diff --git a/src/battle.ts b/src/battle.ts
index b80caa9e679..a3e7b0a4336 100644
--- a/src/battle.ts
+++ b/src/battle.ts
@@ -1,5 +1,4 @@
 import BattleScene from "./battle-scene";
-import { EnemyPokemon, PlayerPokemon, QueuedMove } from "./field/pokemon";
 import { Command } from "./ui/command-ui-handler";
 import * as Utils from "./utils";
 import Trainer, { TrainerVariant } from "./field/trainer";
@@ -7,6 +6,7 @@ import { GameMode } from "./game-mode";
 import { MoneyMultiplierModifier, PokemonHeldItemModifier } from "./modifier/modifier";
 import { PokeballType } from "./data/pokeball";
 import { trainerConfigs } from "#app/data/trainer-config";
+import Pokemon, { EnemyPokemon, PlayerPokemon, QueuedMove } from "#app/field/pokemon";
 import { ArenaTagType } from "#enums/arena-tag-type";
 import { BattleSpec } from "#enums/battle-spec";
 import { Moves } from "#enums/moves";
@@ -38,6 +38,11 @@ export interface TurnCommand {
     args?: any[];
 }
 
+export interface FaintLogEntry {
+  pokemon: Pokemon,
+  turn: number
+}
+
 interface TurnCommands {
     [key: number]: TurnCommand | null
 }
@@ -69,6 +74,8 @@ export default class Battle {
   public playerFaints: number = 0;
   /** The number of times a Pokemon on the enemy's side has fainted this battle */
   public enemyFaints: number = 0;
+  public playerFaintsHistory: FaintLogEntry[] = [];
+  public enemyFaintsHistory: FaintLogEntry[] = [];
 
   private rngCounter: number = 0;
 
diff --git a/src/data/move.ts b/src/data/move.ts
index 135122311ff..9916ccc1c9f 100644
--- a/src/data/move.ts
+++ b/src/data/move.ts
@@ -8024,7 +8024,15 @@ export function initMoves() {
     new StatusMove(Moves.REFLECT_TYPE, Type.NORMAL, -1, 15, -1, 0, 5)
       .attr(CopyTypeAttr),
     new AttackMove(Moves.RETALIATE, Type.NORMAL, MoveCategory.PHYSICAL, 70, 100, 5, -1, 0, 5)
-      .partial(),
+      .attr(MovePowerMultiplierAttr, (user, target, move) => {
+        const turn = user.scene.currentBattle.turn;
+        const lastPlayerFaint = user.scene.currentBattle.playerFaintsHistory[user.scene.currentBattle.playerFaintsHistory.length - 1];
+        const lastEnemyFaint = user.scene.currentBattle.enemyFaintsHistory[user.scene.currentBattle.enemyFaintsHistory.length - 1];
+        return (
+          (lastPlayerFaint !== undefined && turn - lastPlayerFaint.turn === 1 && user.isPlayer()) ||
+          (lastEnemyFaint !== undefined && turn - lastEnemyFaint.turn === 1 && !user.isPlayer())
+        ) ? 2 : 1;
+      }),
     new AttackMove(Moves.FINAL_GAMBIT, Type.FIGHTING, MoveCategory.SPECIAL, -1, 100, 5, -1, 0, 5)
       .attr(UserHpDamageAttr)
       .attr(SacrificialAttrOnHit),
diff --git a/src/phases/faint-phase.ts b/src/phases/faint-phase.ts
index c30003b79aa..169d667113a 100644
--- a/src/phases/faint-phase.ts
+++ b/src/phases/faint-phase.ts
@@ -55,8 +55,10 @@ export class FaintPhase extends PokemonPhase {
     // Track total times pokemon have been KO'd for supreme overlord/last respects
     if (pokemon.isPlayer()) {
       this.scene.currentBattle.playerFaints += 1;
+      this.scene.currentBattle.playerFaintsHistory.push({ pokemon: pokemon, turn: this.scene.currentBattle.turn });
     } else {
       this.scene.currentBattle.enemyFaints += 1;
+      this.scene.currentBattle.enemyFaintsHistory.push({ pokemon: pokemon, turn: this.scene.currentBattle.turn });
     }
 
     this.scene.queueMessage(i18next.t("battle:fainted", { pokemonNameWithAffix: getPokemonNameWithAffix(pokemon) }), null, true);
diff --git a/src/test/moves/retaliate.test.ts b/src/test/moves/retaliate.test.ts
new file mode 100644
index 00000000000..62965fffba6
--- /dev/null
+++ b/src/test/moves/retaliate.test.ts
@@ -0,0 +1,49 @@
+import { afterEach, beforeAll, beforeEach, describe, expect, it, vi } from "vitest";
+import Phaser from "phaser";
+import GameManager from "#app/test/utils/gameManager";
+import { Species } from "#enums/species";
+import { Moves } from "#enums/moves";
+import { allMoves } from "#app/data/move";
+
+describe("Moves - Retaliate", () => {
+  let phaserGame: Phaser.Game;
+  let game: GameManager;
+
+  const retaliate = allMoves[Moves.RETALIATE];
+
+  beforeAll(() => {
+    phaserGame = new Phaser.Game({
+      type: Phaser.HEADLESS,
+    });
+  });
+
+  afterEach(() => {
+    game.phaseInterceptor.restoreOg();
+  });
+
+  beforeEach(() => {
+    game = new GameManager(phaserGame);
+    game.override
+      .battleType("single")
+      .enemySpecies(Species.SNORLAX)
+      .enemyMoveset([Moves.RETALIATE, Moves.RETALIATE, Moves.RETALIATE, Moves.RETALIATE])
+      .enemyLevel(100)
+      .moveset([Moves.RETALIATE, Moves.SPLASH])
+      .startingLevel(80)
+      .disableCrits();
+  });
+
+  it("increases power if ally died previous turn", async () => {
+    vi.spyOn(retaliate, "calculateBattlePower");
+    await game.startBattle([Species.ABRA, Species.COBALION]);
+    game.move.select(Moves.RETALIATE);
+    await game.phaseInterceptor.to("TurnEndPhase");
+    expect(retaliate.calculateBattlePower).toHaveLastReturnedWith(70);
+    game.doSelectPartyPokemon(1);
+
+    await game.toNextTurn();
+    game.move.select(Moves.RETALIATE);
+    await game.phaseInterceptor.to("MoveEffectPhase");
+    expect(retaliate.calculateBattlePower).toHaveReturnedWith(140);
+  });
+});