett ⟶ A Purple Comet
spcomstt ⟶ A whip
spconfus ⟶ Confusion a ring of intertwined birds
spcontin ⟶ A large white star forming a book which blasts white light
spcrtwpn ⟶ Yellow and white rays circle forming hammer and anvil
spcspra2 ⟶ Coloured ball of magic
spcspra3 ⟶ Larger more clearer ball of magic
spcsprai ⟶ Same as last one
spcswoui ⟶ Blast of greenish yellowey white magic
spdeath3 ⟶ Rising spirit (Finger of Death)
spdimdr1 ⟶ Bg open dimension door
spdimdr2 ⟶ Bg opening dimension door
spdimndr ⟶ Bg2 dimension door
spdispma ⟶ Swirling balls of blue magic (dispel magic)
spdivina ⟶ Five balls of blue magic separating very small
spdusty2 ⟶ Disintegration dust
spelltin ⟶ Rubbish green square
spentaai ⟶ Green vine from ground
spentaci ⟶ A swarm of green vines
spentaxi ⟶ A swarm of vines that disappear after intertwining
spfbsmal ⟶ White Ball of fire
spfdeath ⟶ Rising Spirit (Finger of Death)
spfdeth3 ⟶ Rising Spirit (Finger Of Death)
spfearef ⟶ Face on ground (Horror)
spfinodi ⟶ A dieing Rose
spfire ⟶ Flame Damage
spfirebl ⟶ Fireball
spfirepl ⟶ Burst of fire in middle with a circle of white light leaving
spfiresb ⟶ Fire Shield Blue
spfiresr ⟶ Fire Shield Red
spfiret ⟶ Small Ball of Fire
spfiretr ⟶ Better Small Ball Of Fire
spfirimp ⟶ Fire Damage
spfirsdi ⟶ Burst of Flames
spfirsed ⟶ Fire Seed
spfladow ⟶ Flame Strike
spflames ⟶ Burst of Flames
spflast1 ⟶ Burst Of Flames (Different)
spflast2 ⟶ Flame Strike (different)
spfleshs ⟶ Swirling white rays (when Irenicus petrifies people)
spflmarr ⟶ Flame Arrow (more real)
spflmbld ⟶ Rising Sword
spflmsti ⟶ Bottom half Of Icewind Dale Style Flame Strike
spflsrin ⟶ Central flaming ball ejecting 2 rings of white light
spflstri ⟶ Flamestrike with burning bright yellow at bottom
spfracti ⟶ a chain breaking in half
spfstrmi ⟶ Small meteor swarm
spgenhla ⟶ Ray of bluish light with rays of yellow light (Holy Power)
spgenhlb ⟶ Ray Above but forming (the one above forms and finishes)
spgflsh1 ⟶ Burst of yellow red magic (when monsters unsummon)
spglyphi ⟶ Travelling Coloured glyph of warding
spglypti ⟶ Floating coloured glyph
spgreaai ⟶ Purple oval of magic
spgreaci ⟶ same oval of magic but still the one above forms and goes
spgreaxi ⟶ Blob of purple goo exploding on target
spgreorb ⟶ green Orb
sphandat ⟶ A electrical looking hand appearing
sphealin ⟶ Healing
sphleft ⟶ left Half of Icewind style Heal
sphlhi01 ⟶ left half of icewinds Heal
sphlhi02 ⟶ Right half of icewinds heal
sphlybls ⟶ Aid
sphlysm2 ⟶ Lighter Ray of Holy Smite
sphlysm3 ⟶ Darker ray of Holy Smite
sphlysmt ⟶ Yellow ray of light striking target
sphollyw ⟶ A swirl of blue magic forming then exploding into many doves
spholmig ⟶ Already formed circle of magic with white rays shining out
spholymt ⟶ Yellow ray with bluish mist on side vertically on target
spholywd ⟶ Light blue ray of vertical energy with whitish mist on side
sphorpuf ⟶ Yellowish puff of smoke
sphorwil ⟶ Abi Dalzims horrid wilting
sphright ⟶ Right hands side of Icewinds spell heal
spicestm ⟶ Ice storm
spillus ⟶ a ball of blue magic swirling
spilusio ⟶ a ball of blue magic swirling
spinsect ⟶ Black swarm of Insects
spiplaai ⟶ Brown swarm of insects
spiplari ⟶ Brown swarm of insects
spiplaui ⟶ Forming swarm of brown insects
splightb ⟶ Lightning Bolt
spmagglo ⟶ Minor Spell Deflection
spmagmis ⟶ Magic Missile
spmetswa ⟶ Flaming ball of fire
spmetswm ⟶ Meteor Swarm
spmetswn ⟶ More Balls of Meteor swarm
spmindat ⟶ The swirling ball above head when you are held
spmirroi ⟶ A shining blue mirror
spmonsum ⟶ Monster Summoning
spnecro1 ⟶ Ring of circling reddish purplish magic
spnpoisi ⟶ Icewinds style of cure disease
spnwchrm ⟶ Green orbs rising from ground to head (charm)
sppfirai ⟶ Produce Fire
sppfirri ⟶ smaller burst of fire
sppfirxi ⟶ larger burst of flame
spplanar ⟶ Large yellow orb forming then shattering
sppolymp ⟶ Polymorph
spportal ⟶ Round portal forming
sppowwrd ⟶ One of the red Power Word effects
spprayri ⟶ Icewind Dales style of prayer
spprism2 ⟶ swirling orb of colour
spprism3 ⟶ swirling ball of colour
spprismt ⟶ swirling ball of colour
spproimg ⟶ Crack in ground forming some round circle
spprotec ⟶ Protection from normal weapons
spraised ⟶ animate dead
spraisei ⟶ growing rose (raise dead)
sprdrabu ⟶ Vertical strike of red magic
sprdrae2 ⟶ burst of yellow fire like magic
sprdraex ⟶ burst of yellow fire like magic
sprdraim ⟶ puff of red smoke exploding on target in a ring
sprdrasi ⟶ puff of red smoke formed and it stays formed
spresuri ⟶ growing silver rose (resurrection)
spring ⟶ grey travelling ray
sprmpari ⟶ Icewind Style of remove paralysis
sprotect ⟶ Protection from evil
sprwra2i ⟶ A blue symbol on the ground with rays of blue rising from it
sprwrati ⟶ green ray forming and bursting down on target
spsarmour ⟶ Forming wings
spschgi ⟶ Purple energy with a black ring around it swirling
spscorch ⟶ Fire thing again (so many of these)
spscoric ⟶ same as above
spsdbur ⟶ A ray of misty grey magic vertically striking fast
spsdimpa ⟶ Great sparks of white bursting
spsdrbur ⟶ a ray of misty grey magic vertically striking
spshadow ⟶ Nothing
spshield ⟶ Prot normal missiles
spshkimp ⟶ Electrical damage effect
spskullt ⟶ red eyed skull with a trail of green smoke
spsmkjet ⟶ nothing
spsmold ⟶ nothing
spsmpuff ⟶ white round puff of smoke disappearing
spsnrayi ⟶ Sunray
spsohopi ⟶ Symbol forming and ejecting a ray of magic (symbol hopeless)
spspaini ⟶ Symbol of Pain
spsparks ⟶ sparks
spspeart ⟶ Bolt of Glory
spspmaze ⟶ 4 lines forming a sharp cage of spears
spstink ⟶ small puff of smoke rising from ground
spstones ⟶ stoneskin
spstrenh ⟶ Whiteray shooting down forming a puff of magic on target (lesser restoration)
spstreni ⟶ Strength of One
spsturni ⟶ Minor Spell Turning
spsumgte ⟶ gate (ring of bones)
spsummon ⟶ Call Woodland Beings
spsunray ⟶ Larger sunray
sptrapbb ⟶ Snare Trap
sptrusee ⟶ Opening Eye (clairvoyance)
spturni2 ⟶ Already formed spell turning
spunhbl2 ⟶ unholy smite
spunhbl3 ⟶ darker version of above
spunhblt ⟶ Red bolt shooting
spunholy ⟶ Am orange glow exploding into many doves
spwi124a ⟶ Spell Icon
spwi124b ⟶ Spell Icon
spwi124c ⟶ Spell Icon
spwirbla ⟶ Some ring forming a circle with other lines coming from it with blades arching up forming some cage
spwrdfld ⟶ Teleport Field
stnkcldd ⟶ Stinking Cloud
stnkcldt ⟶ Travelling Ball of Stinking Cloud
travel ⟶ An orb of swirling magic orb that shoots out to everyone
trbloba ⟶ green blob forming and splatting on target
trblobb ⟶ green blob forming and splatting on target
trdartst ⟶ Shooting knife looking things
trgooyaa ⟶ green blob forming and splatting on target
trgooybb ⟶ green blob forming and splatting on target
trspeart ⟶ Spear rising from ground striking target
trventaa ⟶ Bottom part of opening vent
trventbb ⟶ top part of opening vent which sprays out mist
webbomb ⟶ A burst of webs
webc ⟶ entangled in web
webentd ⟶ Other version of web
webenth ⟶ Entangling web
webentt ⟶ Travelling ball of shining web

Note: Play where? 0 or 2 also supports VEF files.

#216 (0xD8) Spell Effect: Level Drain Variants: IWD1 IWD2 BG2
Parameter #1: Amount
Parameter #2: Irrelevant

Description:

Drains levels from the targeted creature(s) as specified by the Amount field. Amount can be positive or negative.
In particular:

Alters the targeted creature(s) Base THAC0, Saving Throws, Hit Points, and Spell Slots as appropriate for their new effective level.
Thief skills are adjusted depending of the class and kit of the creature.
Rangers, Shamans, and Bards have their value adjusted as appropriate for their new effective level based on files SKILLRNG.2DA, SKILLSHM.2DA, and SKILLBRD.2DA, respectively.
Monks and Thieves skills are all adjusted by the average amount of skill points they receive per level (regardless of which skills they were spent on), applied and capped (range: [0,255]) before racial and/or dexterity adjustments.
All effects using Timing Mode 2 (equipped) that alter the above stats are suppressed.
The targeted creature(s) cannot level-up.
The targeted creature(s) current experience is hidden (they still gain experience as normal).
This effect is removed, regardless of Timing Mode, by any death that sets STATE_DEAD.

Moreover:

Parameter3 is used internally to store recalculated current hp.
Parameter4 is used internally to store recalculated max xp.

This effect sets LEVELDRAIN to Amount.

#217 (0xD9) Spell Effect: Unconsciousness 20HP Variants: IWD1 IWD2
Parameter #1: Irrelevant
Parameter #2: Wake on damage
Special: Icon

Description:

Applies opcode #39 using Sleep (Wake on Hit) mode to the targeted creature(s), if the targeted creature(s) has less than 20 HP. The effect always lasts 5 rounds, and ignores the duration field. When calling the sleep opcode, parameters 2 and special are copied over.

#218 (0xDA) Protection: Stoneskin Variants: BG2 IWD2
Parameter #1: Amount
Parameter #2: Use Dice?
Special: Icon

Description:

Gives the targeted creature(s) a number of protections from physical attacks, as specified by the Amount field.
Known values for Use Dice? are:

0 ⟶ No
1 ⟶ Yes

If Amount and Use Dice? values are both non-zero, the total number of protections from physical attacks is: 'Amount' + Dice values.

This opcode maintains STONESKINS to the amount of skins left.

Icon defines the index from STATDESC.2DA for custom portrait icons. Default value is Stoneskin.

#219 (0xDB) Stat: AC vs. Creature Type Modifier Variants: BGEE IWD1 IWD2
Parameter #1: IDS Entry
Parameter #2: IDS File

Description:

Gives the targeted creature(s) a 2 point bonus AC and Saving Throws against the creature type specified by the IDS Entry in the IDS file specified by the IDS File field. Note that the saving throws are not specified by the opcode name but are correctly rolled by the engine.
Known values for IDS File are:

2 ⟶ EA.IDS
3 ⟶ GENERAL.IDS
4 ⟶ RACE.IDS
5 ⟶ CLASS.IDS
6 ⟶ SPECIFIC.IDS
7 ⟶ GENDER.IDS
8 ⟶ ALIGN.IDS
9 ⟶ KIT.IDS (EE-only)

Note: Multiple instances of this effect do not stack their bonus, but can be used to specify multiple creature types.

#219 (0xDB) Stat: AC vs. Creature Type Modifier Variants: BG2 IWD1 IWD2
Parameter #1: IDS Entry
Parameter #2: IDS File

Description:

Gives the targeted creature(s) a 2 point bonus AC and Saving Throws against the creature type specified by the IDS Entry in the IDS file specified by the IDS File field. Note that the saving throws are not specified by the opcode name but are correctly rolled by the engine.
Known values for IDS File are:

2 ⟶ EA.IDS
3 ⟶ GENERAL.IDS
4 ⟶ RACE.IDS
5 ⟶ CLASS.IDS
6 ⟶ SPECIFIC.IDS
7 ⟶ GENDER.IDS
8 ⟶ ALIGN.IDS
9 ⟶ KIT.IDS (broken at least in 2.5)

Note: Multiple instances of this effect do not stack their bonus, but can be used to specify multiple creature types.

#220 (0xDC) Removal: Remove School Variants: IWD1 IWD2
Parameter #1: Maximum Level
Parameter #2: School

Description:

For any effect that matches the specified School, and has a 0 <= Power Level <= Maximum Level:

All effects from that effect's Parent Resource with a Power Level <= Maximum Level that do not use Timing Mode 9 will be removed.
An effect using Timing Mode 9 can be used to match the type and power level to trigger its resource's removal, but that effect itself will not be removed.
If removal is triggered, the relevant string from MSCHOOL.2DA is displayed in the combat log.

V1 effects inherit their Primary Type (School) from the Header(SPL) / Extended Header(ITM), V2 effects specify it manually.

Known values for School are:

0 ⟶ NONE
1 ⟶ ABJURATION
2 ⟶ CONJURATION
3 ⟶ DIVINATION
4 ⟶ ENCHANTMENT
5 ⟶ ILLUSION
6 ⟶ EVOCATION
7 ⟶ NECROMANCY
8 ⟶ ALTERATION
9 ⟶ GENERALIST
10 ⟶ WILDMAGE

#221 (0xDD) Removal: Remove Secondary Type Variants: IWD1 IWD2
Parameter #1: Maximum Level
Parameter #2: Secondary Type

Description:

For any effect that matches the specified Secondary Type, and has a 0 <= Power Level <= Maximum Level:

All effects from that effect's Parent Resource with a Power Level <= Maximum Level that do not use Timing Mode 9 will be removed.
An effect using Timing Mode 9 can be used to match the type and power level to trigger its resource's removal, but that effect itself will not be removed.
If removal is triggered, the relevant string from MSECTYPE.2DA is displayed in the combat log.

V1 effects inherit their Secondary Type from the Header(SPL) / Extended Header(ITM), V2 effects specify it manually.

Known values for Secondary Type are:

0 ⟶ NONE
1 ⟶ SPELLPROTECTIONS
2 ⟶ SPECIFICPROTECTIONS
3 ⟶ ILLUSIONARYPROTECTIONS
4 ⟶ MAGICATTACK
5 ⟶ DIVINATIONATTACK
6 ⟶ CONJURATION
7 ⟶ COMBATPROTECTIONS
8 ⟶ CONTINGENCY
9 ⟶ BATTLEGROUND
10 ⟶ OFFENSIVEDAMAGE
11 ⟶ DISABLING
12 ⟶ COMBINATION
13 ⟶ NON-COMBAT

#222 (0xDE) Spell Effect: Teleport Field Variants: IWD1 IWD2
Parameter #1: Max Range
Parameter #2: Irrelevant

Description:

Applies the teleport field to the targeted creature(s).
The Max Range field sets the maximum range of the teleporting effect. Teleport is random direction up to specified range, range measured same as projectile radius, i.e.: 16 = 1 ft.

#223 (0xDF) Spell: Immunity (by School, decrementing) Variants: IWD1 IWD2
Parameter #1: Total Amount
Parameter #2: School

Description:

The targeted creature(s) will absorb a number of effects (specified by the Total Amount field) whose Primary Type (School) is equal to the one specified by the School field.

V1 effects inherit their Primary Type (School) from the Header(SPL) / Extended Header(ITM), V2 effects specify it manually.

The Power level of the first effect to trigger any instance of this opcode's deflection will determine how much this opcode's Amount is decremented. Every instance of this opcode on the creature will be decremented by this amount.

Known values for School are:

0 ⟶ NONE
1 ⟶ ABJURATION
2 ⟶ CONJURATION
3 ⟶ DIVINATION
4 ⟶ ENCHANTMENT
5 ⟶ ILLUSION
6 ⟶ EVOCATION
7 ⟶ NECROMANCY
8 ⟶ ALTERATION
9 ⟶ GENERALIST
10 ⟶ WILDMAGE

On EE games, resource field ⟶ Spell cast when this effect self-terminates, default = Parent + "B".

Info:

CANNOT block effects of Secondary Type MagicAttack.
- V1 effects inherit their Secondary Type from the Header(SPL) / Extended Header(ITM), V2 effects specify it manually.
CAN block EFF files with resist_dispel = BIT2.
- Keep in mind that this BIT is automatically set on any effect delivered by an Area-Effect (Explosion) projectile, so this opcode can deflect effects through AoE projectiles.
CANNOT block effects from self.
Maintains portrait icon Spell Shield on the target.
Maintains animation SPMAGGLO on the target, can be suppressed by opcode #291.

