diff --git a/src/data/ability.ts b/src/data/ability.ts
index 43d02da1733..6a391818866 100644
--- a/src/data/ability.ts
+++ b/src/data/ability.ts
@@ -634,15 +634,15 @@ export class ReverseDrainAbAttr extends PostDefendAbAttr {
    * Examples include: Absorb, Draining Kiss, Bitter Blade, etc.
    * Also displays a message to show this ability was activated.
    * @param pokemon {@linkcode Pokemon} with this ability
-   * @param passive N/A
+   * @param _passive N/A
    * @param attacker {@linkcode Pokemon} that is attacking this Pokemon
    * @param move {@linkcode PokemonMove} that is being used
-   * @param hitResult N/A
-   * @args N/A
+   * @param _hitResult N/A
+   * @param _args N/A
    * @returns true if healing should be reversed on a healing move, false otherwise.
    */
-  applyPostDefend(pokemon: Pokemon, passive: boolean, simulated: boolean, attacker: Pokemon, move: Move, hitResult: HitResult, args: any[]): boolean {
-    if (move.hasAttr(HitHealAttr)) {
+  override applyPostDefend(pokemon: Pokemon, _passive: boolean, simulated: boolean, attacker: Pokemon, move: Move, _hitResult: HitResult, _args: any[]): boolean {
+    if (move.hasAttr(HitHealAttr) && !move.hitsSubstitute(attacker, pokemon)) {
       if (!simulated) {
         pokemon.scene.queueMessage(i18next.t("abilityTriggers:reverseDrain", { pokemonNameWithAffix: getPokemonNameWithAffix(attacker) }));
       }
@@ -669,8 +669,8 @@ export class PostDefendStatStageChangeAbAttr extends PostDefendAbAttr {
     this.allOthers = allOthers;
   }
 
-  applyPostDefend(pokemon: Pokemon, passive: boolean, simulated: boolean, attacker: Pokemon, move: Move, hitResult: HitResult, args: any[]): boolean {
-    if (this.condition(pokemon, attacker, move)) {
+  override applyPostDefend(pokemon: Pokemon, _passive: boolean, simulated: boolean, attacker: Pokemon, move: Move, _hitResult: HitResult, _args: any[]): boolean {
+    if (this.condition(pokemon, attacker, move) && !move.hitsSubstitute(attacker, pokemon)) {
       if (simulated) {
         return true;
       }
@@ -707,13 +707,13 @@ export class PostDefendHpGatedStatStageChangeAbAttr extends PostDefendAbAttr {
     this.selfTarget = selfTarget;
   }
 
-  applyPostDefend(pokemon: Pokemon, passive: boolean, simulated: boolean, attacker: Pokemon, move: Move, hitResult: HitResult, args: any[]): boolean {
-    const hpGateFlat: integer = Math.ceil(pokemon.getMaxHp() * this.hpGate);
+  override applyPostDefend(pokemon: Pokemon, _passive: boolean, simulated: boolean, attacker: Pokemon, move: Move, _hitResult: HitResult, _args: any[]): boolean {
+    const hpGateFlat: number = Math.ceil(pokemon.getMaxHp() * this.hpGate);
     const lastAttackReceived = pokemon.turnData.attacksReceived[pokemon.turnData.attacksReceived.length - 1];
     const damageReceived = lastAttackReceived?.damage || 0;
 
-    if (this.condition(pokemon, attacker, move) && (pokemon.hp <= hpGateFlat && (pokemon.hp + damageReceived) > hpGateFlat)) {
-      if (!simulated ) {
+    if (this.condition(pokemon, attacker, move) && (pokemon.hp <= hpGateFlat && (pokemon.hp + damageReceived) > hpGateFlat) && !move.hitsSubstitute(attacker, pokemon)) {
+      if (!simulated) {
         pokemon.scene.unshiftPhase(new StatStageChangePhase(pokemon.scene, (this.selfTarget ? pokemon : attacker).getBattlerIndex(), true, this.stats, this.stages));
       }
       return true;
@@ -734,8 +734,8 @@ export class PostDefendApplyArenaTrapTagAbAttr extends PostDefendAbAttr {
     this.tagType = tagType;
   }
 
-  applyPostDefend(pokemon: Pokemon, passive: boolean, simulated: boolean, attacker: Pokemon, move: Move, hitResult: HitResult, args: any[]): boolean {
-    if (this.condition(pokemon, attacker, move)) {
+  override applyPostDefend(pokemon: Pokemon, _passive: boolean, simulated: boolean, attacker: Pokemon, move: Move, _hitResult: HitResult, _args: any[]): boolean {
+    if (this.condition(pokemon, attacker, move) && !move.hitsSubstitute(attacker, pokemon)) {
       const tag = pokemon.scene.arena.getTag(this.tagType) as ArenaTrapTag;
       if (!pokemon.scene.arena.getTag(this.tagType) || tag.layers < tag.maxLayers) {
         if (!simulated) {
@@ -758,8 +758,8 @@ export class PostDefendApplyBattlerTagAbAttr extends PostDefendAbAttr {
     this.tagType = tagType;
   }
 
