diff --git a/test/abilities/good_as_gold.test.ts b/test/abilities/good_as_gold.test.ts
index 89e354b1f34..2490cd43fea 100644
--- a/test/abilities/good_as_gold.test.ts
+++ b/test/abilities/good_as_gold.test.ts
@@ -45,7 +45,7 @@ describe("Abilities - Good As Gold", () => {
 
     const player = game.scene.getPlayerPokemon()!;
 
-    game.move.select(MoveId.SPLASH, 0);
+    game.move.select(MoveId.SPLASH);
 
     await game.phaseInterceptor.to("BerryPhase");
 
@@ -54,12 +54,13 @@ describe("Abilities - Good As Gold", () => {
   });
 
   it("should block memento and prevent the user from fainting", async () => {
-    game.override.enemyMoveset([MoveId.MEMENTO]);
+    game.override.enemyAbility(AbilityId.GOOD_AS_GOLD);
     await game.classicMode.startBattle([SpeciesId.MAGIKARP]);
-    game.move.select(MoveId.MEMENTO);
+
+    game.move.use(MoveId.MEMENTO);
     await game.phaseInterceptor.to("BerryPhase");
-    expect(game.scene.getPlayerPokemon()!.isFainted()).toBe(false);
-    expect(game.scene.getEnemyPokemon()?.getStatStage(Stat.ATK)).toBe(0);
+    expect(game.field.getPlayerPokemon().isFainted()).toBe(false);
+    expect(game.field.getEnemyPokemon().getStatStage(Stat.ATK)).toBe(0);
   });
 
   it("should not block any status moves that target the field, one side, or all pokemon", async () => {
diff --git a/test/abilities/ice_face.test.ts b/test/abilities/ice_face.test.ts
index c42713d7e6c..6e261eb00e2 100644
--- a/test/abilities/ice_face.test.ts
+++ b/test/abilities/ice_face.test.ts
@@ -259,7 +259,7 @@ describe("Abilities - Ice Face", () => {
 
     const eiscue = game.scene.getEnemyPokemon()!;
 
-    expect(eiscue.getTag(BattlerTagType.ICE_FACE)).not.toBe(undefined);
+    expect(eiscue.getTag(BattlerTagType.ICE_FACE)).toBeDefined();
     expect(eiscue.formIndex).toBe(icefaceForm);
     expect(eiscue.hasAbility(AbilityId.ICE_FACE)).toBe(true);
   });
@@ -269,13 +269,9 @@ describe("Abilities - Ice Face", () => {
 
     await game.classicMode.startBattle([SpeciesId.MAGIKARP]);
 
-    game.move.select(MoveId.SIMPLE_BEAM);
-
-    await game.phaseInterceptor.to(TurnInitPhase);
-
     const eiscue = game.scene.getEnemyPokemon()!;
 
-    expect(eiscue.getTag(BattlerTagType.ICE_FACE)).not.toBe(undefined);
+    expect(eiscue.getTag(BattlerTagType.ICE_FACE)).toBeDefined();
     expect(eiscue.formIndex).toBe(icefaceForm);
     expect(game.scene.getPlayerPokemon()!.hasAbility(AbilityId.TRACE)).toBe(true);
   });
diff --git a/test/abilities/imposter.test.ts b/test/abilities/imposter.test.ts
index 30491139877..976bc339dde 100644
--- a/test/abilities/imposter.test.ts
+++ b/test/abilities/imposter.test.ts
@@ -75,24 +75,31 @@ describe("Abilities - Imposter", () => {
   });
 
   it("should copy in-battle overridden stats", async () => {
-    game.override.enemyMoveset([MoveId.POWER_SPLIT]);
+    game.override.ability(AbilityId.BALL_FETCH);
+    await game.classicMode.startBattle([SpeciesId.MAGIKARP, SpeciesId.DITTO]);
 
-    await game.classicMode.startBattle([SpeciesId.DITTO]);
+    const [karp, ditto] = game.scene.getPlayerField();
+    const enemy = game.field.getEnemyPokemon();
+    game.field.mockAbility(ditto, AbilityId.IMPOSTER);
 