Note: EFF files delivered by opcode #177/opcode #283 will interact with Deflection separately from the opcode #177/opcode #283 effect that applies them, and only if that opcode #177/opcode #283 effect already got through. If the opcode #177/opcode #283 effect is deflected, then the values in the EFF file won’t matter. Most vanilla EFF files have these fields set to empty/zero to avoid interacting with this opcode.

#224 (0xE0) Cure: Level Drain (Restoration) Variants: IWD1 IWD2
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Applies the restoration effect to the targeted creature(s), resetting the level of the target.

Note: Removes opcode #216 (Level drain) effects from the creature, will not remove opcode #96 (Level change) effects.

#225 (0xE1) Spell: Reveal Magic Variants: IWD1 IWD2
Parameter #1: Undefined
Parameter #2: Undefined

Description:

Highlights the targeted creature(s) if they are affected by dispellable magic. The effect appears to be without duration.
More specifically, it functions by applying opcode #50 to creature(s) with any dispellable effects. Color glow is red.

#226 (0xE2) Spell: Immunity (by Secondary Type, decrementing) Variants: IWD1 IWD2
Parameter #1: Total Amount
Parameter #2: Secondary Type

Description:

The targeted creature(s) will absorb a number of effects (specified by the Total Amount field) whose Secondary Type is equal to the one specified by the Secondary Type field.

V1 effects inherit their Secondary Type from the Header(SPL) / Extended Header(ITM), V2 effects specify it manually.

The Power level of the first effect to trigger any instance of this opcode's deflection will determine how much this opcode's Total Amount is decremented. Every instance of this opcode on the creature will be decremented by this amount.

Known values for Secondary Type are:

0 ⟶ NONE
1 ⟶ SPELLPROTECTIONS
2 ⟶ SPECIFICPROTECTIONS
3 ⟶ ILLUSIONARYPROTECTIONS
4 ⟶ MAGICATTACK
5 ⟶ DIVINATIONATTACK
6 ⟶ CONJURATION
7 ⟶ COMBATPROTECTIONS
8 ⟶ CONTINGENCY
9 ⟶ BATTLEGROUND
10 ⟶ OFFENSIVEDAMAGE
11 ⟶ DISABLING
12 ⟶ COMBINATION
13 ⟶ NON-COMBAT

On EE games, resource field ⟶ Spell cast when this effect self-terminates, default = Parent + "B".

Info:

CAN block effects of Secondary Type MagicAttack.
CAN block EFF files with resist_dispel = BIT2.
- Keep in mind that this BIT is automatically set on any effect delivered by an Area-Effect (Explosion) projectile, so this opcode can deflect effects through AoE projectiles.
CANNOT block effects from self.
Maintains portrait icon Spell Shield on the target.
Maintains animation SPMAGGLO on the target, can be suppressed by opcode #291.

Note: EFF files delivered by opcode #177/opcode #283 will interact with Deflection separately from the opcode #177/opcode #283 effect that applies them, and only if that opcode #177/opcode #283 effect already got through. If the opcode #177/opcode #283 effect is deflected, then the values in the EFF file won’t matter. Most vanilla EFF files have these fields set to empty/zero to avoid interacting with this opcode.

#227 (0xE3) Spell: Bounce (by School, decrementing) Variants: IWD1 IWD2
Parameter #1: Total Amount
Parameter #2: School

Description:

The targeted creature(s) will reflect a number of effects (specified by the Total Amount field) whose Primary Type (School) is equal to the one specified by the School field.

V1 effects inherit their Primary Type (School) from the Header(SPL) / Extended Header(ITM), V2 effects specify it manually.

The Power level of the first effect to trigger any instance of this opcode's reflection will determine how much this opcode's Total Amount is decremented. Every instance of this opcode on the creature will be decremented by this amount.

Known values for School are:

0 ⟶ NONE
1 ⟶ ABJURATION
2 ⟶ CONJURATION
3 ⟶ DIVINATION
4 ⟶ ENCHANTMENT
5 ⟶ ILLUSION
6 ⟶ EVOCATION
7 ⟶ NECROMANCY
8 ⟶ ALTERATION
9 ⟶ GENERALIST
10 ⟶ WILDMAGE

On EE games, resource field ⟶ Spell cast when this effect self-terminates, default = Parent + "B".

Important: As of EE v2.6, spells can no longer be "chained" back and forth by reflection.

If Caster and Target are both affected by this opcode, the spell from Caster will reflect off Target, but not reflect back off Caster. Previously, whoever had more reflection charges would end up victorious, now the initial target always ends up victorious.

Info:

CANNOT reflect effects of Secondary Type MagicAttack.
- V1 effects inherit their Secondary Type from the Header(SPL) / Extended Header(ITM), V2 effects specify it manually.
CAN reflect EFF files with resist_dispel = BIT2.
- Keep in mind that this BIT is automatically set on any effect delivered by an Area-Effect (Explosion) projectile, so this opcode can reflect effects through AoE projectiles.
CANNOT reflect effects from self.
Maintains portrait icon Spell Deflection on the target (this is likely a bug).
Maintains animation SPTURNI2 on the target, can be suppressed by opcode #291.

Note: EFF files delivered by opcode #177/opcode #283 will interact with Reflection separately from the opcode #177/opcode #283 effect that applies them, and only if that opcode #177/opcode #283 effect already got through. If the opcode #177/opcode #283 effect is reflected, then the values in the EFF file won’t matter. Most vanilla EFF files have these fields set to empty/zero to avoid interacting with this opcode.

#228 (0xE4) Spell: Bounce (by Secondary Type, decrementing) Variants: IWD1 IWD2
Parameter #1: Total Amount
Parameter #2: Secondary Type

Description:

The targeted creature(s) will reflect a number of effects (specified by the Total Amount field) whose Secondary Type is equal to the one specified by the Secondary Type field.

V1 effects inherit their Secondary Type from the Header(SPL) / Extended Header(ITM), V2 effects specify it manually.

The Power level of the first effect to trigger any instance of this opcode's reflection will determine how much this opcode's Total Amount is decremented. Every instance of this opcode on the creature will be decremented by this amount.

Known values for Secondary Type are:

0 ⟶ NONE
1 ⟶ SPELLPROTECTIONS
2 ⟶ SPECIFICPROTECTIONS
3 ⟶ ILLUSIONARYPROTECTIONS
4 ⟶ MAGICATTACK
5 ⟶ DIVINATIONATTACK
6 ⟶ CONJURATION
7 ⟶ COMBATPROTECTIONS
8 ⟶ CONTINGENCY
9 ⟶ BATTLEGROUND
10 ⟶ OFFENSIVEDAMAGE
11 ⟶ DISABLING
12 ⟶ COMBINATION
13 ⟶ NON-COMBAT

On EE games, resource field ⟶ Spell cast when this effect self-terminates, default = Parent + "B".

Important: As of EE v2.6, spells can no longer be "chained" back and forth by reflection.

If Caster and Target are both affected by this opcode, the spell from Caster will reflect off Target, but not reflect back off Caster. Previously, whoever had more reflection charges would end up victorious, now the initial target always ends up victorious.

Info:

CANNOT reflect effects of Secondary Type MagicAttack.
CAN reflect EFF files with resist_dispel = BIT2.
- Keep in mind that this BIT is automatically set on any effect delivered by an Area-Effect (Explosion) projectile, so this opcode can reflect effects through AoE projectiles.
CANNOT reflect effects from self.
Maintains portrait icon Spell Deflection on the target (this is likely a bug).
Maintains animation SPTURNI2 on the target, can be suppressed by opcode #291.

Note: EFF files delivered by opcode #177/opcode #283 will interact with Reflection separately from the opcode #177/opcode #283 effect that applies them, and only if that opcode #177/opcode #283 effect already got through. If the opcode #177/opcode #283 effect is reflected, then the values in the EFF file won’t matter. Most vanilla EFF files have these fields set to empty/zero to avoid interacting with this opcode.

#229 (0xE5) Removal: Remove One School Variants: IWD1 IWD2 BG2
Parameter #1: Max Level
Parameter #2: School

Description:

Removes all effects with a matching School, with a Power Level up to Max Level, of the first two valid Parent Resources from the targeted creature(s).

V1 effects inherit their Primary Type (School) from the Header(SPL) / Extended Header(ITM), V2 effects specify it manually.

Known values for School are:

0 ⟶ NONE
1 ⟶ ABJURATION
2 ⟶ CONJURATION
3 ⟶ DIVINATION
4 ⟶ ENCHANTMENT
5 ⟶ ILLUSION
6 ⟶ EVOCATION
7 ⟶ NECROMANCY
8 ⟶ ALTERATION
9 ⟶ GENERALIST
10 ⟶ WILDMAGE

The first valid Parent Resource has a matching effect with a non-zero Power Level and a Timing Mode other than 2/5/8, all such matching effects of this Parent Resource will be removed.

The second valid Parent Resource has a matching effect with a non-zero Power Level and a Timing Mode of 2/5/8, all such matching effects of this Parent Resource will be removed.

If any effects are removed, the String Reference corresponding to the School from MSCHOOL.2DA is returned to the combat log.

Info: Basically it removes one equipped resource effect list and one non-equipped resource effect list, except that equipped effects aren’t removable while its item is equipped, so this behavior is not common.
The only way to really see this behavior (removing two separate resources) is to have a spell or item ability that only applies equipped effects.

Note: Effects with a Power Level of 0 are ignored when this opcode checks for effects, but will still be removed if another effect from its Parent Resource triggers removal.

#230 (0xE6) Removal: Remove One Secondary Type Variants: IWD1 IWD2 BG2
Parameter #1: Max Level
Parameter #2: Secondary Type

Description:

Removes all effects with a matching Secondary Type, with a Power Level up to Max Level, of the first two valid Parent Resources from the targeted creature(s).

V1 effects inherit their Secondary Type from the Header(SPL) / Extended Header(ITM), V2 effects specify it manually.

Known values for Secondary Type are:

0 ⟶ NONE
1 ⟶ SPELLPROTECTIONS
2 ⟶ SPECIFICPROTECTIONS
3 ⟶ ILLUSIONARYPROTECTIONS
4 ⟶ MAGICATTACK
5 ⟶ DIVINATIONATTACK
6 ⟶ CONJURATION
7 ⟶ COMBATPROTECTIONS
8 ⟶ CONTINGENCY
9 ⟶ BATTLEGROUND
10 ⟶ OFFENSIVEDAMAGE
11 ⟶ DISABLING
12 ⟶ COMBINATION
13 ⟶ NON-COMBAT

The first valid Parent Resource has a matching effect with a non-zero Power Level and a Timing Mode other than 2/5/8, all such matching effects of this Parent Resource will be removed.

The second valid Parent Resource has a matching effect with a non-zero Power Level and a Timing Mode of 2/5/8, all such matching effects of this Parent Resource will be removed.

If any effects are removed, the String Reference corresponding to the Secondary Type Type from MSECTYPE.2DA is returned to the combat log.

Info: Basically it removes one equipped resource effect list and one non-equipped resource effect list, except that equipped effects aren’t removable while its item is equipped, so this behavior is not common.
The only way to really see this behavior (removing two separate resources) is to have a spell or item ability that only applies equipped effects.

Note: Effects with a Power Level of 0 are ignored when this opcode checks for effects, but will still be removed if another effect from its Parent Resource triggers removal.

#231 (0xE7) Spell Effect: Time Stop Variants: IWD1
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Applies the time stop effect.
The timestop effect lasts half as long as the Duration specified for the effect.

In particular:

All creatures not immune to Time Stop will be rendered uncontrollable, can be hit automatically by attacks as if they were HELPLESS (but do not actually have STATE_HELPLESS set), and their frequency-based effects will not trigger (poison/regeneration), but their duration will run.
Projectiles are suspended mid-flight until the Time Stop ends, at which point they will resume normal function.
Area Effect projectiles are suppressed until the Time Stop ends, at which point they will resume normal function, though their duration will run during the Time Stop.
Projectiles that hit "instantly" (#0 and #1 for spells/items) are unaffected by Time Stop, which includes all melee weapons.

Important: Both parameters should be 0 (zero).

Note: Only one creature may have a Time Stop effect running at a time, applying a Time Stop effect during another will override the previous. The caster is always immune to their own Time Stop effect, they do not require opcode #310, unless their own Time Stop is at risk of being overridden.

#232 (0xE8) Spell Effect: Cast Spell on Condition Variants: BG2 IWD1 IWD2
Parameter #1: Target
Parameter #2: Condition
Special: Extra

Description:

Casts the spell specified by the resource field on the target specified by the Target field, when the condition from the Condition field is true. The conditions are akin to various triggers.

Known values for Target are:

0 ⟶ Myself
1 ⟶ LastHitter
2 ⟶ NearestEnemyOf (effectively [EVILCUTOFF])
- Since object specifiers are not relative to the creature, this works as expected only from the Player's perspective.
3+ ⟶ Nearest (effectively [ANYONE])

Known values for Condition are:

0 ⟶ HitBy([ANYONE]) — Checked every time
1 ⟶ See([EVILCUTOFF]) — Checked once per round
- Since object specifiers are not relative to the creature, this works as expected only from the Player's perspective.
2 ⟶ HPPercentLT(Myself,50) — Checked once per round
3 ⟶ HPPercentLT(Myself,25) — Checked once per round
4 ⟶ HPPercentLT(Myself,10) — Checked once per round
5 ⟶ StateCheck(Myself,STATE_HELPLESS) f.i. unconscious — Checked once per round
6 ⟶ StateCheck(Myself,STATE_POISONED) — Checked once per round
7 ⟶ AttackedBy([ANYONE]) — Checked every time
8 ⟶ PersonalSpaceDistance([ANYONE],4) — Checked once per round
9 ⟶ PersonalSpaceDistance([ANYONE],10) — Checked once per round
10 ⟶ Delay(Extra) — Checked once per round
- This condition is pretty unreliable because two events need to line up for it to fire: the Delay() trigger needs to return true at the same time the contingency is checked.
11 ⟶ TookDamage() — Checked every time
12 ⟶ Killed([ANYONE]) — Checked every time
13 ⟶ TimeOfDay(Extra) — Checked once per round
- For this particular Condition, the Target parameter must be 0.
14 ⟶ PersonalSpaceDistance([ANYONE],Extra) — Checked once per round
15 ⟶ StateCheck([ANYONE],Extra) — Checked once per round
16 ⟶ Die()
17 ⟶ Died([ANYONE]) — Checked every time
18 ⟶ TurnedBy([ANYONE]) — Checked every time
19 ⟶ HPLT(Myself,Extra) — Checked once per round
20 ⟶ HPPercentLT(Myself,Extra) — Checked once per round
21 ⟶ CheckSpellState(Myself,Extra) — Checked once per round

Known values for Extra are:

BIT0 ⟶ When triggered, will display STRREF_GUI_FEEDBACK_CONTINGENCY_TRIGGER as effect host and remove effect
- If Condition=0 and (Extra BAND BIT0) == BIT0 (i.e., BIT0 is set) ⟶ Trigger even if the effect host was the source of the hit
BIT1 ⟶ Fire subspell as effect source (the creature that casts the spell) instead of effect host (the creature the effect is attached to)
- This is not relevant for vanilla spells. However, just for the sake of providing an example...
  If you change Globe of Blades, ("sppr725.spl") like so:
  1. SPL Ability ⇒ Target = Living actor
  2. And change all of the ability's effects to Target = Projectile target
  3. And change "sppr725d.eff" to Resource = "spwi112", Special = 2
  If you cast the spell on another creature, when the contingency is triggered the caster fires Magic Missile ("spwi112.spl") at the contingency host. Basically it lets you check the conditions on another creature yet take an action from the caster.
BIT2 ⟶ Suppress subspell casting glow and string
BIT3 ⟶ Suppress subspell range check

The Extra field is also used for the following Condition values:

13 ⟶ Use value from TIMEODAY.IDS
14 ⟶ Range in feet
15 ⟶ Use value from STATE.IDS
19 ⟶ Any numeric value
20 ⟶ Any numeric value
21 ⟶ Use value from SPLSTATE.IDS

Important:

As you may have noticed, Extra acting as both flags and parameters for some Condition values is annoying.
As a matter of fact, conditions such as TimeOfDay(DUSK) (i.e., Condition=13 and Extra=1) may not work as expected — In this particular case, since BIT0 is set to 1, the effect will terminate after first trigger and STRREF_GUI_FEEDBACK_CONTINGENCY_TRIGGER will be displayed in the combat log.
- Hopefully, this is not an issue since you can set up the opcode #232 effect to always fire (see below) and then add opcode #318/opcode #324 effects to the subspell filtering for the desired condition(s).

When used in an external EFF file, resource2 and resource3 can also be specified — all spells will be cast when triggered.

When used in an external EFF file, known values for Parameter3 are:

0 ⟶ Not a "real" contingency (Fire Shields, Globe of Blades, etc...)
1 ⟶ Real contingency
- Maintains Contingency portrait icon, displays feedback message STRREF_GUI_FEEDBACK_CONTINGENCY_TRIGGER when triggered, and terminates this effect after first trigger. This value is always set when created by opcode #234.