-  applyPostDefend(pokemon: Pokemon, passive: boolean, simulated: boolean, attacker: Pokemon, move: Move, hitResult: HitResult, args: any[]): boolean {
-    if (this.condition(pokemon, attacker, move)) {
+  override applyPostDefend(pokemon: Pokemon, _passive: boolean, simulated: boolean, attacker: Pokemon, move: Move, _hitResult: HitResult, _args: any[]): boolean {
+    if (this.condition(pokemon, attacker, move) && !move.hitsSubstitute(attacker, pokemon)) {
       if (!pokemon.getTag(this.tagType) && !simulated) {
         pokemon.addTag(this.tagType, undefined, undefined, pokemon.id);
         pokemon.scene.queueMessage(i18next.t("abilityTriggers:windPowerCharged", { pokemonName: getPokemonNameWithAffix(pokemon), moveName: move.name }));
@@ -771,8 +771,8 @@ export class PostDefendApplyBattlerTagAbAttr extends PostDefendAbAttr {
 }
 
 export class PostDefendTypeChangeAbAttr extends PostDefendAbAttr {
-  applyPostDefend(pokemon: Pokemon, passive: boolean, simulated: boolean, attacker: Pokemon, move: Move, hitResult: HitResult, args: any[]): boolean {
-    if (hitResult < HitResult.NO_EFFECT) {
+  override applyPostDefend(pokemon: Pokemon, _passive: boolean, simulated: boolean, attacker: Pokemon, move: Move, hitResult: HitResult, _args: any[]): boolean {
+    if (hitResult < HitResult.NO_EFFECT && !move.hitsSubstitute(attacker, pokemon)) {
       if (simulated) {
         return true;
       }
@@ -787,7 +787,7 @@ export class PostDefendTypeChangeAbAttr extends PostDefendAbAttr {
     return false;
   }
 
-  getTriggerMessage(pokemon: Pokemon, abilityName: string, ...args: any[]): string {
+  override getTriggerMessage(pokemon: Pokemon, abilityName: string, ..._args: any[]): string {
     return i18next.t("abilityTriggers:postDefendTypeChange", {
       pokemonNameWithAffix: getPokemonNameWithAffix(pokemon),
       abilityName,
@@ -805,8 +805,8 @@ export class PostDefendTerrainChangeAbAttr extends PostDefendAbAttr {
     this.terrainType = terrainType;
   }
 
-  applyPostDefend(pokemon: Pokemon, passive: boolean, simulated: boolean, attacker: Pokemon, move: Move, hitResult: HitResult, args: any[]): boolean {
-    if (hitResult < HitResult.NO_EFFECT) {
+  override applyPostDefend(pokemon: Pokemon, _passive: boolean, simulated: boolean, attacker: Pokemon, move: Move, hitResult: HitResult, _args: any[]): boolean {
+    if (hitResult < HitResult.NO_EFFECT && !move.hitsSubstitute(attacker, pokemon)) {
       if (simulated) {
         return pokemon.scene.arena.terrain?.terrainType !== (this.terrainType || undefined);
       } else {
@@ -829,8 +829,9 @@ export class PostDefendContactApplyStatusEffectAbAttr extends PostDefendAbAttr {
     this.effects = effects;
   }
 
-  applyPostDefend(pokemon: Pokemon, passive: boolean, simulated: boolean, attacker: Pokemon, move: Move, hitResult: HitResult, args: any[]): boolean {
-    if (move.checkFlag(MoveFlags.MAKES_CONTACT, attacker, pokemon) && !attacker.status && (this.chance === -1 || pokemon.randSeedInt(100) < this.chance)) {
+  override applyPostDefend(pokemon: Pokemon, _passive: boolean, simulated: boolean, attacker: Pokemon, move: Move, _hitResult: HitResult, _args: any[]): boolean {
+    if (move.checkFlag(MoveFlags.MAKES_CONTACT, attacker, pokemon) && !attacker.status
+      && (this.chance === -1 || pokemon.randSeedInt(100) < this.chance) && !move.hitsSubstitute(attacker, pokemon)) {
       const effect = this.effects.length === 1 ? this.effects[0] : this.effects[pokemon.randSeedInt(this.effects.length)];
       if (simulated) {
         return attacker.canSetStatus(effect, true, false, pokemon);
@@ -869,8 +870,8 @@ export class PostDefendContactApplyTagChanceAbAttr extends PostDefendAbAttr {
     this.turnCount = turnCount;
   }
 
-  applyPostDefend(pokemon: Pokemon, passive: boolean, simulated: boolean, attacker: Pokemon, move: Move, hitResult: HitResult, args: any[]): boolean {
-    if (move.checkFlag(MoveFlags.MAKES_CONTACT, attacker, pokemon) && pokemon.randSeedInt(100) < this.chance) {
+  override applyPostDefend(pokemon: Pokemon, _passive: boolean, simulated: boolean, attacker: Pokemon, move: Move, _hitResult: HitResult, _args: any[]): boolean {
+    if (move.checkFlag(MoveFlags.MAKES_CONTACT, attacker, pokemon) && pokemon.randSeedInt(100) < this.chance && !move.hitsSubstitute(attacker, pokemon)) {
       if (simulated) {
         return attacker.canAddTag(this.tagType);
       } else {
@@ -893,7 +894,11 @@ export class PostDefendCritStatStageChangeAbAttr extends PostDefendAbAttr {
     this.stages = stages;
   }
 