-    const player = game.scene.getPlayerPokemon()!;
-    const enemy = game.scene.getEnemyPokemon()!;
+    // Turn 1: Use power split
+    const avgAtk = Math.floor((karp.getStat(Stat.ATK, false) + enemy.getStat(Stat.ATK, false)) / 2);
+    const avgSpAtk = Math.floor((karp.getStat(Stat.SPATK, false) + enemy.getStat(Stat.SPATK, false)) / 2);
 
-    const avgAtk = Math.floor((player.getStat(Stat.ATK, false) + enemy.getStat(Stat.ATK, false)) / 2);
-    const avgSpAtk = Math.floor((player.getStat(Stat.SPATK, false) + enemy.getStat(Stat.SPATK, false)) / 2);
+    game.move.use(MoveId.SPLASH);
+    await game.move.forceEnemyMove(MoveId.POWER_SPLIT);
+    await game.toNextTurn();
 
-    game.move.select(MoveId.TACKLE);
-    await game.phaseInterceptor.to(TurnEndPhase);
-
-    expect(player.getStat(Stat.ATK, false)).toBe(avgAtk);
     expect(enemy.getStat(Stat.ATK, false)).toBe(avgAtk);
-
-    expect(player.getStat(Stat.SPATK, false)).toBe(avgSpAtk);
     expect(enemy.getStat(Stat.SPATK, false)).toBe(avgSpAtk);
+
+    // Turn 2: Switch in ditto, should copy enemy ability
+    game.doSwitchPokemon(1);
+    await game.move.forceEnemyMove(MoveId.SPLASH);
+    await game.toNextTurn();
+
+    expect(ditto.getStat(Stat.ATK, false)).toBe(avgAtk);
+    expect(ditto.getStat(Stat.SPATK, false)).toBe(avgSpAtk);
   });
 
   it("should set each move's pp to a maximum of 5", async () => {
@@ -101,31 +108,22 @@ describe("Abilities - Imposter", () => {
     await game.classicMode.startBattle([SpeciesId.DITTO]);
     const player = game.scene.getPlayerPokemon()!;
 
-    game.move.select(MoveId.TACKLE);
-    await game.phaseInterceptor.to(TurnEndPhase);
-
     player.getMoveset().forEach(move => {
       // Should set correct maximum PP without touching `ppUp`
-      if (move) {
-        if (move.moveId === MoveId.SKETCH) {
-          expect(move.getMovePp()).toBe(1);
-        } else {
-          expect(move.getMovePp()).toBe(5);
-        }
-        expect(move.ppUp).toBe(0);
+      if (move.moveId === MoveId.SKETCH) {
+        expect(move.getMovePp()).toBe(1);
+      } else {
+        expect(move.getMovePp()).toBe(5);
       }
+      expect(move.ppUp).toBe(0);
     });
   });
 
   it("should activate its ability if it copies one that activates on summon", async () => {
     game.override.enemyAbility(AbilityId.INTIMIDATE);
-
     await game.classicMode.startBattle([SpeciesId.DITTO]);
 
-    game.move.select(MoveId.TACKLE);
-    await game.phaseInterceptor.to("MoveEndPhase");
-
-    expect(game.scene.getEnemyPokemon()?.getStatStage(Stat.ATK)).toBe(-1);
+    expect(game.field.getEnemyPokemon().getStatStage(Stat.ATK)).toBe(-1);
   });
 
   it("should persist transformed attributes across reloads", async () => {
diff --git a/test/abilities/intimidate.test.ts b/test/abilities/intimidate.test.ts
index 3dcd9bcd129..6790e2b98d3 100644
--- a/test/abilities/intimidate.test.ts
+++ b/test/abilities/intimidate.test.ts
@@ -3,7 +3,6 @@ import Phaser from "phaser";
 import GameManager from "#test/testUtils/gameManager";
 import { UiMode } from "#enums/ui-mode";
 import { Stat } from "#enums/stat";
-import { getMovePosition } from "#test/testUtils/gameManagerUtils";
 import { AbilityId } from "#enums/ability-id";
 import { MoveId } from "#enums/move-id";
 import { SpeciesId } from "#enums/species-id";
@@ -114,7 +113,7 @@ describe("Abilities - Intimidate", () => {
     expect(enemyPokemon.getStatStage(Stat.ATK)).toBe(-1);
     expect(playerPokemon.getStatStage(Stat.ATK)).toBe(-1);
 