When used in an external EFF file, Parent Type (Source Type) may be manually set to influence its behavior. Known values for Parent Type are:

0 ⟶ None
- Allows further effects with a matching Parent Resource to affect the target.
1 ⟶ Spell
- Any further effects with a matching Parent Resource will be blocked by the engine and string STRREF_ERROR_CAN_NOT_CAST_TWO_CONT is returned to the combat log. Spells must therefore either have this as the last effect, or use it in an EFF through opcode #177, specifying a Parent Type of 0 or 2.
2 ⟶ Item
- Allows further effects with a matching Parent Resource to affect the target.

Info:

If you need a condition which is always true, you could set Condition to 20 and Extra to 102 — hp < 102% will always be true. 102 is used because its binary representation does not have BIT0 set to 1. In so doing:
- STRREF_GUI_FEEDBACK_CONTINGENCY_TRIGGER won't be displayed in the combat log
- the effect won't terminate after first trigger
These triggers and objects are limited to their normal detection range: e.g., Died([ANYONE]) won't see someone dying on the other side of the map.
Excluding the PersonalSpaceDistance() checks, [ANYONE] includes Myself.
The presence of this effect in any of a spell's ability headers will force any Wild Surge of that spell to use the Cast Normal result.
As of v2.6, the vanilla Contingency spells will now remove a previous instance of themselves if recast before they have triggered.
- Probably was a cleaner solution than working with subspells to do the same with opcode #321.

#233 (0xE9) Stat: Proficiency Modifier Variants: IWD1
Parameter #1: Amount
Parameter #2: Type

Description:

Sets the weapon proficiency points for the weapon type specified in the Type field, to the value specified by the Amount field, for the targeted creature(s).

`Type` value	BG2	BG:EE / IWD:EE	BG2:EE
89	PROFICIENCYBASTARDSWORD	PROFICIENCYBASTARDSWORD	PROFICIENCYBASTARDSWORD
90	PROFICIENCYLONGSWORD	PROFICIENCYLONGSWORD	PROFICIENCYLONGSWORD
91	PROFICIENCYSHORTSWORD	PROFICIENCYSHORTSWORD	PROFICIENCYSHORTSWORD
92	PROFICIENCYAXE	PROFICIENCYAXE	PROFICIENCYAXE
93	PROFICIENCYTWOHANDEDSWORD	PROFICIENCYTWOHANDEDSWORD	PROFICIENCYTWOHANDEDSWORD
94	PROFICIENCYKATANA	PROFICIENCYKATANA	PROFICIENCYKATANA
95	PROFICIENCYSCIMITARWAKISASHININJATO	PROFICIENCYSCIMITARWAKISASHININJATO	PROFICIENCYSCIMITARWAKISASHININJATO
96	PROFICIENCYDAGGER	PROFICIENCYDAGGER	PROFICIENCYDAGGER
97	PROFICIENCYWARHAMMER	PROFICIENCYWARHAMMER	PROFICIENCYWARHAMMER
98	PROFICIENCYSPEAR	PROFICIENCYSPEAR	PROFICIENCYSPEAR
99	PROFICIENCYHALBERD	PROFICIENCYHALBERD	PROFICIENCYHALBERD
100	PROFICIENCYFLAILMORNINGSTAR	PROFICIENCYFLAILMORNINGSTAR	PROFICIENCYFLAILMORNINGSTAR
101	PROFICIENCYMACE	PROFICIENCYMACE	PROFICIENCYMACE
102	PROFICIENCYQUARTERSTAFF	PROFICIENCYQUARTERSTAFF	PROFICIENCYQUARTERSTAFF
103	PROFICIENCYCROSSBOW	PROFICIENCYCROSSBOW	PROFICIENCYCROSSBOW
104	PROFICIENCYLONGBOW	PROFICIENCYLONGBOW	PROFICIENCYLONGBOW
105	PROFICIENCYSHORTBOW	PROFICIENCYSHORTBOW	PROFICIENCYSHORTBOW
106	PROFICIENCYDART	PROFICIENCYDART	PROFICIENCYDART
107	PROFICIENCYSLING	PROFICIENCYSLING	PROFICIENCYSLING
108	PROFICIENCYBLACKJACK	PROFICIENCYBLACKJACK	PROFICIENCYBLACKJACK
109	PROFICIENCYGUN	WEAPON_ENCHANTMENT^*	CLERIC_HALLOW^*
110	PROFICIENCYMARTIALARTS	CLERIC_ARMOR_OF_FAITH^*	CLERIC_ARMOR_OF_FAITH^*
111	PROFICIENCY2HANDED	PROFICIENCY2HANDED	PROFICIENCY2HANDED
112	PROFICIENCYSWORDANDSHIELD	PROFICIENCYSWORDANDSHIELD	PROFICIENCYSWORDANDSHIELD
113	PROFICIENCYSINGLEWEAPON	PROFICIENCYSINGLEWEAPON	PROFICIENCYSINGLEWEAPON
114	PROFICIENCY2WEAPON	PROFICIENCY2WEAPON	PROFICIENCY2WEAPON
115	EXTRAPROFICIENCY1	PROFICIENCYCLUB	PROFICIENCYCLUB
116	EXTRAPROFICIENCY2	WIZARD_SPELL_DEFLECTION^*	WIZARD_SPELL_DEFLECTION^*
117	EXTRAPROFICIENCY3	PROTECTION_FROM_EVIL^*	PROTECTION_FROM_EVIL^*
118	EXTRAPROFICIENCY4	TRUE_SIGHT^*	TRUE_SIGHT^*
119	EXTRAPROFICIENCY5	CLERIC_CHAOTIC_COMMANDS^*	CLERIC_CHAOTIC_COMMANDS^*
120	EXTRAPROFICIENCY6	CLERIC_INSECT_PLAGUE^*	CLERIC_INSECT_PLAGUE^*
121	EXTRAPROFICIENCY7	CLERIC_BLADE_BARRIER^*	CLERIC_BLADE_BARRIER^*
122	EXTRAPROFICIENCY8	CLERIC_PHYSICAL_MIRROR^*	CLERIC_PHYSICAL_MIRROR^*
123	EXTRAPROFICIENCY9	CLERIC_SHIELD_OF_THE_ARCHONS^*	CLERIC_SHIELD_OF_THE_ARCHONS^*
124	EXTRAPROFICIENCY10	CLERIC_REGENERATION^*	CLERIC_REGENERATION^*
125	EXTRAPROFICIENCY11	WIZARD_FIRE_SHIELD^*	WIZARD_FIRE_SHIELD^*
126	EXTRAPROFICIENCY12	WIZARD_PROTECTION_FROM_MAGIC_ENERGY^*	WIZARD_PROTECTION_FROM_MAGIC_ENERGY^*
127	EXTRAPROFICIENCY13	WIZARD_MISLEAD^*	WIZARD_MISLEAD^*
128	EXTRAPROFICIENCY14	WIZARD_PROTECTION_FROM_MAGIC_WEAPONS^*	WIZARD_PROTECTION_FROM_MAGIC_WEAPONS^*
129	EXTRAPROFICIENCY15	WIZARD_SPELL_TURNING^*	WIZARD_SPELL_TURNING^*
130	EXTRAPROFICIENCY16	WIZARD_PROTECTION_FROM_THE_ELEMENTS^*	WIZARD_PROTECTION_FROM_THE_ELEMENTS^*
131	EXTRAPROFICIENCY17	CLERIC_FREE_ACTION^*	CLERIC_FREE_ACTION^*
132	EXTRAPROFICIENCY18	WIZARD_KHELBENS_WARDING_WHIP^*	WIZARD_KHELBENS_WARDING_WHIP^*
133	EXTRAPROFICIENCY19	CLERIC_DEFENSIVE_HARMONY^*	CLERIC_DEFENSIVE_HARMONY^*
134	EXTRAPROFICIENCY20	EXTRAPROFICIENCY20	EXTRAPROFICIENCY20

Info:

Every STAT from 89 to 134 is a weapon proficiency, even the weapon styles.
Every one of those STATs can be set as a weapon's proficiency and it will use that stat's value for proficiency bonuses.
- This includes STATs like CLERIC_ARMOR_OF_FAITH^*, even though they're used for an alternative purpose.
  - The only thing stopping them from showing up during chargen/level-up proficiency selection is their entries (or lack there of) in WEAPPROF.2DA. A NAME_REF column of 4294967296 (-1) is hardcoded to hide the proficiency during chargen/level-up. Aside from that it just needs a non-zero maximum for the current class/kit.

Bug: In EE games, Type 99 – PROFICIENCYHALBERD currently cannot use the Increment option without crashing.

Important: In EE games, the Special field must currently be 0, due to an incomplete (bugged) feature added by Beamdog (it wasn't used before anyway, so there was no point in it not being 0).

Note: The Proficiency Modifier effect cannot increment or decrement proficiency points, it can only SET them.

This is however not true for EEs, where param#2 ('Type') is split into two word subfields. By setting the second (high) one to 1 (Increment), it’s possible to increment/decrement the proficiency points of the targeted creature(s) by the value specified by the Amount parameter.

#234 (0xEA) Spell Effect: Contingency Creation Variants: IWD1 IWD2 BG2
Parameter #1: Maximum Level Usable
Parameter #2: Amount/Type

Description:

Creates a custom spell contingency, storing a certain number of spells to be cast upon a specified condition.
The spells are stored using opcode #232, using Timing Mode 1 and Parameter3 set to 1.
The Maximum Level field indicates the maximum spell level that can be used in the contingency. The Amount/Type field indicates the number of spells that can be used in the contingency, and the type of the contingency.
Known values for the Amount/Type field are:

First word: Amount (1–3)
Second word:
- 0 ⟶ Chain Contingency (See opcode #232 for target and condition descriptions)
  - Target choices are limited to those listed in CONTTARG.2DA
  - Condition choices limited to those listed in CONTCOND.2DA.
- 1 ⟶ Normal Contingency
  - Target choice is limited to 0|Myself, and only if it's listed in CONTTARG.2DA.
  - Condition choices limited to those listed in CONTCOND.2DA.
- 2 ⟶ Sequencer
  - Functions as per opcode #257.

Important: As of v2.3, an entry for the Parent Resource or Activation Key must be added to the mageBookStrings{} lua table for the UI, or the game will crash upon use.

Note: The presence of this effect in any of a spell’s ability headers will force any Wild Surge of that spell to use the ‘Cast Normal’ result.

Note: This opcode only works from party-members.

#235 (0xEB) Spell Effect: Wing Buffet Variants: IWD1
Parameter #1: Speed
Parameter #2: Direction

Description:

Applies the wing buffet effect centred on the casting creature(s), buffeting the targeted creature(s) at the speed specified by the Speed field, in the direction specified by the Direction field. Speed ranges from 0 to 255.
Known values for Direction are:

0/1 ⟶ Away from the destination point (specified in EFF file)
2 ⟶ Away from the source
3 ⟶ Towards the destination point (specified in EFF file)
4 ⟶ Towards source

Important: The following animations are hardcoded to be immune to this effect:

Bug: The opcode also has this weird block:

	if (this->m_sourceRes.startsWith("SP")) {
		this->m_effectAmount = (100 - pSprite->m_derivedStats.m_nResistMagic) / 100 * (float)this->m_effectAmount;
		if (this->m_effectAmount == 0) {
			return 0; // Terminate
		}
	}

It's attempting to dampen the knockback speed with the target's magic resistance, but it fails at casting the first division to a float.
If the SPL resref starts with SP (see for instance "spin695.spl" — Wing Buffet) any positive magic resistance will make the Speed parameter 0, causing the opcode to immediately terminate.
Having said that, you can bypass this issue by having the SPL file starting with SP apply a secondary SPL file (for instance via opcode #146), and then by having the secondary SPL file apply opcode #235. Just make sure the secondary SPL resref does not start with SP.

Note: If used on creatures with the “pass-wall” effect applied, creatures can cross points marked as light obstacles on the search map.
In EEs, this effect can push creatures through closed (and locked) doors (this does not require the “pass-wall” effect).

Note: Direction options 1 and 3 “can” be overriden in external EFF files, but default to the ability target/location.

#236 (0xEC) Spell Effect: Image Projection Variants: IWD1 IWD2
Parameter #1: Undetermined
Parameter #2: Type

Description:

Creates an image (duplicate) of the caster, in the style specified by the Type field.
In particular:

The Image inherits any/only effects attached to the creature using Timing Mode 9
The Image has duplicates of all of the targeted creature(s) items that are flagged with DROPPABLE and not flagged with NONDROPABLE
All items on the Image are flagged with NONDROPABLE, so an image created by another image will have no items
If the targeted creature(s) is not a party memeber, saving is disabled so long as the image exists

Known values for Type are:

0 ⟶ Clone — Image created with the targeted creature(s) Current Hit Points and the following (in order)
- All AI scripts and Dialogues are set to "" (empty string, i.e. they will be cleared)
- Script Name (Death Variable) set to "COPY"
- Opcode #68 based on effect duration
- The creature is not immediately controllable, but will become controllable (if allied) after saving & reloading
1 ⟶ Mislead — Image created with the targeted creature(s) Maximum Hit Points and the following (in order)
- Allegiance set to ALLY, NEUTRAL, or ENEMY, depending on target allegiance
- Gender set to ILLUSIONARY
- All AI scripts and Dialogues are set to "" (empty string, i.e. they will be cleared)
- If the clone's allegiance is not ALLY, Class Script is set to 'Original Class Script' + 'M'. The script has to already exist (as a separate BCS file).
  - And the Class Script is only set if it wasn't originally null/empty — it will never be just "M"
  - If original Class Script is 8 characters long, the last letter will be replaced with "M"
  - If you look in BG2EE, you will see these files:
    - MAGE18A.BCS → MAGE18AM.BCS
    - MAGE18B.BCS → MAGE18BM.BCS
    - MAGE18C.BCS → MAGE18CM.BCS
    - MAGE18D.BCS → MAGE18DM.BCS
    The caster uses the first one, their Mislead clone uses the second one
- Script Name (Death Variable) set to "COPY"
- Opcode #68 based on effect duration
- Opcode #237^*p2=1: Puppet Stats, Mislead
- Opcode #145^*p2=0: Disable Spell Casting, Wizard
- Opcode #145^*p2=1: Disable Spell Casting, Priest
- Opcode #145^*p2=2: Disable Spell Casting, Innate
- Opcode #144^*p2=8: Disable Button (Use Item)
- Opcode #144^*p2=9: Disable Button (Quick Item 1)
- Opcode #144^*p2=11: Disable Button (Quick Item 2)
- Opcode #144^*p2=12: Disable Button (Quick Item 3)
- Opcode #144^*p2=13: Disable Button (Special Ability)
- Applies "MISLEAD.SPL"
2 ⟶ Project Image — Image is created with the targeted creature(s) Current Hit Points and the following (in order)
- Allegiance set to ALLY, NEUTRAL, or ENEMY, depending on target allegiance
- Gender set to ILLUSIONARY
- All AI scripts and Dialogues are set to "" (empty string, i.e. they will be cleared)
- Script Name (Death Variable) set to "COPY"
- Opcode #68 based on effect duration
- Opcode #237^*p2=2: Puppet Stats, Project Image
- Applies "PROJIMAG.SPL"
3 ⟶ Simulacrum — Image is created with the targeted creature(s) Current Hit Points and the following (in order)
- Allegiance set to ALLY, NEUTRAL, or ENEMY, depending on target allegiance
- Gender set to ILLUSIONARY
- All AI scripts and Dialogues are set to "" (empty string, i.e. they will be cleared)
- Script Name (Death Variable) set to "COPY"
- Opcode #68 based on effect duration
- Opcode #216
- Opcode #237^*p2=3: Puppet Stats, Simulacrum
- Applies "SIMULACR.SPL"
4+ ⟶ As 0

Bug: Simulacrum is supposed to apply a level-drain effect to the clone equal to floor(ceil(average of LEVEL, LEVEL2, LEVEL3) * factor). The factor appears to be 50% in original games and 40% in EEs. However in EEs, the code is bugged for dual class characters — instead of using the character’s average level it uses the level count of the first class in the dual class name.

This means dual class mages usually end up with Simulacrums that are substantially more powerful than intended.

Note: Keep in mind that if the caster is equipped with an irremovable item (e.g., Edwin’s Amulet), then its images will not inherit any bonuses/maluses from that specific item.

#237 (0xED) Spell Effect: Puppet ID Variants: IWD1 IWD2
Parameter #1: Master ID
Parameter #2: Image Type

Description:

This effect stores information for images created by opcode #236.
Known values for Master ID are:

-1 ⟶ Not Party Member (Disables saving while in effect)
0 ⟶ Player1
1 ⟶ Player2
2 ⟶ Player3
3 ⟶ Player4
4 ⟶ Player5
5 ⟶ Player6

Known values for Image Type are:

0 ⟶ Clone
1 ⟶ Mislead
- Maintains STATE_INVISIBLE on Master ID. This state is constantly reapplied whenever removed or terminated.
2 ⟶ Project Image
- Maintains STATE_HELPLESS on Master ID. This state is constantly reapplied whenever removed or terminated.
- If Master ID triggers HitBy([ANYONE],0), this creature is moved to area "NO_AREA.ARE". This will delete non-global creatures from the game, unless such an area has been added to the game.
3 ⟶ Simulacrum

Modifies PUPPETMASTERID to the Object ID of a projected image's Master. Object ID is the 4 byte long number stored at offset 0x27c of the CRE file, and can change.

