diff --git a/.gitignore b/.gitignore
index 55f9203a8..a19a17696 100644
--- a/.gitignore
+++ b/.gitignore
@@ -35,4 +35,4 @@ src/data/battle-anim-raw-data*.ts
 src/data/battle-anim-data.ts
 src/overrides.ts
 
-coverage
\ No newline at end of file
+coverage
diff --git a/src/data/ability.ts b/src/data/ability.ts
index eec1240e1..b0f5476a0 100644
--- a/src/data/ability.ts
+++ b/src/data/ability.ts
@@ -887,6 +887,30 @@ export class VariableMovePowerAbAttr extends PreAttackAbAttr {
   }
 }
 
+export class PreAttackChangeType  extends PreAttackAbAttr{
+  private condition: PokemonAttackCondition;
+  
+  constructor (condition:PokemonAttackCondition) {
+    super(true);
+    this.condition = condition;
+  }
+  
+  applyPreAttack(pokemon:Pokemon,passive:boolean,defender:Pokemon,move:PokemonMove): boolean{
+    const MoveType = move.getMove().type;
+    const originalType = pokemon.getTypes();
+
+    if (this.condition(pokemon,defender,move.getMove())){
+      if (originalType.length > 1 || originalType[0] !== MoveType){
+        pokemon.summonData.types = [MoveType];
+        pokemon.battleSummonData.abilityTriggered = true;
+        pokemon.updateInfo();
+        pokemon.scene.queueMessage(getPokemonMessage(pokemon, ` tranformed\ninto the ${Utils.toReadableString(Type[MoveType])} type!`));
+      }
+    }
+    return false;
+  }
+}
+ 
 export class VariableMoveTypeAbAttr extends AbAttr {
   apply(pokemon: Pokemon, passive: boolean, cancelled: Utils.BooleanHolder, args: any[]): boolean {
     //const power = args[0] as Utils.IntegerHolder;
@@ -3144,7 +3168,7 @@ export function initAbilities() {
     new Ability(Abilities.CHEEK_POUCH, 6)
       .unimplemented(),
     new Ability(Abilities.PROTEAN, 6)
-      .unimplemented(),
+      .attr(PreAttackChangeType,(user,target,move) => move.id !== Moves.STRUGGLE && !user.isTerastallized() && user.battleSummonData.abilityTriggered === false), 
     new Ability(Abilities.FUR_COAT, 6)
       .attr(ReceivedMoveDamageMultiplierAbAttr, (target, user, move) => move.category === MoveCategory.PHYSICAL, 0.5)
       .ignorable(),
@@ -3364,7 +3388,7 @@ export function initAbilities() {
     new Ability(Abilities.DAUNTLESS_SHIELD, 8)
       .attr(PostSummonStatChangeAbAttr, BattleStat.DEF, 1, true),
     new Ability(Abilities.LIBERO, 8)
-      .unimplemented(),
+    .attr(PreAttackChangeType,(user,target,move) => move.id !== Moves.STRUGGLE && !user.isTerastallized() && user.battleSummonData.abilityTriggered === false),
     new Ability(Abilities.BALL_FETCH, 8)
       .unimplemented(),
     new Ability(Abilities.COTTON_DOWN, 8)
diff --git a/src/field/pokemon.ts b/src/field/pokemon.ts
index b20096513..ac1b784b5 100644
--- a/src/field/pokemon.ts
+++ b/src/field/pokemon.ts
@@ -27,6 +27,7 @@ import { TempBattleStat } from '../data/temp-battle-stat';
 import { ArenaTagSide, WeakenMoveScreenTag, WeakenMoveTypeTag } from '../data/arena-tag';
 import { ArenaTagType } from "../data/enums/arena-tag-type";
 import { Biome } from "../data/enums/biome";
+import { Ability, AbAttr, BattleStatMultiplierAbAttr, BlockCritAbAttr, BonusCritAbAttr, BypassBurnDamageReductionAbAttr, FieldPriorityMoveImmunityAbAttr, FieldVariableMovePowerAbAttr, IgnoreOpponentStatChangesAbAttr, MoveImmunityAbAttr, MoveTypeChangeAttr, NonSuperEffectiveImmunityAbAttr, PreApplyBattlerTagAbAttr, PreDefendFullHpEndureAbAttr, ReceivedMoveDamageMultiplierAbAttr, ReduceStatusEffectDurationAbAttr, StabBoostAbAttr, StatusEffectImmunityAbAttr, TypeImmunityAbAttr, VariableMovePowerAbAttr, VariableMoveTypeAbAttr, WeightMultiplierAbAttr, allAbilities, applyAbAttrs, applyBattleStatMultiplierAbAttrs, applyPostDefendAbAttrs, applyPreApplyBattlerTagAbAttrs, applyPreAttackAbAttrs, applyPreDefendAbAttrs, applyPreSetStatusAbAttrs, UnsuppressableAbilityAbAttr, SuppressFieldAbilitiesAbAttr, NoFusionAbilityAbAttr, PreAttackChangeType } from '../data/ability';
 import { Ability, AbAttr, BattleStatMultiplierAbAttr, BlockCritAbAttr, BonusCritAbAttr, BypassBurnDamageReductionAbAttr, FieldPriorityMoveImmunityAbAttr, FieldVariableMovePowerAbAttr, IgnoreOpponentStatChangesAbAttr, MoveImmunityAbAttr, MoveTypeChangeAttr, NonSuperEffectiveImmunityAbAttr, PreApplyBattlerTagAbAttr, PreDefendFullHpEndureAbAttr, ReceivedMoveDamageMultiplierAbAttr, ReduceStatusEffectDurationAbAttr, StabBoostAbAttr, StatusEffectImmunityAbAttr, TypeImmunityAbAttr, VariableMovePowerAbAttr, VariableMoveTypeAbAttr, WeightMultiplierAbAttr, allAbilities, applyAbAttrs, applyBattleStatMultiplierAbAttrs, applyPostDefendAbAttrs, applyPreApplyBattlerTagAbAttrs, applyPreAttackAbAttrs, applyPreDefendAbAttrs, applyPreSetStatusAbAttrs, UnsuppressableAbilityAbAttr, SuppressFieldAbilitiesAbAttr, NoFusionAbilityAbAttr, MultCritAbAttr } from '../data/ability';
 import { Abilities } from "#app/data/enums/abilities";
 import PokemonData from '../system/pokemon-data';
@@ -1256,6 +1257,7 @@ export default abstract class Pokemon extends Phaser.GameObjects.Container {
     // 2nd argument is for MoveTypeChangePowerMultiplierAbAttr
     applyAbAttrs(VariableMoveTypeAbAttr, source, null, variableType, typeChangeMovePowerMultiplier);
     applyPreAttackAbAttrs(MoveTypeChangeAttr, source, this, battlerMove, variableType, typeChangeMovePowerMultiplier);
+    applyPreAttackAbAttrs(PreAttackChangeType,source,this,battlerMove,)
     const type = variableType.value as Type;
     const types = this.getTypes(true, true);
 
@@ -3109,12 +3111,13 @@ export class PokemonSummonData {
 export class PokemonBattleData {
   public hitCount: integer = 0;
   public endured: boolean = false;
-  public berriesEaten: BerryType[] = [];
+  public berriesEaten: BerryType[] = []; 
 }
 
 export class PokemonBattleSummonData {
   public turnCount: integer = 1;
   public moveHistory: TurnMove[] = [];
+  public abilityTriggered: boolean = false;
 }
 
 export class PokemonTurnData {