-    game.move.select(getMovePosition(game.scene, 0, MoveId.SPLASH));
+    game.move.select(MoveId.SPLASH);
     await game.toNextTurn();
 
     enemyPokemon = game.scene.getEnemyPokemon()!;
diff --git a/test/abilities/lightningrod.test.ts b/test/abilities/lightningrod.test.ts
index 2dc29500454..028258a9d56 100644
--- a/test/abilities/lightningrod.test.ts
+++ b/test/abilities/lightningrod.test.ts
@@ -36,10 +36,8 @@ describe("Abilities - Lightningrod", () => {
   it("should redirect electric type moves", async () => {
     await game.classicMode.startBattle([SpeciesId.FEEBAS, SpeciesId.MAGIKARP]);
 
-    const enemy1 = game.scene.getEnemyField()[0];
-    const enemy2 = game.scene.getEnemyField()[1];
-
-    enemy2.summonData.ability = AbilityId.LIGHTNING_ROD;
+    const [enemy1, enemy2] = game.scene.getEnemyField();
+    game.field.mockAbility(enemy2, AbilityId.LIGHTNING_ROD);
 
     game.move.select(MoveId.SHOCK_WAVE, BattlerIndex.PLAYER, BattlerIndex.ENEMY);
     game.move.select(MoveId.SPLASH, BattlerIndex.PLAYER_2);
@@ -52,10 +50,8 @@ describe("Abilities - Lightningrod", () => {
     game.override.moveset([MoveId.SPLASH, MoveId.AERIAL_ACE]);
     await game.classicMode.startBattle([SpeciesId.FEEBAS, SpeciesId.MAGIKARP]);
 
-    const enemy1 = game.scene.getEnemyField()[0];
-    const enemy2 = game.scene.getEnemyField()[1];
-
-    enemy2.summonData.ability = AbilityId.LIGHTNING_ROD;
+    const [enemy1, enemy2] = game.scene.getEnemyField();
+    game.field.mockAbility(enemy2, AbilityId.LIGHTNING_ROD);
 
     game.move.select(MoveId.AERIAL_ACE, BattlerIndex.PLAYER, BattlerIndex.ENEMY);
     game.move.select(MoveId.SPLASH, BattlerIndex.PLAYER_2);
@@ -68,8 +64,7 @@ describe("Abilities - Lightningrod", () => {
     await game.classicMode.startBattle([SpeciesId.FEEBAS, SpeciesId.MAGIKARP]);
 
     const enemy2 = game.scene.getEnemyField()[1];
-
-    enemy2.summonData.ability = AbilityId.LIGHTNING_ROD;
+    game.field.mockAbility(enemy2, AbilityId.LIGHTNING_ROD);
 
     game.move.select(MoveId.SHOCK_WAVE, BattlerIndex.PLAYER, BattlerIndex.ENEMY);
     game.move.select(MoveId.SPLASH, BattlerIndex.PLAYER_2);
@@ -81,31 +76,25 @@ describe("Abilities - Lightningrod", () => {
 
   it("should not redirect moves changed from electric type via ability", async () => {
     game.override.ability(AbilityId.NORMALIZE);
-    await game.classicMode.startBattle([SpeciesId.FEEBAS, SpeciesId.MAGIKARP]);
+    await game.classicMode.startBattle([SpeciesId.FEEBAS]);
 
-    const enemy1 = game.scene.getEnemyField()[0];
-    const enemy2 = game.scene.getEnemyField()[1];
-
-    enemy2.summonData.ability = AbilityId.LIGHTNING_ROD;
+    const [enemy1, enemy2] = game.scene.getEnemyField();
+    game.field.mockAbility(enemy2, AbilityId.LIGHTNING_ROD);
 
     game.move.select(MoveId.SHOCK_WAVE, BattlerIndex.PLAYER, BattlerIndex.ENEMY);
-    game.move.select(MoveId.SPLASH, BattlerIndex.PLAYER_2);
     await game.phaseInterceptor.to("BerryPhase");
 
     expect(enemy1.isFullHp()).toBe(false);
   });
 
   it("should redirect moves changed to electric type via ability", async () => {
-    game.override.ability(AbilityId.GALVANIZE).moveset(MoveId.TACKLE);
+    game.override.ability(AbilityId.GALVANIZE);
     await game.classicMode.startBattle([SpeciesId.FEEBAS, SpeciesId.MAGIKARP]);
 