-  applyPostDefend(pokemon: Pokemon, passive: boolean, simulated: boolean, attacker: Pokemon, move: Move, hitResult: HitResult, args: any[]): boolean {
+  override applyPostDefend(pokemon: Pokemon, _passive: boolean, simulated: boolean, attacker: Pokemon, move: Move, _hitResult: HitResult, _args: any[]): boolean {
+    if (move.hitsSubstitute(attacker, pokemon)) {
+      return false;
+    }
+
     if (!simulated) {
       pokemon.scene.unshiftPhase(new StatStageChangePhase(pokemon.scene, pokemon.getBattlerIndex(), true, [ this.stat ], this.stages));
     }
@@ -901,7 +906,7 @@ export class PostDefendCritStatStageChangeAbAttr extends PostDefendAbAttr {
     return true;
   }
 
-  getCondition(): AbAttrCondition {
+  override getCondition(): AbAttrCondition {
     return (pokemon: Pokemon) => pokemon.turnData.attacksReceived.length !== 0 && pokemon.turnData.attacksReceived[pokemon.turnData.attacksReceived.length - 1].critical;
   }
 }
@@ -915,8 +920,9 @@ export class PostDefendContactDamageAbAttr extends PostDefendAbAttr {
     this.damageRatio = damageRatio;
   }
 
-  applyPostDefend(pokemon: Pokemon, passive: boolean, simulated: boolean, attacker: Pokemon, move: Move, hitResult: HitResult, args: any[]): boolean {
-    if (!simulated && move.checkFlag(MoveFlags.MAKES_CONTACT, attacker, pokemon) && !attacker.hasAbilityWithAttr(BlockNonDirectDamageAbAttr)) {
+  override applyPostDefend(pokemon: Pokemon, _passive: boolean, simulated: boolean, attacker: Pokemon, move: Move, _hitResult: HitResult, _args: any[]): boolean {
+    if (!simulated && move.checkFlag(MoveFlags.MAKES_CONTACT, attacker, pokemon)
+      && !attacker.hasAbilityWithAttr(BlockNonDirectDamageAbAttr) && !move.hitsSubstitute(attacker, pokemon)) {
       attacker.damageAndUpdate(Utils.toDmgValue(attacker.getMaxHp() * (1 / this.damageRatio)), HitResult.OTHER);
       attacker.turnData.damageTaken += Utils.toDmgValue(attacker.getMaxHp() * (1 / this.damageRatio));
       return true;
@@ -925,7 +931,7 @@ export class PostDefendContactDamageAbAttr extends PostDefendAbAttr {
     return false;
   }
 
-  getTriggerMessage(pokemon: Pokemon, abilityName: string, ...args: any[]): string {
+  override getTriggerMessage(pokemon: Pokemon, abilityName: string, ..._args: any[]): string {
     return i18next.t("abilityTriggers:postDefendContactDamage", {
       pokemonNameWithAffix: getPokemonNameWithAffix(pokemon),
       abilityName
@@ -948,8 +954,8 @@ export class PostDefendPerishSongAbAttr extends PostDefendAbAttr {
     this.turns = turns;
   }
 
-  applyPostDefend(pokemon: Pokemon, passive: boolean, simulated: boolean, attacker: Pokemon, move: Move, hitResult: HitResult, args: any[]): boolean {
-    if (move.checkFlag(MoveFlags.MAKES_CONTACT, attacker, pokemon)) {
+  override applyPostDefend(pokemon: Pokemon, _passive: boolean, simulated: boolean, attacker: Pokemon, move: Move, _hitResult: HitResult, _args: any[]): boolean {
+    if (move.checkFlag(MoveFlags.MAKES_CONTACT, attacker, pokemon) && !move.hitsSubstitute(attacker, pokemon)) {
       if (pokemon.getTag(BattlerTagType.PERISH_SONG) || attacker.getTag(BattlerTagType.PERISH_SONG)) {
         return false;
       } else {
@@ -963,24 +969,24 @@ export class PostDefendPerishSongAbAttr extends PostDefendAbAttr {
     return false;
   }
 
-  getTriggerMessage(pokemon: Pokemon, abilityName: string, ...args: any[]): string {
+  override getTriggerMessage(pokemon: Pokemon, abilityName: string, ..._args: any[]): string {
     return i18next.t("abilityTriggers:perishBody", { pokemonName: getPokemonNameWithAffix(pokemon), abilityName: abilityName });
   }
 }
 
 export class PostDefendWeatherChangeAbAttr extends PostDefendAbAttr {
   private weatherType: WeatherType;
-  protected condition: PokemonDefendCondition | null;
+  protected condition?: PokemonDefendCondition;
 
   constructor(weatherType: WeatherType, condition?: PokemonDefendCondition) {
     super();
 
     this.weatherType = weatherType;
-    this.condition = condition ?? null;
+    this.condition = condition;
   }
 