Modifies PUPPETMASTERTYPE, to a value of Parameter2, on the creature specified by PUPPETMASTERID:

Stores the image type (Mislead, Projection, Simulacrum) of a creature's most recently created clone.

Modifies PUPPETTYPE, to a value of Image Type:

Stores the image type (Mislead, Projection, Simulacrum) of a such a creature.

PUPPETID is likewise set on the Master ID, to the image's Object ID (likely whichever image is most recent, if they have multiple images).

#238 (0xEE) Death: Disintegrate Variants: BGEE IWD1
Parameter #1: IDS Entry
Parameter #2: IDS File

Description:

Disintegrates the targeted creature(s), if the targeted creature(s) match the IDS Entry and in the specified IDS File, and if the targeted creature(s) hit-dice is less than those specified by the Dice Values.
Known values for IDS File are:

2 ⟶ EA.IDS
3 ⟶ GENERAL.IDS
4 ⟶ RACE.IDS
5 ⟶ CLASS.IDS
6 ⟶ SPECIFIC.IDS
7 ⟶ GENDER.IDS
8 ⟶ ALIGN.IDS
9 ⟶ KIT.IDS (EE-only)

#238 (0xEE) Death: Disintegrate Variants: BG2 IWD1
Parameter #1: IDS Entry
Parameter #2: IDS File

Description:

Disintegrates the targeted creature(s), if the targeted creature(s) match the IDS Entry and in the specified IDS File, and if the targeted creature(s) hit-dice is less than those specified by the Dice Values.
Known values for IDS File are:

2 ⟶ EA.IDS
3 ⟶ GENERAL.IDS
4 ⟶ RACE.IDS
5 ⟶ CLASS.IDS
6 ⟶ SPECIFIC.IDS
7 ⟶ GENDER.IDS
8 ⟶ ALIGN.IDS
9 ⟶ KIT.IDS

#239 (0xEF) Spell Effect: Farsight Variants: IWD1 IWD2
Parameter #1: Irrelevant
Parameter #2: Type

Description:

Allows viewing of the current area, based on the Type field.
Known values for Type are:

0 ⟶ View explored sections only
1 ⟶ View explored section and unexplored sections

Note: Effect needs to target a creature. Opcode still non-functional in SoD v2.5.

#240 (0xF0) Graphics: Remove Special Effect Icon Variants: IWD1 IWD2
Parameter #1: Irrelevant
Parameter #2: Icon

Description:

Removes the icon specified by the Icon field.
Known values for Icon are: see opcode #142.

Important: Only removes opcode #142 effects, with a matching param2 value. Cannot remove portrait icons generated by any other mechanic.

Note: In EE games, can also remove opcode #177/opcode #283 effects if their EFF file uses opcode #142 with a matching param2 value.

#241 (0xF1) Charm: Control Creature Variants: IWD1
Parameter #1: Creature ID
Parameter #2: Charm Type

Description:

As opcode #5.

#242 (0xF2) Cure: Confusion Variants: IWD1 IWD2
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Removes STATE_CONFUSED and opcode #128 effects from the targeted creature(s).

#243 (0xF3) Item: Drain Item Charges Variants: BG2 IWD1 IWD2
Parameter #1: Amount to Drain
Parameter #2: Unused

Description:

Items will have their charges drained by Amount to Drain.
In particular:

Only Item Abilities of type Magical are drained.
Only items with flag MAGIC can be drained.
Items flagged as INDESTRUCTIBLE are not drained.
Items with a Maximum Stack Size greater than 1 are not drained.
Items drained of all charges behave as dictated by their first Ability that is fully drained (the when drained field).
You can drain charges of a particular item if the resource field is used.

#244 (0xF4) Spell: Drain Wizard Spell Variants: IWD1 IWD2
Parameter #1: Number to Drain
Parameter #2: Irrelevant

Description:

Drains spells from a wizards memory. This effect always drains the highest level possible spell first and drains the number set by the Number to Drain parameter.

#245 (0xF5) Check For Berserk Variants: IWD1 IWD2
Parameter #1: Undefined
Parameter #2: Undefined

Description:

This effect enables a 1% chance of the targetted creature(s) going berserk on each attack it makes. This affect sets the berserk stat changes and then attaches opcode #246.
It sets CHECKFORBERSERK.

#246 (0xF6) Spell Effect: Berserking Variants: IWD1 IWD2
Parameter #1: Undetermined
Parameter #2: Undetermined

Description:

This effect appears to be a combination of opcode #3 and the Berserk portrait icon. This effect attaches opcode #247.
It also sets BERSERKSTAGE1.

#247 (0xF7) Spell Effect: Attack Nearest Creature Variants: IWD1
Parameter #1: Irrelevant
Parameter #2: Constant Value

Description:

Applies the attack nearest creature effect on the targeted creature(s).
This effect causes the targeted creature(s) to attack the nearest creature. The affected creature becomes berserk and its AI scripts stop running. Grants a +2 bonus to hit and damage with all weapons. Unlike opcode #3, this one can affect enemies as well.

This effect sets BERSERKSTAGE2 to Constant Value. It also sets the STATE_BERSERK flag.

Important: The Constant Value parameter should be non-zero.

Note: At least in EEs, the only difference between opcodes #3 and #247, is that opcode #247 will not force the creature(s) to use melee weapons, and is not removed by opcode #4 (Cure Berserk).

#248 (0xF8) Item: Set Melee Effect Variants: IWD1 IWD2
Parameter #1: Irrelevant
Parameter #2: Fist only

Description:

Sets the effect specified by the resource key as a melee effect.
The specified effect will be applied to the target of each successful melee attack.
The resource key references a EFF not a SPL.

Important: EFF files applied by this opcode can be blocked by opcode #101.

Note: At least in EEs, setting parameter2 to 4 (i.e., BIT2) results in restricting this effect to fists only. If you leave it at 0, then all melee weapons are eligible (including fists).

Note: It will always apply to both main and offhand weapon.

Note: This opcode applies its effect inbetween base weapon damage and the on-hit effects of the weapon.

#249 (0xF9) Item: Set Ranged Effect Variants: IWD1 IWD2
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Sets the effect specified by the resource key as a ranged effect.
The specified effect will be applied to the target of each successful ranged attack.
The resource key references a EFF not a SPL.

Important: EFF files applied by this opcode can be blocked by opcode #101.

Note: At least in EEs, this opcode applies its effect after both the base weapon damage and the on-hit effects of the weapon.

#250 (0xFA) Spell Effect: Damage Modifier Variants: IWD1 IWD2
Parameter #1: Damage Modifier
Parameter #2: Irrelevant

Description:

Applies the Damage Modifier value to the damage caused by the targetted creature(s). The effect works as a minimum damage value, i.e. at least Damage Modifier damage will always be caused (on a successful hit).

The effect modifies DAMAGELUCK.

Info: This opcode works in the same manner as luck (and stacks with it), except that it only affects base weapon damage. It can be positive or negative.

#251 (0xFB) Spell Effect: Change Bard Song Effect Variants: IWD1 IWD2
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Sets the Bard Song of the targeted creature to the spell specified by the resource key.
On non-EE games, the default Bard Song applies the following effects:

All effects are added to the entire party with Timing Mode 4096 (end at ticks) and duration = nGameTime + 100
Display Special Effect Icon
- param2 (Icon) = 40 Bard Song
Morale Modifier – Sets the Morale stat of the targetted creature(s) to 10.
- param1 (Ignored) = 10
- param2 (Ignored) = 0
Cure Horror
- param1 (Irrelevant) = 1
- param2 (Irrelevant) = 0
Protection from Opcode
- param1 (Irrelevant) = 1
- param2 (Opcode) = 24 (State: Horror)

On EE games, the default bardsong has been externalized to "BARDSONG.SPL".

#252 (0xFC) Spell Effect: Set Trap Variants: IWD1 IWD2 BG2
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Attempts to set the spell specified by the resource key as a trap.
In particular:

If the caster is a party member, the number of traps in the current area must not exceed their class limit specified in TRAPLIMT.2DA.
Feedback string STRREF_FEEDBACK_SNAREFAILED_TOOMANY will be displayed if there are too many.
The caster cannot have any hostile creatures within their own visual range.
Feedback string STRREF_FEEDBACK_SNAREFAILED_ENEMIES will be displayed if there are enemies in sight.
If the caster succeeds the skill check, Feedback string STRREF_FEEDBACK_SNARESUCCEEDED will be displayed (and the spell specified by the resource key cast).
If the caster fails the skill check, Feedback string STRREF_FEEDBACK_SNAREFAILED will be displayed.
If the caster has a critical failure, then they are struck by spell 'Resource' + 'F'.

Note: Feedback from this effect is only given when used by party members.

#253 (0xFD) Spell Effect: Add Map Marker Variants: IWD1 IWD2
Parameter #1: String Reference
Parameter #2: Marker Color

Description:

Applies the set map marker effect.

The String Reference parameter is a string reference to the dialog.tlk file that sets what the marker says when the marker is read. The Target of this effect should be set to Self to function correctly.

The "Marker Color" parameter corresponds to the marker images in flag1.bam. In BG2 it can be one of:

0 - Gray (default value)
1 - Violet
2 - Green
3 - Orange
4 - Red
5 - Blue
6 - Dark Blue
7 - Light Gray

And in EEs, one of:

0 - Black (default value)
1 - Grey (slate)
2 - Red
3 - Green
4 - Yellow
5 - Blue (tel)
6 - Purple
7 - Orange (salmon)
8 - Cyan

Important: This effect works in SoA but not ToB. Works fine in EE's.

#254 (0xFE) Spell Effect: Remove Map Marker Variants: IWD1
Parameter #1: String Reference
Parameter #2: Irrelevant

Description:

Applies the remove map marker effect. This effect removes the map marker (if any) at the position the effect is cast. The Target of this effect should be set to Pre-Target to function correctly (actually, it can work with Self, might depend on how you are using it).

The String Reference field should match opcode #253 StrRef to be removed. Opcode #254 needs to be cast on exact coordinates as opcode #253.

Important: This effect works in SoA but not ToB. Works fine in EE's.

#255 (0xFF) Item: Create Inventory Item (days) Variants: IWD1
Parameter #1: Charges
Parameter #2: Irrelevant

Description:

Creates the item specified by the resource key. The number of items created is controlled by the Charges field. The number of secondary charge is determined by Parameter3. The number of tertiary charges is determined by Parameter4 (external EFFs). The item is created in the Inventory, and has the can not steal bit set.

Note: The difference from opcode #122 is that when used in an external EFF, the duration (from the calling file) is specified in days.

#256 (0x100) Spell: Spell Sequencer Active Variants: BG2 IWD1
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

This effect stores the spell resources for an active spell sequencer. These resources are stored in the resource key, VVC field (resource2), and resource3.
This effect stores spells to be cast through opcode #258 and opcode #260.
When used in an external EFF file, known values for Parameter3 (Type) are:

0 ⟶ Hidden – this sequencer is not viewable in the MageBook 'Contingency' screen, and is not removed when activated.
1 ⟶ Displayed – this sequencer is viewable in the MageBook 'Contingency' screen, and is removed when activated.

When used in an external EFF file, Parent Type (Source Type) may be manually set to influence its behavior. Known values for Parent Type are:

0 ⟶ None – Allows further effects with a matching "Parent Resource" to affect the target.
1 ⟶ Spell – Any further effects with a matching "Parent Resource" will be blocked by the engine and string STRREF_ERROR_CAN_NOT_CAST_TWO_CONT is returned to the combat log.
2 ⟶ Item – Allows further effects with a matching "Parent Resource" to affect the target.

When used in an external EFF file, Parent Resource (Activation Key) must be manually set to influence its behavior.
The Activation Key is the "Resource" to be referenced by the effect(s) that will activate this sequencer.
When set manually, it cannot contain lowercase characters, it MUST be in ALLCAPS, numbers, and/or symbols, or the sequencer cannot be activated.

Note: The presence of this effect in any of a spell’s ability headers will force any Wild Surge of that spell to use the ‘Cast Normal’ result.

Note: Activation Key does not have to reference an actual spell or item resource, it can be any valid string, so long as the effects involved (256/257 and 258/260) use the exact same string.

#257 (0x101) Spell: Spell Sequencer Creation Variants: BG2 IWD1
Parameter #1: Maximum Level Usable
Parameter #2: Amount

Description:

Creates a custom spell sequencer, storing a certain number of spells for later use.
It applies opcode #256 to the caster upon completing the spell selection process, and at the same time it grants you the -D or -P subspell (via opcode #171). In particular:

if all of the sequenced spells use Ability Target 4 (Target Point), it will grant spell 'Parent' + 'P' (provided such a spell exists – for instance: SPWI420P),
otherwise it will grant spell 'Parent' + 'D' (for instance: SPWI420D).

The chosen spells are stored using opcode #256, using Timing Mode 1 (regardless of timing mode for opcode #257) and Parameter3 set to 1.
The Maximum Level field indicates the maximum spell level that can be used in the sequencer. The Amount field indicates the number of spells that can be used in the sequencer.

When used in an external EFF file, Parent Type (Source Type) may be manually set to influence its behavior. Known values for Parent Type are:

0 ⟶ None – Allows further effects with a matching "Parent Resource" to affect the target.
1 ⟶ Spell – Any further effects with a matching "Parent Resource" will be blocked by the engine and string STRREF_ERROR_CAN_NOT_CAST_TWO_CONT is returned to the combat log.
2 ⟶ Item – Allows further effects with a matching "Parent Resource" to affect the target.

When used in an external EFF file, Parent Resource (Activation Key) must be manually set to influence its behavior.
When set manually, it cannot contain lowercase characters, it MUST be in ALLCAPS, numbers, and/or symbols, or the sequencer cannot be activated.

If not used in an external EFF, the Activation Key will be the "Parent Resource".
If used in an external EFF, the Activation Key must be explicitly specified, but doesn't need to match its actual "Parent Resource".
For the vanilla spells, the Activation Key is always the parent spell of opcode #257.

Important: As of v2.3, an entry for the "Parent Resource" or "Activation Key" must be added to the mageBookStrings{} lua table, or the game will crash upon use.

Important: The filename of a spell containing this effect should be no more than 7 characters.

Note: The presence of this effect in any of a spell’s ability headers will force any Wild Surge of that spell to use the ‘Cast Normal’ result.

Note: Activation Key does not have to reference an actual spell or item resource, it can be any valid string, so long as the effects involved (256/257 and 258/260) use the exact same string.

#258 (0x102) Spell: Spell Sequencer Activation Variants: IWD1 IWD2 BG2
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Activates a spell sequencer at a single target.
Activates any opcode #256 effects with a matching resource (Activation Key) of the targeted creature(s).
When used in combination with opcode #257 (Spell Sequencer Creation):

The resource key must be set to the filename of the spell which contains the Spell Sequencer Creation effect.
The spell which contains the Spell Sequencer Creation effect can have a maximum filename of 7 characters.
The spell which contains the Spell Sequencer Activation effect must have the same filename, suffixed with the D character, and should be an innate ability. For instance:
- Spell Sequencer Creation filename = SPWI420
- Spell Sequencer Activation filename = SPWI420D

Those spells are cast by the targeted creature(s) at "this" ability's target.
For each stored spell, "this" ability's target must be within range of that spell, or it will fail.

All opcode #256 effects with a matching Activation Key are removed if their Parameter3 = 1 (those created by opcode #257 / opcode #234 have this value set to 1 by default).

Note: This opcode will fail if delivered directly in an area effect projectile (though it may still target “self” or be used in subsequent non-AoE subspells).

Note: Activation Key does not have to reference an actual spell or item resource, it can be any valid string, so long as the effects involved (256/257 and 258/260) use the exact same string.

#259 (0x103) Protection: Spell Trap (by Power Level, decrementing) Variants: IWD1 IWD2
Parameter #1: Total Amount
Parameter #2: Power Level

Description:

Applies the spell-trap effect to the targeted creature(s), absorbing a number of effects as specified by the Total Amount field, of the level specified by the Power Level field, and recalling previously cast spells.

The Power level of the first effect to trigger any instance of this opcode's trap will determine how much this opcode's Total Amount is decremented. Every instance of this opcode on the creature will be decremented by this amount.

On EE games, resource field ⟶ Spell cast when this effect self-terminates, default = Parent + "B".

Info:

CANNOT trap effects of Secondary Type MagicAttack.
- V1 effects inherit their Secondary Type from the Header(SPL) / Extended Header(ITM), V2 effects specify it manually.
CANNOT trap EFF files with resist_dispel = BIT2.
- Keep in mind that this BIT is automatically set on any effect delivered by an Area-Effect (Explosion) projectile, so this opcode cannot trap effects through AoE projectiles.
CANNOT trap effects from self.
Maintains portrait icon Spell Trap on the target.
Maintains animation SPMAGGLO on the target, can be suppressed by opcode #291.
When it traps an effect, it applies opcode #261 to the target.
- Parameter1 is the Power level of the trapped effect, Parameter2 is always 0|Wizard.