-    const enemy1 = game.scene.getEnemyField()[0];
-    const enemy2 = game.scene.getEnemyField()[1];
+    const [enemy1, enemy2] = game.scene.getEnemyField();
+    game.field.mockAbility(enemy2, AbilityId.LIGHTNING_ROD);
 
-    enemy2.summonData.ability = AbilityId.LIGHTNING_ROD;
-
-    game.move.select(MoveId.TACKLE, BattlerIndex.PLAYER, BattlerIndex.ENEMY);
-    game.move.select(MoveId.SPLASH, BattlerIndex.PLAYER_2);
+    game.move.use(MoveId.TACKLE, BattlerIndex.PLAYER, BattlerIndex.ENEMY);
     await game.phaseInterceptor.to("BerryPhase");
 
     expect(enemy1.isFullHp()).toBe(true);
diff --git a/test/abilities/mold_breaker.test.ts b/test/abilities/mold_breaker.test.ts
index 28a077e8908..3fac3448f4d 100644
--- a/test/abilities/mold_breaker.test.ts
+++ b/test/abilities/mold_breaker.test.ts
@@ -1,8 +1,6 @@
-import { BattlerIndex } from "#enums/battler-index";
-import { globalScene } from "#app/global-scene";
-import { AbilityId } from "#enums/ability-id";
 import { MoveId } from "#enums/move-id";
 import { SpeciesId } from "#enums/species-id";
+import { AbilityId } from "#enums/ability-id";
 import GameManager from "#test/testUtils/gameManager";
 import Phaser from "phaser";
 import { afterEach, beforeAll, beforeEach, describe, expect, it } from "vitest";
@@ -24,29 +22,28 @@ describe("Abilities - Mold Breaker", () => {
   beforeEach(() => {
     game = new GameManager(phaserGame);
     game.override
-      .moveset([MoveId.SPLASH])
       .ability(AbilityId.MOLD_BREAKER)
       .battleStyle("single")
       .criticalHits(false)
       .enemySpecies(SpeciesId.MAGIKARP)
-      .enemyAbility(AbilityId.BALL_FETCH)
+      .enemyAbility(AbilityId.STURDY)
       .enemyMoveset(MoveId.SPLASH);
   });
 
   it("should turn off the ignore abilities arena variable after the user's move", async () => {
-    game.override
-      .enemyMoveset(MoveId.SPLASH)
-      .ability(AbilityId.MOLD_BREAKER)
-      .moveset([MoveId.ERUPTION])
-      .startingLevel(100)
-      .enemyLevel(2);
-    await game.classicMode.startBattle([SpeciesId.MAGIKARP]);
-    const enemy = game.scene.getEnemyPokemon()!;
+    await game.classicMode.startBattle([SpeciesId.PINSIR]);
 
-    expect(enemy.isFainted()).toBe(false);
-    game.move.select(MoveId.SPLASH);
-    await game.setTurnOrder([BattlerIndex.PLAYER, BattlerIndex.ENEMY]);
-    await game.phaseInterceptor.to("MoveEndPhase", true);
-    expect(globalScene.arena.ignoreAbilities).toBe(false);
+    const player = game.field.getPlayerPokemon();
+    const enemy = game.field.getEnemyPokemon();
+
+    game.move.use(MoveId.X_SCISSOR);
+    await game.phaseInterceptor.to("MoveEffectPhase");
+
+    expect(game.scene.arena.ignoreAbilities).toBe(true);
+    expect(game.scene.arena.ignoringEffectSource).toBe(player.getBattlerIndex());
+
+    await game.toEndOfTurn();
+    expect(game.scene.arena.ignoreAbilities).toBe(false);
+    expect(enemy.isFainted()).toBe(true);
   });
 });
diff --git a/test/abilities/moxie.test.ts b/test/abilities/moxie.test.ts
index a85ed081448..1c4acf139e4 100644
--- a/test/abilities/moxie.test.ts
+++ b/test/abilities/moxie.test.ts
@@ -65,8 +65,7 @@ describe("Abilities - Moxie", () => {
 
       secondPokemon.hp = 1;
 