-  applyPostDefend(pokemon: Pokemon, passive: boolean, simulated: boolean, attacker: Pokemon, move: Move, hitResult: HitResult, args: any[]): boolean {
-    if (this.condition !== null && !this.condition(pokemon, attacker, move)) {
+  override applyPostDefend(pokemon: Pokemon, _passive: boolean, simulated: boolean, attacker: Pokemon, move: Move, _hitResult: HitResult, _args: any[]): boolean {
+    if (this.condition && !this.condition(pokemon, attacker, move) || move.hitsSubstitute(attacker, pokemon)) {
       return false;
     }
     if (!pokemon.scene.arena.weather?.isImmutable()) {
@@ -999,8 +1005,9 @@ export class PostDefendAbilitySwapAbAttr extends PostDefendAbAttr {
     super();
   }
 
-  applyPostDefend(pokemon: Pokemon, passive: boolean, simulated: boolean, attacker: Pokemon, move: Move, hitResult: HitResult, args: any[]): boolean {
-    if (move.checkFlag(MoveFlags.MAKES_CONTACT, attacker, pokemon) && !attacker.getAbility().hasAttr(UnswappableAbilityAbAttr)) {
+  override applyPostDefend(pokemon: Pokemon, _passive: boolean, simulated: boolean, attacker: Pokemon, move: Move, _hitResult: HitResult, args: any[]): boolean {
+    if (move.checkFlag(MoveFlags.MAKES_CONTACT, attacker, pokemon)
+      && !attacker.getAbility().hasAttr(UnswappableAbilityAbAttr) && !move.hitsSubstitute(attacker, pokemon)) {
       if (!simulated) {
         const tempAbilityId = attacker.getAbility().id;
         attacker.summonData.ability = pokemon.getAbility().id;
@@ -1012,7 +1019,7 @@ export class PostDefendAbilitySwapAbAttr extends PostDefendAbAttr {
     return false;
   }
 
-  getTriggerMessage(pokemon: Pokemon, abilityName: string, ...args: any[]): string {
+  override getTriggerMessage(pokemon: Pokemon, _abilityName: string, ..._args: any[]): string {
     return i18next.t("abilityTriggers:postDefendAbilitySwap", { pokemonNameWithAffix: getPokemonNameWithAffix(pokemon) });
   }
 }
@@ -1025,8 +1032,9 @@ export class PostDefendAbilityGiveAbAttr extends PostDefendAbAttr {
     this.ability = ability;
   }
 
-  applyPostDefend(pokemon: Pokemon, passive: boolean, simulated: boolean, attacker: Pokemon, move: Move, hitResult: HitResult, args: any[]): boolean {
-    if (move.checkFlag(MoveFlags.MAKES_CONTACT, attacker, pokemon) && !attacker.getAbility().hasAttr(UnsuppressableAbilityAbAttr) && !attacker.getAbility().hasAttr(PostDefendAbilityGiveAbAttr)) {
+  override applyPostDefend(pokemon: Pokemon, _passive: boolean, simulated: boolean, attacker: Pokemon, move: Move, _hitResult: HitResult, _args: any[]): boolean {
+    if (move.checkFlag(MoveFlags.MAKES_CONTACT, attacker, pokemon) && !attacker.getAbility().hasAttr(UnsuppressableAbilityAbAttr)
+      && !attacker.getAbility().hasAttr(PostDefendAbilityGiveAbAttr) && !move.hitsSubstitute(attacker, pokemon)) {
       if (!simulated) {
         attacker.summonData.ability = this.ability;
       }
@@ -1037,7 +1045,7 @@ export class PostDefendAbilityGiveAbAttr extends PostDefendAbAttr {
     return false;
   }
 
-  getTriggerMessage(pokemon: Pokemon, abilityName: string, ...args: any[]): string {
+  override getTriggerMessage(pokemon: Pokemon, abilityName: string, ..._args: any[]): string {
     return i18next.t("abilityTriggers:postDefendAbilityGive", {
       pokemonNameWithAffix: getPokemonNameWithAffix(pokemon),
       abilityName
@@ -1056,8 +1064,8 @@ export class PostDefendMoveDisableAbAttr extends PostDefendAbAttr {
     this.chance = chance;
   }
 
-  applyPostDefend(pokemon: Pokemon, passive: boolean, simulated: boolean, attacker: Pokemon, move: Move, hitResult: HitResult, args: any[]): boolean {
-    if (attacker.getTag(BattlerTagType.DISABLED) === null) {
+  override applyPostDefend(pokemon: Pokemon, _passive: boolean, simulated: boolean, attacker: Pokemon, move: Move, _hitResult: HitResult, _args: any[]): boolean {
+    if (attacker.getTag(BattlerTagType.DISABLED) === null && !move.hitsSubstitute(attacker, pokemon)) {
       if (move.checkFlag(MoveFlags.MAKES_CONTACT, attacker, pokemon) && (this.chance === -1 || pokemon.randSeedInt(100) < this.chance)) {
         if (simulated) {
           return true;
@@ -1724,17 +1732,17 @@ export class PostAttackApplyBattlerTagAbAttr extends PostAttackAbAttr {
 }
 
 export class PostDefendStealHeldItemAbAttr extends PostDefendAbAttr {
-  private condition: PokemonDefendCondition | null;
+  private condition?: PokemonDefendCondition;
 
   constructor(condition?: PokemonDefendCondition) {
     super();
 