Note: EFF files delivered by opcode #177/opcode #283 will interact with Trapping separately from the opcode #177/opcode #283 effect that applies them, and only if that opcode #177/opcode #283 effect already got through. If the opcode #177/opcode #283 effect is trapped, then the values in the EFF file won’t matter. Most vanilla EFF files have these fields set to empty/zero to avoid interacting with this opcode.

#260 (0x104) Spell: Spell Sequencer Activation Variants: BG2 IWD1
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Activates a spell sequencer at a target point.
Activates any opcode #256 with a matching resource (Activation Key) of the targeted creature(s).
When used in combination with opcode #257 (Spell Sequencer Creation):

The resource key must be set to the filename of the spell which contains the Spell Sequencer Creation effect.
The spell which contains the Spell Sequencer Creation effect can have a maximum filename of 7 characters.
The spell which contains the Spell Sequencer Activation effect must have the same filename, suffixed with the P character, and should be an innate ability. For instance:
- Spell Sequencer Creation filename = SPWI420
- Spell Sequencer Activation filename = SPWI420P

Those spells are cast by the targeted creature(s) at "this" ability's target.
For each stored spell, "this" ability's target must be within range of that spell, or it will fail.

All opcode #256 effects with a matching Activation Key are removed if their Parameter3 = 1 (those created by opcode #257 / opcode #234 have this value set to 1 by default).

Note: Activation Key does not have to reference an actual spell or item resource, it can be any valid string, so long as the effects involved (256/257 and 258/260) use the exact same string.

#261 (0x105) Spell: Restore Lost Spells Variants: IWD1
Parameter #1: Spell Level
Parameter #2: Spell Type

Description:

Applies the restore lost spell effect to the targeted creature(s).
This effect will restore 1 spell to memory, at the level specified by the Spell Level field, and of the type specified by the Spell Type field. If there is no free slot at the specified level, the effect restores a spell at the next lowest level possible.
Known values for Spell Type are:

0 ⟶ Wizard / Bard / Sorcerer
1 ⟶ Cleric / Druid / Shaman

#262 (0x106) Stat: Visual Range Variants: IWD1 IWD2
Parameter #1: Statistic Modifier
Parameter #2: Type

Description:

Applies the visual range effect to the targeted creature(s).
This effect modifies the visual range of the targeted creature(s).
The Statistic Modifier parameter seems to be in the 0–15 interval.
Known values for Type are:

0 ⟶ Cumulative Modifier: Visual Range = Visual Range + 'Statistic Modifier' value
1 ⟶ Flat Value Modifier: Visual Range = 'Statistic Modifier' value

The effect modifies VISUALRANGE.

Info: With relation to this effect:

Each unit of visible range equals 2ft: 32px(horizontal)/24px(vertical)
Default Visual Range = 14
Maximum visual range to reveal "Fog of War" = 23

#263 (0x107) Stat: Backstab Variants: IWD1
Parameter #1: Statistic Modifier
Parameter #2: Type

Description:

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

0 ⟶ Cumulative Modifier: Backstab = Backstab + 'Statistic Modifier' value
1 ⟶ Flat Value Modifier: Backstab = 'Statistic Modifier' value
2 ⟶ Percentage Modifier: Backstab = (Backstab * 'Statistic Modifier' value) / 100

#264 (0x108) Spell Effect: Drop Weapons in Panic Variants: IWD1 BG2
Parameter #1: Irrelevant
Parameter #2: Type

Description:

Applies the drop weapons effect to the targeted creature(s), in the style specified by the Type field.
This effect causes the targeted creature(s) to drop a piece of equipment.
Known values for Type are:

0 ⟶ Drop random equipment
1 ⟶ Drop weapons from Quick-Weapon Slot (slots #35 – #38)

Note: Can drop items located in the Magical Weapon Slot if they are not flagged properly.
Will never drop items:

located in slot SLOT_FIST.
flagged as INDESTRUCTIBLE.
NOT flagged as DROPPABLE.
flagged as NONDROPABLE.

#265 (0x109) Script: Modify Global Variable Variants: IWD1
Parameter #1: Value
Parameter #2: Type

Description:

Alters the global variable specified by the resource key, in the style specified by the Type field, by the value specified by the Value field.
Known values for Type are:

0 ⟶ Set Global (to Value)
1 ⟶ Increment Global (by Value)

Note:

Since the Resource Key can only be 8 characters long maximum, you can not set a Global Variable with this effect that has a name longer than this amount.
- You can use the VVC field of external EFF files for an additional 8 characters of variable name.
  - You can use the 3^rdresource field of external EFF files for an additional 8 characters of variable name.

Note: All timing modes act as permanent for this effect.

Note: Value can store integers or coordinates. Coordinates are stored as first 2 bytes X, last 2 bytes Y (f.i.: 310 + (30 << 16)).

Warning: Make sure to set target. Target: Self (1) works well. If target is unset (0), the game will freeze.

#266 (0x10A) Spell: Remove Protection from Spell Variants: IWD1
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Removes opcode #206 with matching resource keys.

Note: At least in BG2 and EEs, this effect can remove opcode #177/opcode #283 when EFF file uses opcode #206 and matching resource.

#267 (0x10B) Text: Protection from Display Specific String Variants: IWD1
Parameter #1: String Reference
Parameter #2: Irrelevant

Description:

Prevents the strref specified by the String Reference field being displayed by the targeted creature(s).

Important: Only grants immunity to opcode #139 effects with a matching String Reference value.
Cannot block string displays from any other mechanic.

#268 (0x10C) Spell Effect: Clear Fog of War (Wizard Eye) Variants: IWD1
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Applies the clear fog of war effect on the targeted creature(s).
The targeted creature(s) will be able to explore like a PC does.

This effect sets EXPLORE to 1.

Important: Only 8 creatures in a given area can fully clear fog of war, with priority going to party members.

#269 (0x10D) Spell Effect: Shake Window Variants: IWD1
Parameter #1: Strength
Parameter #2: Undetermined

Description:

Applies the shake windows effect, with an intensity specified by the Strength field.

#270 (0x10E) Cure: Unpause Target Variants: IWD1
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Removes the pause effect from the targeted creature(s).

#271 (0x10F) Graphics: Avatar Removal Variants: IWD1 BG2
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Hides the creature's animation and selection circle, including illusionary images (Blur / Mirror Image).
Disables the creature's AI scripts.
The creature cannot take any action not listed in INSTANT.IDS (usually through ActionOverride()).
The creature is still subject to area effect and may still be targeted directly by mouseover.

#272 (0x110) Spell: Apply Repeating EFF Variants: IWD1 BG2
Parameter #1: Amount_1
Parameter #2: Type
Parameter #3: Amount_2
Parameter #4: Frequency Multiplier
Special: Icon

Description:

Applies the EFF specified by the resource key to the targeted creature(s) as specified by the Type field.
Known values for Type are:

0 ⟶ Apply once per second
- Amount_2 and Frequency Multiplier are ignored — Amount_1 needs to be non-zero
1 ⟶ Unknown (see below for further details)
2 ⟶ Apply Amount_1 times every Frequency Multiplier second(s)
3 ⟶ Apply once every 'Amount_1' * 'Frequency Multiplier' second(s)
4 ⟶ Apply Amount_2 times every 'Amount_1' * 'Frequency Multiplier' second(s) — This is the only one that must be in external EFF files
5+ ⟶ Crash

Icon defines the index from STATDESC.2DA for custom portrait icons. Default value is None (no icon).

Important: EFF files applied by this opcode can be blocked by opcode #101.

Info: The timings are relative to the movement rate of the affected creature(s). opcode #40 (Slow) and opcode #78 (Disease) doubles the timing rate, effect opcode #16 (Haste) halves the timing rate.

Important: This opcode does not have any function when Type = 1, thought the effect is still present (it doesn't just instantly terminate), and will generate a portrait icon if Icon is non-zero.

Info: If Frequency Multiplier = 0, its value is treated as 1. This is the default value for SPL/ITM effects.

#273 (0x111) Remove: Specific Area Effect(Zone of Sweet Air) Variants: IWD1
Parameter #1: Undetermined
Parameter #2: Undetermined

Description:

Removes projectiles listed in CLEARAIR.2DA.

Note: At least in EEs, If the resource field is filled, it will use a custom 2DA file to determine which projectiles to remove.
The custom 2DA file must be structured as "CLEARAIR.2DA".

#274 (0x112) Spell Effect: Teleport to Target Variants: IWD1
Parameter #1: Undetermined
Parameter #2: Undetermined

Description:

Teleports the affected creature(s) to a random enemy (i.e. party members would teleport to a red circled creature, red circled creatures teleport to the party). Enemy needs to be within visual range, but can be invisible.

#275 (0x113) Stat: Hide in Shadows Modifier Variants: IWD1
Parameter #1: Statistic Modifier
Parameter #2: Type

Description:

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

0 ⟶ Cumulative Modifier: Skill = Skill + 'Statistic Modifier' value
1 ⟶ Flat Value Modifier: Skill = 'Statistic Modifier' value
2 ⟶ Percentage Modifier: Skill = (Skill * 'Statistic Modifier' value) / 100

Info: When Type = 0 and Timing Mode = 9, it modifies HIDEINSHADOWSMTPBONUS. The final value for this stat is multiplied by its percentage entry in THIEFSCL.2DA capped to the range [0,255], before being included in the creature’s Hide in Shadows score.

#276 (0x114) Stat: Detect Illusion Modifier Variants: IWD1 IWD2
Parameter #1: Statistic Modifier
Parameter #2: Type

Description:

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

0 ⟶ Cumulative Modifier: Skill = Skill + 'Statistic Modifier' value
1 ⟶ Flat Value Modifier: Skill = 'Statistic Modifier' value
2 ⟶ Percentage Modifier: Skill = (Skill * 'Statistic Modifier' value) / 100

Info: At least in EEs, when Type = 0 and Timing Mode = 9, it modifies DETECTILLUSIONSMTPBONUS. The final value for this stat is multiplied by its percentage entry in THIEFSCL.2DA capped to the range [0,255], before being included in the creature’s Detect Illusions score.

#277 (0x115) Stat: Set Traps Modifier Variants: IWD1
Parameter #1: Statistic Modifier
Parameter #2: Type

Description:

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

0 ⟶ Cumulative Modifier: Skill = Skill + 'Statistic Modifier' value
1 ⟶ Flat Value Modifier: Skill = 'Statistic Modifier' value
2 ⟶ Percentage Modifier: Skill = (Skill * 'Statistic Modifier' value) / 100

Info: At least in EEs, when Type = 0 and Timing Mode = 9, it modifies SETTRAPSMTPBONUS. The final value for this stat is multiplied by its percentage entry in THIEFSCL.2DA capped to the range [0,255], before being included in the creature’s Set Traps score.

#278 (0x116) Stat: To Hit Modifier Variants: IWD1
Parameter #1: Statistic Modifier
Parameter #2: Type

Description:

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

0 ⟶ Cumulative Modifier: To-hit = To-hit + 'Statistic Modifier' value
1 ⟶ Flat Value Modifier: To-hit = 'Statistic Modifier' value
2 ⟶ Percentage Modifier: To-hit = (To-hit * 'Statistic Modifier' value) / 100

Note: This effect adjusts modified THAC0, rather than the base stat.

#279 (0x117) Button: Enable Button Variants: IWD1
Parameter #1: Irrelevant
Parameter #2: Button

Description:

Enables the button specified by the Button field. The resource field acts as a matching key to the resource field of the Enable Button, allowing separate enable/disable reasons.
Known values for Button are:

0 ⟶ Stealth Button
1 ⟶ Thieving Skill Button
2 ⟶ Spell Select Button
3 ⟶ First Quick Spell Button
4 ⟶ Second Quick Spell Button
5 ⟶ Third Quick Spell Button
6 ⟶ Turn Undead Button
7 ⟶ Talk Button
8 ⟶ Use Item Button
9 ⟶ First Quick Item Button
10 ⟶ Bard Song Button (EE only)
11 ⟶ Second Quick Item Button
12 ⟶ Third Quick Item Button
13 ⟶ Innate Ability Button
14 ⟶ Find Traps Button
15 ⟶ Inventory Button (EE only)

Important: Removing opcode #144 is all it does, it cannot enable buttons disabled by other mechanics.

#280 (0x118) Spell Effect: Wild Magic Variants: IWD1
Parameter #1: Irrelevant
Parameter #2: Type

Description:

Applies the wild magic effect to the targeted creature(s).
This effect causes other spells to be subject to wild magic throws.
Known values for Type are:

1 ⟶ Affect next spell cast
2 ⟶ Affect all spells cast for effect duration

Note: Can only force Wild Surges on spells that are normally valid for them.
In particular, it doesn’t work for SPLs whose BIT14 is set to 1, subspells, as well as certain script actions – mostly the “instant-cast” ones.

Info: Type = 1 also maintains FORCESURGE to 1.

#281 (0x119) Stat: Wild Magic Variants: IWD1
Parameter #1: Statistic Modifier
Parameter #2: Type

Description:

This effect will alter the wild-surge roll, making the resultant effect either more or less beneficial.
Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

0 ⟶ Cumulative Modifier: Chance = Chance + 'Statistic Modifier' value
1 ⟶ Flat Value Modifier: Chance = 'Statistic Modifier' value
2 ⟶ Percentage Modifier: Chance = (Chance * 'Statistic Modifier' value) / 100

Info: At least in EEs, the final value is added to the inherint level-based bonus of the Wild Mage.

#282 (0x11A) Script: Scripting State Modifier Variants: IWD1
Parameter #1: Value
Parameter #2: Scripting State

Description:

Modifies Scripting State to the given value. Scripting State range from 0 to 35. The scripting state can be checked via scripts (see STATS.IDS) subtract 156 from the stat value to get the scripting state.

Info:

On non-EE games, this effect does not have proper bounds checking. It can therefore be used in unintended ways. For example scripting state 13 equals with the NO_CIRCLE attribute (stat=169), and scripting state 1139 ties to PICKPOCKET (stat=29).
EEs have proper bounds checking for this opcode, can only modify stats #156 – #200, except SUMMON_DISABLE_ACTION, not all values are a straight "subtract 156 from their stat".
- For best results, it should only be used for stats #156 – #165, as all others have dedicated opcodes and hardcoded effects.

#283 (0x11B) Use EFF File (Cursed) Variants: BG2 IWD1
Parameter #1: IDS Entry
Parameter #2: IDS File

Description:

Applies the EFF file specified by the resource key to the targeted creature(s), if the targeted creature(s) match the IDS Entry in the specified IDS File. The EFF can be removed via the Remove Curse opcode (in addition to other standard methods).
Known values for IDS File are:

2 ⟶ EA.IDS
3 ⟶ GENERAL.IDS
4 ⟶ RACE.IDS
5 ⟶ CLASS.IDS
6 ⟶ SPECIFIC.IDS
7 ⟶ GENDER.IDS
8 ⟶ ALIGN.IDS
9 ⟶ KIT.IDS

Important: EFF files applied by this opcode bypass / ignore opcode #101.

#284 (0x11C) Stat: Melee THAC0 Modifier Variants: IWD1
Parameter #1: Statistic Modifier
Parameter #2: Type

Description:

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

0 ⟶ Cumulative Modifier: THAC0 = THAC0 + 'Statistic Modifier' value
1 ⟶ Flat Value Modifier: THAC0 = 'Statistic Modifier' value
2 ⟶ Percentage Modifier: THAC0 = (THAC0 * 'Statistic Modifier' value) / 100

The effect modifies MELEE_THACO_BONUS.

#285 (0x11D) Stat: Melee Weapon Damage Modifier Variants: IWD1
Parameter #1: Statistic Modifier
Parameter #2: Type

Description:

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

0 ⟶ Cumulative Modifier: Damage = Damage + 'Statistic Modifier' value
1 ⟶ Flat Value Modifier: Damage = 'Statistic Modifier' value
2 ⟶ Percentage Modifier: Damage = (Damage * 'Statistic Modifier' value) / 100

The effect modifies MELEE_DAMAGE_BONUS.

#286 (0x11E) Stat: Missile Weapon Damage Modifier Variants: IWD1
Parameter #1: Statistic Modifier
Parameter #2: Type

Description:

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

0 ⟶ Cumulative Modifier: Damage = Damage + 'Statistic Modifier' value
1 ⟶ Flat Value Modifier: Damage = 'Statistic Modifier' value
2 ⟶ Percentage Modifier: Damage = (Damage * 'Statistic Modifier' value) / 100

The effect modifies MISSILE_DAMAGE_BONUS.

#287 (0x11F) Graphics: Selection Circle Removal Variants: IWD1
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Removes the selection circle from the targeted creature(s).

The effect modifies DISABLE_CIRCLE.

#288 (0x120) Stat: Fist THAC0 Modifier Variants: IWD1 IWD2
Parameter #1: Statistic Modifier
Parameter #2: Type

Description:

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

0 ⟶ Cumulative Modifier: THAC0 = THAC0 + 'Statistic Modifier' value
1 ⟶ Flat Value Modifier: THAC0 = 'Statistic Modifier' value
2 ⟶ Percentage Modifier: THAC0 = (THAC0 * 'Statistic Modifier' value) / 100

The effect modifies FIST_THACO_BONUS.