-      game.move.select(moveToUse);
-      game.selectTarget(BattlerIndex.PLAYER_2);
+      game.move.select(moveToUse, BattlerIndex.PLAYER_2);
 
       await game.phaseInterceptor.to(TurnEndPhase);
 
diff --git a/test/abilities/storm_drain.test.ts b/test/abilities/storm_drain.test.ts
index 8eedf0c7ce8..6e56bf44fa7 100644
--- a/test/abilities/storm_drain.test.ts
+++ b/test/abilities/storm_drain.test.ts
@@ -96,16 +96,15 @@ describe("Abilities - Storm Drain", () => {
   });
 
   it("should redirect moves changed to water type via ability", async () => {
-    game.override.ability(AbilityId.LIQUID_VOICE).moveset(MoveId.PSYCHIC_NOISE);
-    await game.classicMode.startBattle([SpeciesId.FEEBAS, SpeciesId.MAGIKARP]);
+    game.override.ability(AbilityId.LIQUID_VOICE);
+    await game.classicMode.startBattle([SpeciesId.FEEBAS]);
 
     const enemy1 = game.scene.getEnemyField()[0];
     const enemy2 = game.scene.getEnemyField()[1];
 
     enemy2.summonData.ability = AbilityId.STORM_DRAIN;
 
-    game.move.select(MoveId.PSYCHIC_NOISE, BattlerIndex.PLAYER, BattlerIndex.ENEMY);
-    game.move.select(MoveId.SPLASH, BattlerIndex.PLAYER_2);
+    game.move.use(MoveId.HYPER_VOICE, BattlerIndex.PLAYER);
     await game.phaseInterceptor.to("BerryPhase");
 
     expect(enemy1.isFullHp()).toBe(true);
diff --git a/test/arena/weather_strong_winds.test.ts b/test/arena/weather_strong_winds.test.ts
index d0d256816eb..d98ba96fd85 100644
--- a/test/arena/weather_strong_winds.test.ts
+++ b/test/arena/weather_strong_winds.test.ts
@@ -86,7 +86,7 @@ describe("Weather - Strong Winds", () => {
     const enemy = game.scene.getEnemyPokemon()!;
     enemy.hp = 1;
 
-    game.move.select(MoveId.SPLASH);
+    game.move.use(MoveId.SPLASH);
     await game.phaseInterceptor.to("TurnEndPhase");
 
     expect(game.scene.arena.weather?.weatherType).toBeUndefined();
diff --git a/test/items/dire_hit.test.ts b/test/items/dire_hit.test.ts
index 25fe9c8b876..a484a0ad302 100644
--- a/test/items/dire_hit.test.ts
+++ b/test/items/dire_hit.test.ts
@@ -58,8 +58,7 @@ describe("Items - Dire Hit", () => {
 
     await game.classicMode.startBattle([SpeciesId.PIKACHU]);
 
-    game.move.select(MoveId.SPLASH);
-
+    game.move.use(MoveId.SPLASH);
     await game.doKillOpponents();
 
     await game.phaseInterceptor.to(BattleEndPhase);
diff --git a/test/moves/aurora_veil.test.ts b/test/moves/aurora_veil.test.ts
index b9ae79e4155..8faf3654401 100644
--- a/test/moves/aurora_veil.test.ts
+++ b/test/moves/aurora_veil.test.ts
@@ -4,7 +4,6 @@ import type Move from "#app/data/moves/move";
 import { allMoves } from "#app/data/data-lists";
 import { ArenaTagType } from "#app/enums/arena-tag-type";
 import type Pokemon from "#app/field/pokemon";
-import { TurnEndPhase } from "#app/phases/turn-end-phase";
 import { NumberHolder } from "#app/utils/common";
 import { AbilityId } from "#enums/ability-id";
 import { MoveId } from "#enums/move-id";
@@ -12,7 +11,7 @@ import { SpeciesId } from "#enums/species-id";
 import { WeatherType } from "#enums/weather-type";
 import GameManager from "#test/testUtils/gameManager";
 import Phaser from "phaser";
-import { afterEach, beforeAll, beforeEach, describe, expect, it, vi } from "vitest";
+import { afterEach, beforeAll, beforeEach, describe, expect, it } from "vitest";
 
 let globalScene: BattleScene;
 