-    this.condition = condition ?? null;
+    this.condition = condition;
   }
 
-  applyPostDefend(pokemon: Pokemon, passive: boolean, simulated: boolean, attacker: Pokemon, move: Move, hitResult: HitResult, args: any[]): Promise<boolean> {
+  override applyPostDefend(pokemon: Pokemon, _passive: boolean, simulated: boolean, attacker: Pokemon, move: Move, hitResult: HitResult, _args: any[]): Promise<boolean> {
     return new Promise<boolean>(resolve => {
-      if (!simulated && hitResult < HitResult.NO_EFFECT && (!this.condition || this.condition(pokemon, attacker, move))) {
+      if (!simulated && hitResult < HitResult.NO_EFFECT && (!this.condition || this.condition(pokemon, attacker, move)) && !move.hitsSubstitute(attacker, pokemon)) {
         const heldItems = this.getTargetHeldItems(attacker).filter(i => i.isTransferable);
         if (heldItems.length) {
           const stolenItem = heldItems[pokemon.randSeedInt(heldItems.length)];
@@ -4476,7 +4484,7 @@ export class PostSummonStatStageChangeOnArenaAbAttr extends PostSummonStatStageC
 export class FormBlockDamageAbAttr extends ReceivedMoveDamageMultiplierAbAttr {
   private multiplier: number;
   private tagType: BattlerTagType;
-  private recoilDamageFunc: ((pokemon: Pokemon) => number) | undefined;
+  private recoilDamageFunc?: ((pokemon: Pokemon) => number);
   private triggerMessageFunc: (pokemon: Pokemon, abilityName: string) => string;
 
   constructor(condition: PokemonDefendCondition, multiplier: number, tagType: BattlerTagType, triggerMessageFunc: (pokemon: Pokemon, abilityName: string) => string, recoilDamageFunc?: (pokemon: Pokemon) => number) {
@@ -4492,16 +4500,16 @@ export class FormBlockDamageAbAttr extends ReceivedMoveDamageMultiplierAbAttr {
    * Applies the pre-defense ability to the Pokémon.
    * Removes the appropriate `BattlerTagType` when hit by an attack and is in its defense form.
    *
-   * @param {Pokemon} pokemon The Pokémon with the ability.
-   * @param {boolean} passive n/a
-   * @param {Pokemon} attacker The attacking Pokémon.
-   * @param {PokemonMove} move The move being used.
-   * @param {Utils.BooleanHolder} cancelled n/a
-   * @param {any[]} args Additional arguments.
-   * @returns {boolean} Whether the immunity was applied.
+   * @param pokemon The Pokémon with the ability.
+   * @param _passive n/a
+   * @param attacker The attacking Pokémon.
+   * @param move The move being used.
+   * @param _cancelled n/a
+   * @param args Additional arguments.
+   * @returns `true` if the immunity was applied.
    */
-  applyPreDefend(pokemon: Pokemon, passive: boolean, simulated: boolean, attacker: Pokemon, move: Move, cancelled: Utils.BooleanHolder, args: any[]): boolean {
-    if (this.condition(pokemon, attacker, move)) {
+  override applyPreDefend(pokemon: Pokemon, _passive: boolean, simulated: boolean, attacker: Pokemon, move: Move, _cancelled: Utils.BooleanHolder, args: any[]): boolean {
+    if (this.condition(pokemon, attacker, move) && !move.hitsSubstitute(attacker, pokemon)) {
       if (!simulated) {
         (args[0] as Utils.NumberHolder).value = this.multiplier;
         pokemon.removeTag(this.tagType);
@@ -4517,12 +4525,12 @@ export class FormBlockDamageAbAttr extends ReceivedMoveDamageMultiplierAbAttr {
 