#289 (0x121) Stat: Fist Damage Modifier Variants: IWD1 IWD2
Parameter #1: Statistic Modifier
Parameter #2: Type

Description:

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

0 ⟶ Cumulative Modifier: Damage = Damage + 'Statistic Modifier' value
1 ⟶ Flat Value Modifier: Damage = 'Statistic Modifier' value
2 ⟶ Percentage Modifier: Damage = (Damage * 'Statistic Modifier' value) / 100

The effect modifies FIST_DAMAGE_BONUS.

#290 (0x122) Text: Change Title Variants: IWD1 IWD2 BG2
Parameter #1: String Reference
Parameter #2: Position
Special: Class

Description:

Changes the title of the targeted creature(s), to the strref specified by the String Reference field, at the location specified by the Position field.
Known values for Position are:

0 ⟶ Records Screen information section
1 ⟶ Various character screens (eg. Inventory and Records Screen)

The effect modifies CLASS_STRING_OVERRIDE_MIXED and CLASS_STRING_OVERRIDE_LOWER.
Class specifies which classes title is replaced (values are from CLASS.IDS).

#291 (0x123) Graphics: Disable Visual Effect Variants: IWD1 IWD2
Parameter #1: Irrelevant
Parameter #2: Stat Value

Description:

Blocks the hardcoded animations applied by the following opcodes: 201, 204, 205, 223, 226, 259, 197, 198, 200, 202, 203, 207, 227, 228, 299. These are the SPTURNI2 and SPMAGGLO BAM animations.

The effect modifies PREVENT_SPELL_PROTECTION_EFFECTS to Stat Value.

Note: The Stat Value parameter can take any value. If you set it to 0, you will disable the effect (for its duration).

#292 (0x124) Protection: Backstab Variants: IWD1
Parameter #1: Irrelevant
Parameter #2: Stat Value

Description:

Makes the targeted creature(s) immune to backstabbing.

The effect modifies IMMUNITY_TO_BACKSTAB to Stat Value.

Note: The Stat Value parameter can take any value. If you set it to 0, you will disable the effect (for its duration).

#293 (0x125) Script: Enable Offscreen AI Variants: IWD1
Parameter #1: Irrelevant
Parameter #2: Stat Value

Description:

The targeted creature(s) will still run scripts when off-screen and out of combat.

The effect modifies PREVENT_AI_SLOWDOWN to Stat Value.

Note:

Creatures in EE run scripts as long as they are in the current area, opcode #293 does not alter this, nor allow their scripts to run while they are in different areas.
However, creatures without this opcode attached will run scripts at a considerably slower rate (about ⅓ or ¼ rate).
Moreover, it looks like off-screen creatures move only at halved speed (which might be true for other actions as well). With this opcode creatures seem to move and act at the same speed as on-screen.

Note: The Stat Value parameter can take any value. If you set it to 0, you will disable the effect (for its duration).

#294 (0x126) Spell Effect: Existance Delay Override Variants: IWD1
Parameter #1: Undefined
Parameter #2: Constant Value

Description:

Existance is the verbal constant group from 69 to 74 (or 70–74). These sounds are randomly played (for non global, alive characters, when not in cutscene or dialog). This stat tunes the frequency of these random strings.
Known values for Constant Value are:

-1 ⟶ no existance sounds
0 ⟶ standard existance sound frequency
Other values ⟶ random existance sound frequency (the higher the rarer)

Info: The effect modifies EXISTANCE_DELAY_OVERRIDE, unless Constant Value is set to 1.

#295 (0x127) Graphics: Disable Permanent Death Variants: IWD1
Parameter #1: Undefined
Parameter #2: Stat Value

Description:

This targeted creature(s) will never suffer a permanent death (and will therefore always remain resurrectable) – exceptions include petrification and freeze-death.

The effect modifies NO_PERMANENT_DEATH to Stat Value.
Timing Mode should be set to 9 (Permanent after Death).

Note: The Stat Value parameter can take any value. If you set it to 0, you will disable the effect (for its duration).

#296 (0x128) Graphics: Protection from Specific Animation Variants: IWD1
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Provides the targeted creature(s) with immunity to opcode #215 effects with a matching "Resource" specified by the resource key.

Note: It does not remove any opcode #215 effect already present on the targeted creature.

Important: It cannot block animations from any other source.

#297 (0x129) Spell Effect: Immunity to Turn Undead Variants: IWD2
Parameter #1: Undefined
Parameter #2: Stat Value

Description:

Makes the targeted creature(s) immune to the Turn Undead effect.

The effect modifies IMMUNE_TO_TURN_UNDEAD to Stat Value.

Note: The Stat Value parameter can take any value. If you set it to 0, you will disable the effect (for its duration).

#298 (0x12A) Spell Effect: Execute Script cut250a Variants: IWD2 BG2
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Executes script "cut250a.bcs". By default this script teleports the party to the Pocket Plane area (AR4500).

Warning: Game will become locked in cutscene mode if "cut250a.bcs" doesn’t exist.

#299 (0x12B) Spell Effect: Chaos Shield Variants: BG2
Parameter #1: Shield Amount
Parameter #2: Icon

Description:

This effect defends against wild surges and displays an associated icon as specified by the Icon parameter.
Known values for Icon are:

0 ⟶ Normal Chaos Shield
1 ⟶ Improved Chaos Shield

The effect modifies CHAOS_SHIELD.

Info: It displays animation "SPTURNI2.BAM" (Spell Turning Disk).

Info: It does not directly block opcode #281 (or opcode #280), it blocks the wild surge itself, which can be natural or forced.
Surges it prevents do not count towards the “Next Spell” option of opcode #280.

#300 (0x12C) Spell Effect: NPCBump
Parameter #1: Unknown
Parameter #2: Stat Value

Description:

This effect allows the targetted creature(s) to push other creatures out of the way while moving.

The effect modifies NPC_BUMP to Stat Value.

Note: The Stat Value parameter can take any value. If you set it to 0, you will disable the effect (for its duration).

#301 (0x12D) Stat: Critical Hit Modifier Variants: BG2
Parameter #1: Statistic Modifier
Parameter #2: Condition
Parameter #3: Weapon Category
Special: Attack Type

Description:

This effect improves the Critical Hit chances.
Critical hits will occur on a roll (on a 1d20) greater or equal to: 20 - 'Statistic Modifier'.
Known values for Condition are:

0 ⟶ Apply Critical Hit chance for both hands
1 ⟶ Apply Critical Hit chance only for this weapon

Known values for Attack Type are:

0 ⟶ Any attack type
1 ⟶ Melee attack only
2 ⟶ Ranged attack only
3 ⟶ Magical attack only

(External EFFs) Known values for Weapon Category are defined in ITEMCAT.IDS.

The effect modifies CRITICALHITBONUS.

Note: In v2.3 and prior, only the latest instance of this opcode applies. In v2.5+, all instances stack together.

#302 (0x12E) Item: Can Use Any Item Variants: BG2
Parameter #1: Irrelevant
Parameter #2: Stat Value

Description:

The targeted creature(s) can use any item.

The effect modifies USE_ANY_ITEM to Stat Value.

Note: The Stat Value parameter can take any value. If you set it to 0, you will disable the effect (for its duration).

Important: It does not bypass item restrictions from ITEM_USE.2DA, Ability Score/Level requirements, or to scribing spells of opposition schools.

#303 (0x12F) Spell Effect: Backstab Every Hit Variants: BG2
Parameter #1: Irrelevant
Parameter #2: Stat Value

Description:

The targeted creature(s) will backstab with every hit.

The effect modifies ASSASSINATE to Stat Value.

Note: The Stat Value parameter can take any value. If you set it to 0, you will disable the effect (for its duration).

Important: Creature must still be using a weapon valid for backstabbing.

Info:

Backstabs no longer require the creature to be invisible.
Sneak Attacks no longer require the creature to be flanking their target.

#304 (0x130) Mass Raise Dead
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

This effect will raise multiple dead Party Members (PCs).

#305 (0x131) Stat: THAC0 Modifier (Off-Hand)
Parameter #1: Statistic Modifier
Parameter #2: Type

Description:

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

0 ⟶ Cumulative Modifier: THAC0 = THAC0 + 'Statistic Modifier' value
1 ⟶ Flat Value Modifier: THAC0 = 'Statistic Modifier' value
2 ⟶ Percentage Modifier: THAC0 = (THAC0 * 'Statistic Modifier' value) / 100

#306 (0x132) Stat: THAC0 Modifier (On-Hand)
Parameter #1: Statistic Modifier
Parameter #2: Type

Description:

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

0 ⟶ Cumulative Modifier: THAC0 = THAC0 + 'Statistic Modifier' value
1 ⟶ Flat Value Modifier: THAC0 = 'Statistic Modifier' value
2 ⟶ Percentage Modifier: THAC0 = (THAC0 * 'Statistic Modifier' value) / 100

#307 (0x133) Ranger Tracking Ability
Parameter #1: Range
Parameter #2: Irrelevant

Description:

Activates the Tracking Ability. A string from TRACKING.2DA is shown, and arrows appear along the screen edge pointing to any creatures within range. The units of the range parameter are unknown.

Info: The arrow effect may be hardcoded to spell "SPCL922.SPL".

Note: The file TRACKING.2DA lists the string reference that shows what information is learned from using this effect for each area.

#308 (0x134) Protection: From Tracking Variants: BG2
Parameter #1: Radius
Parameter #2: Stat Value

Description:

Protects the targeted creature(s) from the Tracking arrows effect (has no effect on the area string displayed).

The effect modifies IMMUNE_TO_TRACKING to Stat Value.

Note: The Stat Value parameter can take any value. If you set it to 0, you will disable the effect (for its duration).

Warning: Using this effect While Equipped on an item will crash the game.

Important: Arrows do not display when using permanent or equipped timing modes.

Important: This effect is not saved to file, it will be lost if you save & reload.

Info: Radius: same scale as Area-Effect projectiles (16 units = 1ft).

#309 (0x135) Script: Modify Local Variable
Parameter #1: Value
Parameter #2: Type

Description:

Modifies the local variable specified by the resource key to the value specified by the Value field.
Known values for Type are:

0 ⟶ Set Local (to Value)
1 ⟶ Increment Local (by Value)

Info:

Since the resource key can only be 8 characters long maximum, you can not set a variable with this Effect that has a name longer than this amount.
- You can use the Resource 2 field of external EFF files for an additional 8 characters of variable name.
  - You can use the Resource 3 field of external EFF files for an additional 8 characters of variable name.
    - As a result, it cannot modify variables more than 24 characters long.

Info: This effect is always instantaneous (local variables are stored internally, not as effects, while the game is running). All local variables for a CRE are stored as opcode #187 effects on that CRE whenever the game is saved, which will trigger as soon as the game is loaded.

Info: Value can store integers or coordinates. Coordinates are stored as first 2 bytes X, last 2 bytes Y (f.i.: 310 + (30 << 16)).

#310 (0x136) Protection: from Timestop
Parameter #1: Irrelevant
Parameter #2: Stat Value

Description:

The targeted creature(s) becomes immune to time-stop.

The effect modifies IMMUNE_TO_TIME_STOP to Stat Value.

Note: The Stat Value parameter can take any value.
If you set it to 0, you will disable the effect (for its duration). For instance, a Time Stop spell that applies (to everyone) op#310 with Stat Value = 0 for 18s would trap those such as Demogorgon in the time stop.

Note: Creatures are naturally immune to their own Time Stop effects, without needing this effect or setting IMMUNE_TO_TIME_STOP.

#311 (0x137) Spell: Random Wish Spell
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

This effect casts a wish spell (SPWISH01 – SPWISH25), selected based on the casting creatures Wisdom attribute, as outlined below.

SPWISHxx    MinWis    MaxWis
01          10        25
02          10        25
03          10        25
04          10        25
05          0         25
06          10        25
07          0         25
08          15        25
09          0         25
10          0         25
11          0         25
12          0         25
13          0         25
14          0         25
15          15        25
16          0         25
17          0         25
18          0         17
19          0         9
20          0         17
21          0         17
22          0         9
23          0         9
24          0         9
25          0         25

#312 (0x138) Crash Variants: BG2
Parameter #1: Undefined
Parameter #2: Stat Value

Description:

The effect modifies IMMUNE_TO_SEQUESTER to Stat Value.

Note: The Stat Value parameter can take any value. If you set it to 0, you will disable the effect (for its duration).

#313 (0x139) High-Level Ability Denotation
Parameter #1: Undetermined
Parameter #2: Undetermined

Description:

This effect denotes that the high level ability specified by the resource key has been gained. Used for pre-requisites/count limits.

Info: Automatically applied by the engine when selecting HLAs, but can be manually applied for the same effect.

#314 (0x13A) Spell: Golem Stoneskin
Parameter #1: Amount
Parameter #2: Irrelevant

Description:

Gives the targeted creature(s) a number of protections from physical attacks, as specified by the Amount field.
This opcode maintains STONESKINSGOLEM to the amount of skins left.

Warning: Do not use this effect in conjunction with the Juggernaut Golem Manual as it will corrupt the use of that item.
In particular, the Juggernaut Golem "TOMEGOL4.CRE" is scripted by "TOMEGOL4.BCS" to Kill() itself if its Summoner and no Party Members have STONESKINSGOLEM set to a non-zero value.

#315 (0x13B) Graphics: Animation Removal
Parameter #1: Irrelevant
Parameter #2: Stat Value

Description:

This effect will remove the animation of the targeted creature(s).

The effect modifies STAT #201 to Stat Value.

Note: The Stat Value parameter can take any value. If you set it to 0, you will disable the effect (for its duration).

#316 (0x13C) Spell: Magical Rest
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

This effect will refresh spells and remove any fatigue.

#317 (0x13D) State: Haste 2
Parameter #1: Irrelevant
Parameter #2: Type

Description:

This effect is functionally identical to opcode #16. The only difference between the two is that some ITMs/SPLs/abilities will specifically block/remove opcode #16 but not opcode #317 (e.g., Monks are immune to opcode #16 but not opcode #317).

#318 (0x13E) Protection from Resource Variants: BG2
Parameter #1: Value
Parameter #2: Stat Type

Description:

The creature type specified by the Type field becomes immune to the spell or item specified in the Resource field. See opcode #324 for more information.

Info: This opcode can block EFF files too.
In order to do so, both the Resource field of opcode #318 and the Parent Resource field of the EFF file must be the same string (max. 8 character long). Unlike opcode #206, this one can innately block any type of resource (None/Spell/Item).

#319 (0x13F) Usability: Item Usability
Parameter #1: IDS Entry
Parameter #2: IDS File
Special: Description note

Description:

When Power is set to 1, this opcode restricts the item to creature(s) matching the object identifiers. When Power is set to 0, creature(s) matching the object identifiers cannot use the item. The string to display when an invalid creature attempts to use the item is held in 0x2C.
Known values for IDS File are:

2 ⟶ EA.IDS
3 ⟶ GENERAL.IDS
4 ⟶ RACE.IDS
5 ⟶ CLASS.IDS
6 ⟶ SPECIFIC.IDS
7 ⟶ GENDER.IDS
8 ⟶ ALIGN.IDS
9 ⟶ KIT.IDS
10 ⟶ Actor's name
11 ⟶ Actor's scripting name (8 maximum in resource field)

The message defined in Description note will be displayed whenever this opcode is triggered.

Info:

If IDS File is set to 10 and the strref held in parameter1 is set to "-1" (None), then you're targeting player-created characters (e.g., "CHARNAME").
If IDS File is set to 11 and no death variable is specified in the resource field, then you're targeting player-created characters (e.g., "CHARNAME").

Important: This opcode must be attached to the item itself, and does not work when applied in EFF files (such as through opcode 177).

#320 (0x140) Change Weather
Parameter #1: Weather
Parameter #2: Irrelevant

Description:

Changes the weather of the current area to the weather specified by Weather.
Known values for Weather are:

0 ⟶ Normal
1 ⟶ Rain
2 ⟶ Snow
3 ⟶ Fog (unimplemented)

#321 (0x141) Removal: Effects specified by Resource
Parameter #1: Irrelevant
Parameter #2: Type

Description:

Removes effects from the resource specified by the resource key, in the style specified by the Type field. Both SPL and ITM resources are considered.
Known values for Type are:

0 ⟶ Default
- Will remove effects applied with any Timing Mode
1 ⟶ Equipped effects list only
- Will only remove effects applied with Timing Mode 2
2 ⟶ Timed effects list only
- Will remove effects applied with any Timing Mode, excluding 2 and 9

Note:

It always needs to be the first effect for stacking prevention.
- Timing Mode should be either 0 with duration=0, or 1.
It will only look at effects attached directly to the creature.
- Any EFF file filtered through an opcode #177/opcode #182/opcode #183 effect will not be looked at.
  - Only the opcode #177/opcode #182/opcode #183 effect itself will be checked.
- Any EFF file applied by an opcode #248/opcode #249/opcode #272 effect will be looked at, as they get attached directly to the corresponding creature.

Important: If an ITM file and a SPL file share the same resref (f.i. "spwi112.itm" , "spwi112.spl"), and the resource field of this opcode is set to "spwi112", then it will remove effects from both resources (the engine doesn't care about the extension when checking the resource field).

You might want to keep it mind when using this opcode (you can potentially break things…)

Warning: Leaving the resource field empty will remove any effect on the creature without a parent resource. Weapon proficiencies, HLA markers, stealth, turn undead (paladin’s panic only) … Local variable effects are however safe.