@@ -52,10 +51,10 @@ describe("Moves - Aurora Veil", () => {
 
     game.move.select(moveToUse);
 
-    await game.phaseInterceptor.to(TurnEndPhase);
+    await game.toEndOfTurn();
     const mockedDmg = getMockedMoveDamage(
-      game.scene.getEnemyPokemon()!,
-      game.scene.getPlayerPokemon()!,
+      game.field.getEnemyPokemon(),
+      game.field.getPlayerPokemon(),
       allMoves[moveToUse],
     );
 
@@ -71,10 +70,10 @@ describe("Moves - Aurora Veil", () => {
     game.move.select(moveToUse);
     game.move.select(moveToUse, 1);
 
-    await game.phaseInterceptor.to(TurnEndPhase);
+    await game.toEndOfTurn();
     const mockedDmg = getMockedMoveDamage(
-      game.scene.getEnemyPokemon()!,
-      game.scene.getPlayerPokemon()!,
+      game.field.getEnemyPokemon(),
+      game.field.getPlayerPokemon(),
       allMoves[moveToUse],
     );
 
@@ -82,72 +81,48 @@ describe("Moves - Aurora Veil", () => {
   });
 
   it("reduces damage of special attacks by half in a single battle", async () => {
-    const moveToUse = MoveId.ABSORB;
     await game.classicMode.startBattle([SpeciesId.SHUCKLE]);
 
-    game.move.select(moveToUse);
+    game.move.use(MoveId.ABSORB);
 
-    await game.phaseInterceptor.to(TurnEndPhase);
+    await game.toEndOfTurn();
 
     const mockedDmg = getMockedMoveDamage(
-      game.scene.getEnemyPokemon()!,
-      game.scene.getPlayerPokemon()!,
-      allMoves[moveToUse],
+      game.field.getEnemyPokemon(),
+      game.field.getPlayerPokemon(),
+      allMoves[MoveId.ABSORB],
     );
 
-    expect(mockedDmg).toBe(allMoves[moveToUse].power * singleBattleMultiplier);
+    expect(mockedDmg).toBe(allMoves[MoveId.ABSORB].power * singleBattleMultiplier);
   });
 
   it("reduces damage of special attacks by a third in a double battle", async () => {
     game.override.battleStyle("double");
-
-    const moveToUse = MoveId.DAZZLING_GLEAM;
-    await game.classicMode.startBattle([SpeciesId.SHUCKLE, SpeciesId.SHUCKLE]);
-
-    game.move.select(moveToUse);
-    game.move.select(moveToUse, 1);
-
-    await game.phaseInterceptor.to(TurnEndPhase);
-    const mockedDmg = getMockedMoveDamage(
-      game.scene.getEnemyPokemon()!,
-      game.scene.getPlayerPokemon()!,
-      allMoves[moveToUse],
-    );
-
-    expect(mockedDmg).toBe(allMoves[moveToUse].power * doubleBattleMultiplier);
-  });
-
-  it("does not affect physical critical hits", async () => {
-    game.override.moveset([MoveId.WICKED_BLOW]);
-    const moveToUse = MoveId.WICKED_BLOW;
     await game.classicMode.startBattle([SpeciesId.SHUCKLE]);
 
-    game.move.select(moveToUse);
-    await game.phaseInterceptor.to(TurnEndPhase);
-
+    game.move.use(MoveId.ABSORB);
+    await game.toEndOfTurn();
     const mockedDmg = getMockedMoveDamage(
-      game.scene.getEnemyPokemon()!,
-      game.scene.getPlayerPokemon()!,
-      allMoves[moveToUse],
+      game.field.getEnemyPokemon(),
+      game.field.getPlayerPokemon(),
+      allMoves[MoveId.ABSORB],
     );
-    expect(mockedDmg).toBe(allMoves[moveToUse].power);
+
+    expect(mockedDmg).toBe(allMoves[MoveId.ABSORB].power * doubleBattleMultiplier);
   });
 
   it("does not affect critical hits", async () => {
-    game.override.moveset([MoveId.FROST_BREATH]);
-    const moveToUse = MoveId.FROST_BREATH;
-    vi.spyOn(allMoves[MoveId.FROST_BREATH], "accuracy", "get").mockReturnValue(100);
     await game.classicMode.startBattle([SpeciesId.SHUCKLE]);
 