   /**
    * Gets the message triggered when the Pokémon avoids damage using the form-changing ability.
-   * @param {Pokemon} pokemon The Pokémon with the ability.
-   * @param {string} abilityName The name of the ability.
-   * @param {...any} args n/a
-   * @returns {string} The trigger message.
+   * @param pokemon The Pokémon with the ability.
+   * @param abilityName The name of the ability.
+   * @param _args n/a
+   * @returns The trigger message.
    */
-  getTriggerMessage(pokemon: Pokemon, abilityName: string, ...args: any[]): string {
+  getTriggerMessage(pokemon: Pokemon, abilityName: string, ..._args: any[]): string {
     return this.triggerMessageFunc(pokemon, abilityName);
   }
 }
@@ -5503,7 +5511,8 @@ export function initAbilities() {
       .attr(NoFusionAbilityAbAttr)
       // Add BattlerTagType.DISGUISE if the pokemon is in its disguised form
       .conditionalAttr(pokemon => pokemon.formIndex === 0, PostSummonAddBattlerTagAbAttr, BattlerTagType.DISGUISE, 0, false)
-      .attr(FormBlockDamageAbAttr, (target, user, move) => !!target.getTag(BattlerTagType.DISGUISE) && target.getMoveEffectiveness(user, move) > 0, 0, BattlerTagType.DISGUISE,
+      .attr(FormBlockDamageAbAttr,
+        (target, user, move) => !!target.getTag(BattlerTagType.DISGUISE) && target.getMoveEffectiveness(user, move) > 0, 0, BattlerTagType.DISGUISE,
         (pokemon, abilityName) => i18next.t("abilityTriggers:disguiseAvoidedDamage", { pokemonNameWithAffix: getPokemonNameWithAffix(pokemon), abilityName: abilityName }),
         (pokemon) => Utils.toDmgValue(pokemon.getMaxHp() / 8))
       .attr(PostBattleInitFormChangeAbAttr, () => 0)
@@ -5665,7 +5674,8 @@ export function initAbilities() {
       .conditionalAttr(getWeatherCondition(WeatherType.HAIL, WeatherType.SNOW), PostSummonAddBattlerTagAbAttr, BattlerTagType.ICE_FACE, 0)
       // When weather changes to HAIL or SNOW while pokemon is fielded, add BattlerTagType.ICE_FACE
       .attr(PostWeatherChangeAddBattlerTagAttr, BattlerTagType.ICE_FACE, 0, WeatherType.HAIL, WeatherType.SNOW)
-      .attr(FormBlockDamageAbAttr, (target, user, move) => move.category === MoveCategory.PHYSICAL && !!target.getTag(BattlerTagType.ICE_FACE), 0, BattlerTagType.ICE_FACE,
+      .attr(FormBlockDamageAbAttr,
+        (target, user, move) => move.category === MoveCategory.PHYSICAL && !!target.getTag(BattlerTagType.ICE_FACE), 0, BattlerTagType.ICE_FACE,
         (pokemon, abilityName) => i18next.t("abilityTriggers:iceFaceAvoidedDamage", { pokemonNameWithAffix: getPokemonNameWithAffix(pokemon), abilityName: abilityName }))
       .attr(PostBattleInitFormChangeAbAttr, () => 0)
       .bypassFaint()
diff --git a/src/data/battler-tags.ts b/src/data/battler-tags.ts
index 6307b3d28be..24c82e54427 100644
--- a/src/data/battler-tags.ts
+++ b/src/data/battler-tags.ts
@@ -2139,6 +2139,10 @@ export class GulpMissileTag extends BattlerTag {
         return false;
       }
 
+      if (moveEffectPhase.move.getMove().hitsSubstitute(attacker, pokemon)) {
+        return true;
+      }
+
       const cancelled = new Utils.BooleanHolder(false);
       applyAbAttrs(BlockNonDirectDamageAbAttr, attacker, cancelled);
 
diff --git a/src/data/move.ts b/src/data/move.ts
index bae8eea0d8a..ff0c24f5032 100644
--- a/src/data/move.ts
+++ b/src/data/move.ts
@@ -4844,14 +4844,14 @@ export class GulpMissileTagAttr extends MoveEffectAttr {
 
   /**
    * Adds BattlerTagType from GulpMissileTag based on the Pokemon's HP ratio.
-   * @param {Pokemon} user The Pokemon using the move.
-   * @param {Pokemon} target The Pokemon being targeted by the move.
-   * @param {Move} move The move being used.
-   * @param {any[]} args Additional arguments, if any.
+   * @param user The Pokemon using the move.
+   * @param _target N/A
+   * @param move The move being used.
+   * @param _args N/A
    * @returns Whether the BattlerTag is applied.
    */
-  apply(user: Pokemon, target: Pokemon, move: Move, args: any[]): boolean | Promise<boolean> {
-    if (!super.apply(user, target, move, args)) {
+  apply(user: Pokemon, _target: Pokemon, move: Move, _args: any[]): boolean {
+    if (!super.apply(user, _target, move, _args)) {
       return false;
     }
 