#322 (0x142) Empty
Parameter #1: Unknown
Parameter #2: Unknown

Description:

Unused.

Note: It is still processed, so it will still interact with Spell Turning/Deflection/etc… just like any other effect.

#323 (0x143) Stat: Turn Undead Level
Parameter #1: Statistic Modifier
Parameter #2: Type

Description:

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

0 ⟶ Cumulative Modifier: TurnLevel = TurnLevel + 'Statistic Modifier' value
1 ⟶ Flat Value Modifier: TurnLevel = 'Statistic Modifier' value
2 ⟶ Percentage Modifier: TurnLevel = (TurnLevel * 'Statistic Modifier' value) / 100

The effect modifies TURNUNDEADLEVEL.

However, this stat does NOT include the amount provided by cleric/paladin levels (effective turn undead level = TURNUNDEADLEVEL + cleric/paladin turn amount).

Note: Only Clerics and Paladins will display their Turn Undead level on the Record Screen.

#324 (0x144) Protection: Immunity to Resource and Message
Parameter #1: Value
Parameter #2: Stat Type

Description:

The creature type specified by the Type field becomes immune to the spell or item specified in the Resource field. It also gives a message on successful resist.
Known values for Stat Type are defined in SPLPROT.2DA. SPLPROT.2DA uses three codes (labeled STAT, VALUE and RELATION) to define a targeting type.

STAT is either a straight stat value (listed in STATS.IDS) or a pseudo stat of the to be targeted creature:

0x100 ⟶ source equals target
0x101 ⟶ source is not target
0x102 ⟶ circle size
0x103 ⟶ use two rows of SPLPROT.2DA
0x104 ⟶ negate 0x103
0x105 ⟶ source and target morale match
0x106 ⟶ AREATYPE.IDS (like outdoors, forest, etc)
0x107 ⟶ time of day (in hours)
0x108 ⟶ source and target ethical match
0x109 ⟶ evasion
0x10a ⟶ EA.IDS
0x10b ⟶ GENERAL.IDS
0x10c ⟶ RACE.IDS
0x10d ⟶ CLASS.IDS
0x10e ⟶ SPECIFIC.IDS
0x10f ⟶ GENDER.IDS
0x110 ⟶ ALIGN.IDS
0x111 ⟶ STATE.IDS
0x112 ⟶ SPLSTATE.IDS
0x113 ⟶ source and target allies
0x114 ⟶ source and target enemies
0x115 ⟶ summon creature limit
0x116 ⟶ chapter check

VALUE is a number used to compare to the stat using a relational operator. Depending on the stat/operator it could be a bit value (hexadecimal allowed). If value is set to "-1", then Value of the opcode will be used.

RELATION is an index to a relational operator:

0 ⟶ less or equal
1 ⟶ equal
2 ⟶ less
3 ⟶ greater
4 ⟶ greater or equal
5 ⟶ not equal
6 ⟶ binary less or equal (stat doesn't contain extra bits not in value)
7 ⟶ binary more or equal (stat contains all bits of value)
8 ⟶ binary match (at least one bit is common)
9 ⟶ binary not match (none of the bits are common)
10 ⟶ binary more (stat contains at least one bit not in value)
11 ⟶ binary less (stat doesn't contain all the bits of value)

Info: This opcode can block EFF files too.
In order to do so, both the Resource field of opcode #324 and the Parent Resource field of the EFF file must be the same string (max. 8 character long). Unlike opcode #206, this one can innately block any type of resource (None/Spell/Item).

Note:

As of v2.6, the name of the correct resource is displayed instead of the name of the resource the effect instance is located in.
When displaying its feedback message, it will attempt to identify the name of the parent spell if this effect is located in a child spell with no name. It does in the following manner: if the effect is used within a spell that has no name but there is a spell in the game whose resname is one character shorter with a valid name, then it will display that name. This feature is used by Sunfire ("SPWI523D.spl") in IWD:EE to check for thief evasion.

This feature will also attempt to look for an identical "resname.itm" and display that (identified/unidentified) name if the .spl the effect is in doesn't have a valid name.

#325 (0x145) Stat: Save vs. all
Parameter #1: Statistic Modifier
Parameter #2: Type

Description:

Alters all saving throws by the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

0 ⟶ Cumulative Modifier: Save = Save + 'Statistic Modifier' value
1 ⟶ Flat Value Modifier: Save = 'Statistic Modifier' value
2 ⟶ Percentage Modifier: Save = (Save * 'Statistic Modifier' value) / 100
3 ⟶ Increment Instantly: Save = Save + 'Statistic Modifier' value

Statistic Modifier can be positive or negative.

Info: When Type = 3, this opcode processes before saving throws are checked for effects proceeding it in the same effect stack; when Type = 0, it processes after.

#326 (0x146) Apply Effects List
Parameter #1: Value
Parameter #2: Stat Type

Description:

The creature type specified by the Stat Type field will be affected by the spell in the Resource field. See opcode #324 for more information.

The spell specified by the resource field is cast at the same level as the current effect, regardless of Spell type.

Unlike opcode #146, when targeting Self or Original Caster, the resource is still cast on the ability target, not the caster.

For the purpose of dispelling effects only, the opcode target (not necessarily the caster) determines the caster level for effects in its resource. It also determines the "Caster location" saved to the V2 effect on creatures. It doesn't transfer full ownership though – the caster is still credited for damage.

If the resource uses projectile #0 (default):

The resource will ignore its projectile field, defaulting to use projectile #1|None for all effects.
Effects in the resource that target Self, Projectile Target, or Original Caster will all affect the target of this effect.
If this effect is reflected/turned, the target of effects in the resource is reflected.

Otherwise:

Effects in the resource that target Self will affect the target of this effect, not the caster.
If this effect is reflected/turned, only effects in the resource targeting Original Caster will be affected, now affecting the target.

Note: If this effect is applied through opcode #177, the spell specified by the resource key is cast at the level specified at offset 0xc8 of the EFF.

Important:

Unlike opcode #146^*p2=1, when this opcode gets reflected (opcode #197, opcode #198, opcode #199, opcode #202, opcode #203 and opcode #207), the spell specified by the resource key is cast at the caster's Casting Level, and it will also affect the original target (as if it wasn't reflected).
When this opcode is applied through opcode #177 and gets reflected (opcode #197, opcode #198, opcode #199, opcode #202, opcode #203 and opcode #207), the spell specified by the resource key is cast at the level specified at offset 0xc8 of the EFF, and it will also affect the original target (as if it wasn't reflected).

Note:

Effects in the resource will also bypass Magic Resistance, of every target, as if the caster targeted themselves, regardless of who they target with the spell or this effect.
- Setting the Ignore Center bit in the subspell's projectile will force its effects to check Magic Resistance on every target, even if the caster did target themselves. Though as its primary function is to cause the projectile to ignore the caster (not "center"), it still won't affect them if it's area-effect.

Note: The only meaningful Timing Modes for this opcode are: 0|Instant/Limited with duration = 0, 1|Instant/Permanent, or 4|Delayed/Permanent.

#327 (0x147) Graphics: Icewind Visual Spell Hit (plays sound)
Parameter #1: Target
Parameter #2: Projectile Index

Description:

Shows the lighting effect specified by the Projectile Index value. These effects are usually used for spell hits based on the spell school.
Functions similar to opcode #140, with the Use Projectile option, except its Projectile Index is 4096 (0x1000) less, instead of the usual +1. It can't display projectiles 0 – 4095.
Known values for Target are:

0 ⟶ Launch projectile at effect target (doesn't work in Area-Effect spells)
1 ⟶ Affected targets launch projectile at ability target (creature or location). Use Self to generate just one projectile.

Parameter2: Projectile Index (-4096)

Note: Like opcode #140/opcode #141, it doesn’t deliver any effects. Not affected by Haste/Slow.

Note: It looks like the Special field is meant to override Projectile Index, using values straight from PROJECTL.IDS (without the 4096 offset), but it’s not actually implemented.

#328 (0x148) State: Set Extended or Spell State
Parameter #1: Irrelevant
Parameter #2: Type
Special: Mode

Description:

Sets the extended or spell state of the targetted creature(s) to the value specified by the Type field, depending on the Mode value.
These effects could be detected by the gamescript trigger ExtendedStateCheck() (see EXTSTATE.IDS).
Known values for Type are:

0 ⟶ Chaotic Command
1 ⟶ Miscast Magic
2 ⟶ Pain
3 ⟶ Greater Malison
4 ⟶ Blood Rage
5 ⟶ Cat's Grace
6 ⟶ Mold Touch
7 ⟶ Shroud of Flame

If Mode is set to 1, then this effect behaves like IWD2 Set State effect (see SPLSTATE.IDS).

Info:

The IWD mode Spell States are interchangeable with their IWD2 mode counterparts.
- However, keep in mind that the values do not match. Let us consider "Shroud of Flame" as an example. You must use 7 with IWD mode and 47 with IWD2 mode.
The IWD mode states are bits 18–25 from EXTSTATE.IDS, all of which are hardcoded.

Each EXTSTATE has a hard-coded two-way mapping to a SPLSTATE, even though you can't actually set most of the EXTSTATEs directly:

Hex value	Bit	Label	Spell state
0x00000001	BIT0	STATE_PRAYER	12 – BENEFICIAL_PRAYER
0x00000002	BIT1	STATE_PRAYER_BAD	13 – DETRIMENTAL_PRAYER
0x00000004	BIT2	STATE_RECITATION	14 – BENEFICIAL_RECITATION
0x00000008	BIT3	STATE_RECITATION_BAD	15 – DETRIMENTAL_RECITATION
0x00000010	BIT4	STATE_EYE_OF_THE_MIND	48 – EYE_OF_THE_MIND
0x00000020	BIT5	STATE_EYE_OF_THE_SWORD	49 – EYE_OF_THE_SWORD
0x00000040	BIT6	STATE_EYE_OF_THE_MAGE	50 – EYE_OF_THE_MAGE
0x00000080	BIT7	STATE_EYE_OF_VENOM	51 – EYE_OF_VENOM
0x00000100	BIT8	STATE_EYE_OF_THE_SPIRIT	52 – EYE_OF_THE_SPIRIT
0x00000200	BIT9	STATE_EYE_OF_FORTITUDE	53 – EYE_OF_FORTITUDE
0x00000400	BIT10	STATE_EYE_OF_STONE	54 – EYE_OF_STONE
0x00000800	BIT11	STATE_ANIMAL_RAGE	39 – ANIMAL_RAGE
0x00001000	BIT12	STATE_SUPPRESS_HP_INFO	35 – SUPPRESS_HP_INFO
0x00002000	BIT13	STATE_BERSERK_ALWAYS_ACTIVE	33 – BERSERK_ALWAYS_ACTIVE
0x00004000	BIT14	STATE_SNEAK_ATTACK_IMMUNITY	40 – SNEAK_ATTACK_IMMUNITY
0x00008000	BIT15	STATE_CYNICISM_EQUIPPED	255 – CYNICISM_EQUIPPED
0x00010000	BIT16	STATE_UNSTUN_ON_DAMAGE	37 – UNSTUN_ON_DAMAGE
0x00020000	BIT17	STATE_DEAFENED	38 – DEAFENED
0x00040000	BIT18	STATE_CHAOTIC_COMMANDS	41 – CHAOTIC_COMMANDS
0x00080000	BIT19	STATE_MISCAST_MAGIC	42 – MISCAST_MAGIC
0x00100000	BIT20	STATE_PAIN	43 – PAIN
0x00200000	BIT21	STATE_MALISON	44 – MALISON
0x00400000	BIT22	STATE_BLOOD_RAGE	34 – BLOOD_RAGE
0x00800000	BIT23	STATE_CATS_GRACE	45 – CATS_GRACE
0x01000000	BIT24	STATE_MOLD_TOUCH	46 – MOLD_TOUCH
0x02000000	BIT25	STATE_SHROUD_OF_FLAME	47 – SHROUD_OF_FLAME
0x04000000	BIT26	STATE_STATIC_CHARGE	116 – STATIC_CHARGE
0x08000000	BIT27	STATE_DOESNT_AWAKEN_ON_DAMAGE	36 – DOESNT_AWAKEN_ON_DAMAGE

#329 (0x149) Spell Effect: Slow Poison
Parameter #1: Slow Factor
Parameter #2: Irrelevant

Description:

Applies the slow poison effect to the targeted creature(s), using the Slow Factor field.

Note: This opcode writes over the Frequency Multiplier field of any opcode #25 effects on the targeted creature. As a result, it is useless against opcode #25 whose Type is 0 or 1, as well as any Poison effect that is used through opcode #177, as Type=4 requires.

Note: It can also accelerate Poisons if their Frequency Multiplier field was already higher than the value specified in opcode #329.

Note: It does not alter the duration of the poison, nor does it affect any of the other frequency opcodes (78/98/272).

#330 (0x14A) Text: Float Text
Parameter #1: Strref
Parameter #2: Type
Parameter #3: Starting strref
Special: Count

Description:

Displays the text specified by the Strref field, in the style specified by the Type field.
Known values for Type are:

0 ⟶ Default (show strref)
1 ⟶ Cynicism (show Cynicism strrefs)

About Cynicism option:

Uses a random String Reference from between 24916 – 24940.
Triggers at random intervals throughout its duration.
Maintains CYNICISM_EQUIPPED on the targeted creature(s).

If used from an external effect (EFF), Strref is set to 0 and Type to 1, the third parameter will dictate the first strref and Count will dictate the count. Then the number of lines of Count will be displayed starting with the strref in Starting strref.

Info: When Type=0, it is possible to colorize the string. In order to do so, follow the instructions concerning the colorization of the name of your character during Character Creation.

#331 (0x14B) Summon: Random Monster Summoning
Parameter #1: Count
Parameter #2: Type
Special: Mode

Description:

Each CRE file has a Creature Power Level number. This effect summons a number of monsters depending on this value, the special parameter and if it is used in SPL / ITM or from an external EFF.

When used in SPL/ITM files, known values for Mode are:

0 ⟶ Summon amount equal to 'Count' + Dice rolls
1 ⟶ Summon amount equal to 'Count' + Dice rolls
2 ⟶ Summon until Creature Power Level equals/exceeds Caster's Level

When used in external EFF files, known values for Mode are:

0 ⟶ Summon until Creature Power Level equals/exceeds Count
1 ⟶ Summon amount equal to 'Count' + Dice rolls
2 ⟶ Summon until Creature Power Level equals/exceeds Caster Level field

The Type field sets which 2DA file to pick the creatures to summon from. The 2da files are listed in SMTABLES.2DA.
If the resource field is filled, it will use a custom .2da to determine which monsters to summon.
If used from an external effect (.eff), the vvc field controls the bam/vvc file played over the creatures when summoning.
If used from an external effect (.eff), the second vvc field controls the bam file played over the target area when summoning.

Note: As far as the allegiance of the summoned creatures is concerned, this opcode uses “Match Target”, which sets the summoned creature’s allegiance to one of ALLY, NEUTRAL, or ENEMY, based on the summoner (whichever group the summoner belongs to).

#332 (0x14C) Stat: Specific Damage Modifier
Parameter #1: Modifier
Parameter #2: Type

Description:

Increases the damage caused by the character. The Type parameter defines which damage type is increased.
Known values for Type are:

0 ⟶ All damage increased
1 ⟶ Fire damage
2 ⟶ Cold damage
3 ⟶ Electricity damage
4 ⟶ Acid damage
5 ⟶ Magic damage
6 ⟶ Poison damage
7 ⟶ Slashing damage
8 ⟶ Piercing damage
9 ⟶ Crushing damage
10 ⟶ Missile damage

Note: Modifier is always a percentage, not a flat value. Multiple instances stack additively, i.e.: +20% + 20% = +40%.

#333 (0x14D) Spell Effect: Static Charge
Parameter #1: Number
Parameter #2: Level
Special: Delay

Description:

Casts a secondary spell (default: "original resource" + B) on the target, for a number of strikes specified by the Number field. The spell will be cast once per Delay through its projectile.

If a spell Level is not specified, then the spell will be cast at level 1 and the damage opcodes will inherit the dice values of this effect, otherwise the spell will be cast at the given level.

Delay specifies the delay between hits, its default value is 6 (one round).