diff --git a/src/test/abilities/disguise.test.ts b/src/test/abilities/disguise.test.ts
index a295dd61443..0241aa4b9ea 100644
--- a/src/test/abilities/disguise.test.ts
+++ b/src/test/abilities/disguise.test.ts
@@ -1,8 +1,9 @@
+import { BattlerIndex } from "#app/battle";
+import { StatusEffect } from "#app/data/status-effect";
 import { toDmgValue } from "#app/utils";
 import { Abilities } from "#enums/abilities";
 import { Moves } from "#enums/moves";
 import { Species } from "#enums/species";
-import { StatusEffect } from "#app/data/status-effect";
 import { Stat } from "#enums/stat";
 import GameManager from "#test/utils/gameManager";
 import { afterEach, beforeAll, beforeEach, describe, expect, it } from "vitest";
@@ -222,4 +223,17 @@ describe("Abilities - Disguise", () => {
     expect(mimikyu.formIndex).toBe(bustedForm);
     expect(mimikyu.hp).toBe(maxHp - disguiseDamage);
   });
+
+  it("doesn't trigger if user is behind a substitute", async () => {
+    game.override
+      .enemyMoveset(Moves.SUBSTITUTE)
+      .moveset(Moves.POWER_TRIP);
+    await game.classicMode.startBattle();
+
+    game.move.select(Moves.POWER_TRIP);
+    await game.setTurnOrder([ BattlerIndex.ENEMY, BattlerIndex.PLAYER ]);
+    await game.toNextTurn();
+
+    expect(game.scene.getEnemyPokemon()!.formIndex).toBe(disguisedForm);
+  });
 });
diff --git a/src/test/abilities/gulp_missile.test.ts b/src/test/abilities/gulp_missile.test.ts
index 1ca208996b5..01b68d0c89d 100644
--- a/src/test/abilities/gulp_missile.test.ts
+++ b/src/test/abilities/gulp_missile.test.ts
@@ -1,13 +1,14 @@
-import { BattlerTagType } from "#enums/battler-tag-type";
-import { StatusEffect } from "#enums/status-effect";
+import { BattlerIndex } from "#app/battle";
 import Pokemon from "#app/field/pokemon";
-import GameManager from "#test/utils/gameManager";
 import { Abilities } from "#enums/abilities";
+import { BattlerTagType } from "#enums/battler-tag-type";
 import { Moves } from "#enums/moves";
 import { Species } from "#enums/species";
+import { Stat } from "#enums/stat";
+import { StatusEffect } from "#enums/status-effect";
+import GameManager from "#test/utils/gameManager";
 import Phaser from "phaser";
 import { afterEach, beforeAll, beforeEach, describe, expect, it, vi } from "vitest";
-import { Stat } from "#enums/stat";
 
 describe("Abilities - Gulp Missile", () => {
   let phaserGame: Phaser.Game;
@@ -40,8 +41,9 @@ describe("Abilities - Gulp Missile", () => {
   beforeEach(() => {
     game = new GameManager(phaserGame);
     game.override
+      .disableCrits()
       .battleType("single")
-      .moveset([ Moves.SURF, Moves.DIVE, Moves.SPLASH ])
+      .moveset([ Moves.SURF, Moves.DIVE, Moves.SPLASH, Moves.SUBSTITUTE ])
       .enemySpecies(Species.SNORLAX)
       .enemyAbility(Abilities.BALL_FETCH)
       .enemyMoveset(Moves.SPLASH)
@@ -234,6 +236,25 @@ describe("Abilities - Gulp Missile", () => {
     expect(game.scene.getEnemyPokemon()!.getStatStage(Stat.DEF)).toBe(-1);
   });
 
+  it("doesn't trigger if user is behind a substitute", async () => {
+    game.override
+      .enemyAbility(Abilities.STURDY)
+      .enemyMoveset([ Moves.SPLASH, Moves.POWER_TRIP ]);
+    await game.classicMode.startBattle([ Species.CRAMORANT ]);
+
+    game.move.select(Moves.SURF);
+    await game.forceEnemyMove(Moves.SPLASH);
+    await game.toNextTurn();
+
+    expect(game.scene.getPlayerPokemon()!.formIndex).toBe(GULPING_FORM);
+
+    game.move.select(Moves.SUBSTITUTE);
+    await game.forceEnemyMove(Moves.POWER_TRIP);
+    await game.setTurnOrder([ BattlerIndex.PLAYER, BattlerIndex.ENEMY ]);
+    await game.toNextTurn();
+
+    expect(game.scene.getPlayerPokemon()!.formIndex).toBe(GULPING_FORM);
+  });
 
   it("cannot be suppressed", async () => {
     game.override.enemyMoveset(Moves.GASTRO_ACID);
diff --git a/src/test/abilities/ice_face.test.ts b/src/test/abilities/ice_face.test.ts
index 723d5e8d855..1c7f7bd6093 100644
--- a/src/test/abilities/ice_face.test.ts
+++ b/src/test/abilities/ice_face.test.ts
@@ -1,3 +1,4 @@
+import { BattlerIndex } from "#app/battle";
 import { MoveEffectPhase } from "#app/phases/move-effect-phase";
 import { MoveEndPhase } from "#app/phases/move-end-phase";
 import { QuietFormChangePhase } from "#app/phases/quiet-form-change-phase";
@@ -36,7 +37,7 @@ describe("Abilities - Ice Face", () => {
   });
 
   it("takes no damage from physical move and transforms to Noice", async () => {
-    await game.startBattle([ Species.HITMONLEE ]);
+    await game.classicMode.startBattle([ Species.HITMONLEE ]);
 
     game.move.select(Moves.TACKLE);
 
@@ -52,7 +53,7 @@ describe("Abilities - Ice Face", () => {
   it("takes no damage from the first hit of multihit physical move and transforms to Noice", async () => {
     game.override.moveset([ Moves.SURGING_STRIKES ]);
     game.override.enemyLevel(1);
-    await game.startBattle([ Species.HITMONLEE ]);
+    await game.classicMode.startBattle([ Species.HITMONLEE ]);
 
     game.move.select(Moves.SURGING_STRIKES);
 