Important: When using this opcode, be aware of the following quirks:

If subspell's projectile = 0, subspell effects targeting Self|Projectile Target|Original Caster will affect the effect target of opcode #333.
If subspell's projectile != 0, subspell effects targeting Original Caster will affect the effect target of opcode #333.
If subspell's projectile != 0, subspell effects targeting Self and Projectile Target will affect the ability target of spell containing opcode #333. In particular:
- SPL containing opcode #333 ⇒ target:Living Actor; opcode #333 ⇒ target:Self
  Subspell is cast targeting the Living Actor
  - subspell: op#: target:Self ⟶ affects targeted Living Actor.
  - subspell: op#: target:Projectile Target ⟶ affects targeted Living Actor if subspell's projectile is single-target, or subspell's projectile target(s) if it's area-effect.
- SPL containing opcode #333 ⇒ target:Living Actor; opcode #333 ⇒ target:Projectile Target
  Subspell is cast at each target of the projectile
  - subspell: op#: target:Self ⟶ affects subspell's target.
  - subspell: op#: target:Projectile Target ⟶ affects subspell's target if subspell's projectile is single-target, or subspell's projectile target(s) if it's area-effect.
- SPL containing opcode #333 ⇒ target:Target Point; opcode #333 ⇒ target:Self
  Subspell is cast targeting yourself, not the target point
  - subspell: op#: target:Self ⟶ affects Self.
  - subspell: op#: target:Projectile Target ⟶ affects Self if subspell's projectile is single-target, or subspell's projectile target(s) if it's area-effect.
- SPL containing opcode #333 ⇒ target:Target Point; opcode #333 ⇒ target:Projectile Target
  Subspell is cast at each target of the projectile
  - subspell: op#: target:Self ⟶ affects subspell's target.
  - subspell: op#: target:Projectile Target ⟶ affects subspell's target if subspell's projectile is single-target, or subspell's projectile target(s) if it's area-effect.
- SPL containing opcode #333 ⇒ target:Caster ⟶ is the same as targeting yourself as the Living Actor.
When this opcode gets reflected (opcode #197, opcode #198, opcode #199, opcode #202, opcode #203 and opcode #207), only its first "hit" gets reflected. Subsequent hits occur as if reflection wasn't involved. When this happens, for that first hit only:
- If subspell's projectile = 0, subspell effects targeting Self|Projectile Target|Original Caster will affect the original caster.
- If subspell's projectile != 0, subspell effects targeting Original Caster will affect the original caster.
- If subspell's projectile != 0, subspell effects targeting Self and Projectile Target will continue to affect the ability target of the spell containing opcode #333.

Note:

Effects in the resource will also bypass Magic Resistance, of every target, as if the caster targeted themselves, regardless of who they target with the spell or this effect.
- Setting the Ignore Center bit in the subspell's projectile will force its effects to check Magic Resistance on every target, even if the caster did target themselves. Though as its primary function is to cause the projectile to ignore the caster (not "center"), it still won't affect them if it's area-effect.

Bug: Its Saving Throw is checked EVERY time it triggers, terminating the opcode #333 effect if successful, so unless that is desired (or it only triggers once), it should not have a Saving Throw.

Info: See opcode #326 for some peculiarities of projectile behaviour.

#334 (0x14E) Spell Effect: Turn Undead
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Turns undead just like the modal action. The caster must have some turn undead levels to be effective. See opcode #323.

#335 (0x14F) Spell Effect: Seven Eyes
Parameter #1: Spellstate
Parameter #2: Row#
Special: Eye Group

Description:

When the opcode is applied, it checks if the creature currently has the spellstate specified by Spellstate set. Known values for Spellstate are defined in SPLSTATE.IDS.

If it's already set, this opcode is NOT applied, nothing happens.
Otherwise, the opcode is attached, the spellstate becomes set (for the duration of the effect), and the "Resource" specified by the resource key (if any!) is granted to the character (as if through opcode #171)

The next time the row number specified by Row# of 7EYES.2DA is triggered (blocks an effect), this effect will terminate, remove the spell it granted (as if through opcode #172) and decrement opcode #336 effects according to their Eye Group (parameter2 for opcode #336, special field for opcode #335).

Bug: This opcode has a similar issue as opcode #135 with regards to applying the effect while another is already active:

If you apply opcode #335 while the specified Spellstate is already set (either by opcode #328 or another opcode #335), then the new opcode #335 will NOT be applied.
- Having said that, a timing=4,duration=0 delay between removing the old spellstate and applying the new will bypass this issue.

Note: Setting Row# = "-1" will effectively have it last its full duration, blocking every effect listed for that spellstate in 7EYES.2DA.

#336 (0x150) Graphics: Display Eyes Overlay
Parameter #1: Sequence
Parameter #2: Eye Group

Description:

Displays 2 visual animations (VVC or BAM) similar to opcode #215 though only attached to a creature, not at a location (unattached). The animation filename is built from the "resref" specified by the resource field and Sequence.
Known values for Sequence are:

0 ⟶ None
1 ⟶ A
2 ⟶ B
3 ⟶ C
4 ⟶ D
5 ⟶ E
6 ⟶ F
7 ⟶ G
...
26 ⟶ Z

The two animations that are played must be named in the following way:

'Resource'1'Sequence'.'extension'
'Resource'2'Sequence'.'extension'

For instance, in IWD:EE we have:

#7eyes1a.VVC, #7eyes1b.VVC, #7eyes1c.VVC, #7eyes1d.VVC, #7eyes1e.VVC, #7eyes1f.VVC
#7eyes2a.VVC, #7eyes2b.VVC, #7eyes2c.VVC, #7eyes2d.VVC, #7eyes2e.VVC, #7eyes2f.VVC

Whenever an opcode #335 effect with a matching Eye Group (parameter2 for opcode #336, special field for opcode #335) terminates on the creature, the Sequence value is reduced by 1, until it reaches 0 and terminates itself.

#337 (0x151) Remove: Opcode
Parameter #1: Param
Parameter #2: Opcode

Description:

Removes all Opcode from target, that has the same param2 as Param. Use "-1" to ignore the parameter.

Important: This opcode cannot remove effects using Timing Mode 9 (Instant/Permanent).

#338 (0x152) Disable Rest
Parameter #1: StrRef
Parameter #2: Mode

Description:

Disables save and/or rest, prints the string when they are attempted.
Known values for Mode are:

0 ⟶ cannot rest
1 ⟶ cannot save
2 ⟶ cannot save or rest

Important: This effect cannot block autosaving or scripted resting.

#339 (0x153) Alter Animation
Parameter #1: Value and Modifier
Parameter #2: Projectile Type
Special: Range

Description:

Modifies an area animation's Cycle and plays an area hit animation over it indexed by Projectile Type.

Value is the high word of the first parameter, Modifier is a bitfield manipulation operation.
Known values for Modifier are:

0 ⟶ Set Value – ignores original
1 ⟶ And Value – keeps bits
2 ⟶ Or Value – sets bits
3 ⟶ Xor Value – toggles bits
4 ⟶ And not Value – turns off bits

Range is a radius around the targeted location that it will detect the specified animation (it will affect all within its radius). It's measured same as projectiles: 16 = 1ft radius.

Resource should be the animation's label as listed in the ARE file, not necessarily its filename.

Projectile Type displays a projectile over the animation's location similar to opcode #140/opcode #141.

Info: Examples can be found by looking at "SPIN172.SPL", "SPIN177.SPL", and "AR1105.ARE" (the area with those animations) in IWDEE.

#340 (0x154) Spell Effect: Change Backstab Effect
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Sets the Back Stab effect of the targetted creature to the spell specified by the resource key. Both parameters should be 0 (zero).
In particular:

If the game option '3E Sneak Attacks' is not enabled, the spell is cast at the character's innate level.
If the game option '3E Sneak Attacks' is enabled, the spell is cast at level defined in CRIPPSTR.2DA + 1.

Note: If the game option ‘3E Sneak Attacks’ is enabled, the targeted creature will be affected by both "BACKSTAB.SPL" and the spell specified by the resource key.

#341 (0x155) Spell Effect: Change Critical Hit Effect
Parameter #1: Irrelevant
Parameter #2: Condition
Parameter #3: Weapon Category
Special: Attack Type

Description:

Sets the Critical Hit effect of the targetted creature to the spell specified by the resource key.
Known values for Condition are:

0 ⟶ Always (both hands)
1 ⟶ By this weapon only

Known values for Attack Type are:

0 ⟶ Any attack type
1 ⟶ Melee attack only
2 ⟶ Ranged attack only
3 ⟶ Magical attack only

(External EFFs) Known values for Weapon Category are defined in ITEMCAT.IDS.

#342 (0x156) Animation: Override Data
Parameter #1: Value
Parameter #2: Field

Description:

Overrides the character animation's blood color, body heat flag or personal space.
Known values for Field are:

1 ⟶ Override body heat
2 ⟶ Override blood color
4 ⟶ Override personal space

Note: Value = 0 causes infinite melee/spell range, both for their attacks/spells and when others target them.

Note: Does not alter selection circle size.

#343 (0x157) HP Swap
Parameter #1: Irrelevant
Parameter #2: Mode

Description:

Known values for Mode are:

0 ⟶ Swap if caster HP > target HP
1 ⟶ Always swap

Note: This effect is always instantaneous.

#344 (0x158) Enchantment vs. creature type
Parameter #1: IDS Entry
Parameter #2: IDS File
Parameter #3: Weapon Slot
Parameter #4: Weapon Category
Special: Enchantment Level

Description:

Alters the targeted creature(s) Enchantment against the creature type specified by the IDS Entry field in the specified IDS File.
Known values for IDS File are:

2 ⟶ EA.IDS
3 ⟶ GENERAL.IDS
4 ⟶ RACE.IDS
5 ⟶ CLASS.IDS
6 ⟶ SPECIFIC.IDS
7 ⟶ GENDER.IDS
8 ⟶ ALIGN.IDS
9 ⟶ KIT.IDS

When used in external EFFs, known values for Weapon Slot are:

0 ⟶ Current weapon (the one to which this opcode is attached as an equipped effect, otherwise no restrictions)
1 ⟶ Main hand weapon (includes Ammo and Fists)
2 ⟶ Off-hand weapon
3 ⟶ Both weapons

(External EFFs) Values for Weapon Category are taken from ITEMCAT.IDS.

Note: It only sets the enchantment level, not the Magical flag.

#345 (0x159) Enchantment bonus
Parameter #1: Enchantment Level
Parameter #2: Type
Special: Weapon Slot

Description:

Gives the targeted creature(s) an Enchantment bonus to weapons as specified by the Type field. The Enchantment Level field is used if Type is set to 0. Known values for Type are:

0 ⟶ Magical weapons (Enchantment Level and below)
1 ⟶ Magical weapons (all)
2 ⟶ Non-magical weapons
3 ⟶ Silver
4 ⟶ Non-Silver
5 ⟶ Non-Silver / Non-Magical
6 ⟶ Two-Handed
7 ⟶ One-Handed
8 ⟶ Cursed
9 ⟶ Non-Cursed
10 ⟶ Cold Iron
11 ⟶ Non Cold Iron

Known values for Weapon Slot are:

0 ⟶ Current weapon (the one to which this opcode is attached as an equipped effect, otherwise no restrictions)
1 ⟶ Main hand weapon (includes Ammo and Fists)
2 ⟶ Off-hand weapon
3 ⟶ Both weapons

Note: (External EFFs) Parameter4 is the item type of the affected weapon (0 matches all). This can be set to affect only fists, for example.

Note: Type values 2, 4, 5, 7, 9, and 11 do nothing (the “non-“ versions), as the opcode can only add properties, not remove them. These Type values were likely copied directly from opcode #120, specifically so they would have the same values, even if some didn’t function.

Note: Unlike opcode #344, if you set Type=0, any non-zero Enchantment Level value will also flag the item as Magical.

#346 (0x15A) Save vs. school bonus
Parameter #1: Statistic Modifier
Parameter #2: Type
Special: Primary Type

Description:

Applies the modifier value specified by the Statistic Modifier field in the style specified by the Type field.
Known values for Type are:

0 ⟶ Cumulative Modifier: Save = Save + 'Statistic Modifier' value
1 ⟶ Flat Value Modifier: Save = 'Statistic Modifier' value
2 ⟶ Percentage Modifier: Save = (Save * 'Statistic Modifier' value) / 100

Primary Type defines the school of magic to save against (see MSCHOOL.2DA).

Note: This opcode should be limited to the first 12 (0 – 11) spell schools.

#347 (0x15B) Unused Variants: PSTEE
Parameter #1: Unknown
Parameter #2: Unknown

Description:

Unused

#348 (0x15C) Unused Variants: PSTEE
Parameter #1: Unknown
Parameter #2: Unknown

Description:

Unused

#349 (0x15D) Unused Variants: PSTEE
Parameter #1: Unknown
Parameter #2: Unknown

Description:

Unused

#350 (0x15E) Unused Variants: PSTEE
Parameter #1: Unknown
Parameter #2: Unknown

Description:

Unused

#351 (0x15F) Unused Variants: PSTEE
Parameter #1: Unknown
Parameter #2: Unknown

Description:

Unused

#352 (0x160) Unused Variants: PSTEE
Parameter #1: Unknown
Parameter #2: Unknown

Description:

Unused

#353 (0x161) Unused Variants: PSTEE
Parameter #1: Unknown
Parameter #2: Unknown

Description:

Unused

#354 (0x162) Unused Variants: PSTEE
Parameter #1: Unknown
Parameter #2: Unknown

Description:

Unused

#355 (0x163) Unused Variants: PSTEE
Parameter #1: Unknown
Parameter #2: Unknown

Description:

Unused

#356 (0x164) Unused Variants: PSTEE
Parameter #1: Unknown
Parameter #2: Unknown

Description:

Unused

#357 (0x165) Unused Variants: PSTEE
Parameter #1: Unknown
Parameter #2: Unknown

Description:

Unused

#358 (0x166) Unused Variants: PSTEE
Parameter #1: Unknown
Parameter #2: Unknown

Description:

Unused

#359 (0x167) Unused
Parameter #1: Unknown
Parameter #2: Unknown

Description:

Unused

#360 (0x168) Stat: Ignore Reputation Breaking Point
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

Allows joinable NPCs stay in the party regardless of reputation.

#361 (0x169) Cast spell on critical miss
Parameter #1: Unused
Parameter #2: Current Weapon Only?
Parameter #3: Weapon Category
Special: Attack Type

Description:

Applies the spell specified by the resource key when the target suffers a critical miss. The target of the critical miss effect is the attacker.
Known values for Current Weapon Only? are:

0 ⟶ No
1 ⟶ Yes

Known values for Attack Type are:

0 ⟶ Any attack type
1 ⟶ Melee attack only
2 ⟶ Ranged attack only
3 ⟶ Magical attack only

(External EFFs) Known values for Weapon Category are defined in ITEMCAT.IDS.

#362 (0x16A) Critical miss bonus
Parameter #1: Statistic Modifier
Parameter #2: Current Weapon Only?
Parameter #3: Weapon Category
Special: Attack Type

Description:

This effect increases the chance of suffering a Critical Miss. Critical Misses will occur on a roll (on a 1d20) lower or equal to: 1 + 'Statistic Modifier'.
Known values for Current Weapon Only? are:

0 ⟶ No
1 ⟶ Yes

Known values for Attack Type are:

0 ⟶ Any attack type
1 ⟶ Melee attack only
2 ⟶ Ranged attack only
3 ⟶ Magical attack only

(External EFFs) Known values for Weapon Category are defined in ITEMCAT.IDS.

Note: Keep in mind that Critical Hits have priority over Critical Misses.
For instance, let us consider opcode #301 (Statistic Modifier = 10) and opcode #362 (Statistic Modifier = 10). You would have the following ranges:

Critical hit: 10 – 20
Critical miss: 1 – 11

If you rolled a 10 or 11, you would get a Critical hit, not a Critical miss.

Note: In v2.3 and prior, only the latest instance of this opcode applies. In v2.5+, all instances stack together.

#363 (0x16B) Modal state check
Parameter #1: Irrelevant
Parameter #2: Irrelevant
Special: Modal State

Description:

Trying to move will break the current modal action, and breaking the modal action will remove this effect and any other effects applied by the same spell.
The targeted creature must already be in the specified Modal State when this opcode is applied.

Modal State defines the modal state to check (see MODAL.IDS).

Note: If Modal State = 0, then any modal state is eligible, but not NONE, it must be an actual Modal State.

Note: When used in EFF files, Parent Resource field must be used to specify which resources effects will be removed (an empty field will remove effects applied by the engine, such as level-up proficiencies).

#364 (0x16C) Empty
Parameter #1: Unknown
Parameter #2: Unknown

Description:

Unused.

Note: It is still processed, so it will still interact with Spell Turning/Deflection/etc… just like any other effect.

#365 (0x16D) Make unselectable
Parameter #1: Dialogue enabled
Parameter #2: AI enabled
Special: Selection circle color

Description:

This effects makes the targeted creature unselectable.
Known values for Dialogue Enabled are:
BG:EE/SoD:

0 ⟶ Enabled
1 ⟶ Disabled

BG2:EE:

0 ⟶ Disabled
1 ⟶ Enabled

Known values for AI Enabled are:

0 ⟶ Disabled
1 ⟶ Enabled

Known values for Selection circle color are:

0 ⟶ Purple Selection Circle
non-zero ⟶ Normal Selection Circle

Note: AI Enabled doesn’t work in BG:EE/SoD games (i.e., you cannot disable the AI of the targeted creature).

#366 (0x16E) Spell: Apply Spell On Move
Parameter #1: Irrelevant
Parameter #2: Irrelevant

Description:

This opcode applies the spell file (SPL) specified in the resource field to the target creature if it moves.
The spell should be applied instantly and any casting times in the SPL file should be ignored.

Note: This effect only triggers once, then terminates.

#367 (0x16F) Minimum base stats
Parameter #1: Irrelevant
Parameter #2: Stat Value

Description:

This is used in story mode. Any non-zero value in Stat Value enables it. Ensures that base stats of the affected creature can not be reduced to 0.

The effect modifies IGNOREDRAINDEATH to Stat Value.

Note: The Stat Value parameter can take any value. If you set it to 0, you will disable the effect (for its duration).