@@ -78,7 +79,7 @@ describe("Abilities - Ice Face", () => {
   });
 
   it("takes damage from special moves", async () => {
-    await game.startBattle([ Species.MAGIKARP ]);
+    await game.classicMode.startBattle([ Species.MAGIKARP ]);
 
     game.move.select(Moves.ICE_BEAM);
 
@@ -92,7 +93,7 @@ describe("Abilities - Ice Face", () => {
   });
 
   it("takes effects from status moves", async () => {
-    await game.startBattle([ Species.MAGIKARP ]);
+    await game.classicMode.startBattle([ Species.MAGIKARP ]);
 
     game.move.select(Moves.TOXIC_THREAD);
 
@@ -108,7 +109,7 @@ describe("Abilities - Ice Face", () => {
     game.override.moveset([ Moves.QUICK_ATTACK ]);
     game.override.enemyMoveset([ Moves.HAIL, Moves.HAIL, Moves.HAIL, Moves.HAIL ]);
 
-    await game.startBattle([ Species.MAGIKARP ]);
+    await game.classicMode.startBattle([ Species.MAGIKARP ]);
 
     game.move.select(Moves.QUICK_ATTACK);
 
@@ -130,7 +131,7 @@ describe("Abilities - Ice Face", () => {
     game.override.enemyMoveset([ Moves.TACKLE, Moves.TACKLE, Moves.TACKLE, Moves.TACKLE ]);
     game.override.moveset([ Moves.SNOWSCAPE ]);
 
-    await game.startBattle([ Species.EISCUE, Species.NINJASK ]);
+    await game.classicMode.startBattle([ Species.EISCUE, Species.NINJASK ]);
 
     game.move.select(Moves.SNOWSCAPE);
 
@@ -157,7 +158,7 @@ describe("Abilities - Ice Face", () => {
     game.override.enemySpecies(Species.SHUCKLE);
     game.override.enemyMoveset([ Moves.TACKLE, Moves.TACKLE, Moves.TACKLE, Moves.TACKLE ]);
 
-    await game.startBattle([ Species.EISCUE ]);
+    await game.classicMode.startBattle([ Species.EISCUE ]);
 
     game.move.select(Moves.HAIL);
     const eiscue = game.scene.getPlayerPokemon()!;
@@ -176,7 +177,7 @@ describe("Abilities - Ice Face", () => {
   it("persists form change when switched out", async () => {
     game.override.enemyMoveset([ Moves.QUICK_ATTACK, Moves.QUICK_ATTACK, Moves.QUICK_ATTACK, Moves.QUICK_ATTACK ]);
 
-    await game.startBattle([ Species.EISCUE, Species.MAGIKARP ]);
+    await game.classicMode.startBattle([ Species.EISCUE, Species.MAGIKARP ]);
 
     game.move.select(Moves.ICE_BEAM);
 
@@ -205,7 +206,7 @@ describe("Abilities - Ice Face", () => {
       [Species.EISCUE]: noiceForm,
     });
 
-    await game.startBattle([ Species.EISCUE ]);
+    await game.classicMode.startBattle([ Species.EISCUE ]);
 
     const eiscue = game.scene.getPlayerPokemon()!;
 
@@ -222,10 +223,23 @@ describe("Abilities - Ice Face", () => {
     expect(eiscue.getTag(BattlerTagType.ICE_FACE)).not.toBe(undefined);
   });
 
+  it("doesn't trigger if user is behind a substitute", async () => {
+    game.override
+      .enemyMoveset(Moves.SUBSTITUTE)
+      .moveset(Moves.POWER_TRIP);
+    await game.classicMode.startBattle();
+
+    game.move.select(Moves.POWER_TRIP);
+    await game.setTurnOrder([ BattlerIndex.ENEMY, BattlerIndex.PLAYER ]);
+    await game.toNextTurn();
+
+    expect(game.scene.getEnemyPokemon()!.formIndex).toBe(icefaceForm);
+  });
+
   it("cannot be suppressed", async () => {
     game.override.moveset([ Moves.GASTRO_ACID ]);
 
-    await game.startBattle([ Species.MAGIKARP ]);
+    await game.classicMode.startBattle([ Species.MAGIKARP ]);
 
     game.move.select(Moves.GASTRO_ACID);
 
@@ -241,7 +255,7 @@ describe("Abilities - Ice Face", () => {
   it("cannot be swapped with another ability", async () => {
     game.override.moveset([ Moves.SKILL_SWAP ]);
 
-    await game.startBattle([ Species.MAGIKARP ]);
+    await game.classicMode.startBattle([ Species.MAGIKARP ]);
 
     game.move.select(Moves.SKILL_SWAP);
 
@@ -257,7 +271,7 @@ describe("Abilities - Ice Face", () => {
   it("cannot be copied", async () => {
     game.override.ability(Abilities.TRACE);
 
-    await game.startBattle([ Species.MAGIKARP ]);
+    await game.classicMode.startBattle([ Species.MAGIKARP ]);
 
     game.move.select(Moves.SIMPLE_BEAM);