-    game.move.select(moveToUse);
-    await game.phaseInterceptor.to(TurnEndPhase);
+    game.move.use(MoveId.WICKED_BLOW);
+    await game.toEndOfTurn();
 
     const mockedDmg = getMockedMoveDamage(
-      game.scene.getEnemyPokemon()!,
-      game.scene.getPlayerPokemon()!,
-      allMoves[moveToUse],
+      game.field.getEnemyPokemon(),
+      game.field.getPlayerPokemon(),
+      allMoves[MoveId.WICKED_BLOW],
     );
-    expect(mockedDmg).toBe(allMoves[moveToUse].power);
+    expect(mockedDmg).toBe(allMoves[MoveId.WICKED_BLOW].power);
   });
 });
 
diff --git a/test/moves/baddy_bad.test.ts b/test/moves/baddy_bad.test.ts
index ffdf9f0309c..8709b6d3eac 100644
--- a/test/moves/baddy_bad.test.ts
+++ b/test/moves/baddy_bad.test.ts
@@ -33,7 +33,7 @@ describe("Moves - Baddy Bad", () => {
     game.override.enemyMoveset(MoveId.PROTECT);
     await game.classicMode.startBattle([SpeciesId.FEEBAS]);
 
-    game.move.select(MoveId.BADDY_BAD);
+    game.move.use(MoveId.BADDY_BAD);
     await game.phaseInterceptor.to("BerryPhase");
 
     expect(game.scene.arena.tags.length).toBe(0);
diff --git a/test/moves/gastro_acid.test.ts b/test/moves/gastro_acid.test.ts
index 39167987809..baa4a4b863a 100644
--- a/test/moves/gastro_acid.test.ts
+++ b/test/moves/gastro_acid.test.ts
@@ -100,12 +100,12 @@ describe("Moves - Gastro Acid", () => {
     await game.toNextTurn();
     expect(enemyPokemon.summonData.abilitySuppressed).toBe(true);
 
-    game.move.select(MoveId.WATER_GUN);
+    game.move.use(MoveId.WATER_GUN);
     await game.toNextTurn();
     // water gun should've dealt damage due to suppressed Water Absorb
     expect(enemyPokemon.hp).toBe(enemyPokemon.getMaxHp());
 
-    game.move.select(MoveId.SPORE);
+    game.move.use(MoveId.SPORE);
     await game.toEndOfTurn();
 
     // Comatose should block stauts effect
diff --git a/test/moves/instruct.test.ts b/test/moves/instruct.test.ts
index d12859301b6..19b7a941de7 100644
--- a/test/moves/instruct.test.ts
+++ b/test/moves/instruct.test.ts
@@ -349,7 +349,7 @@ describe("Moves - Instruct", () => {
       useMode: MoveUseMode.NORMAL,
     });
 
-    game.move.select(MoveId.SPLASH);
+    game.move.use(MoveId.SPLASH);
     await game.setTurnOrder([BattlerIndex.ENEMY, BattlerIndex.PLAYER]);
     await game.toEndOfTurn();
     expect(game.field.getEnemyPokemon().getLastXMoves()[0].result).toBe(MoveResult.FAIL);
diff --git a/test/moves/reflect_type.test.ts b/test/moves/reflect_type.test.ts
index 0915069764c..e07c7b43ca4 100644
--- a/test/moves/reflect_type.test.ts
+++ b/test/moves/reflect_type.test.ts
@@ -30,30 +30,26 @@ describe("Moves - Reflect Type", () => {
   });
 
   it("will make the user Normal/Grass if targetting a typeless Pokemon affected by Forest's Curse", async () => {
-    game.override
-      .moveset([MoveId.FORESTS_CURSE, MoveId.REFLECT_TYPE])
-      .startingLevel(60)
-      .enemySpecies(SpeciesId.CHARMANDER)
-      .enemyMoveset([MoveId.BURN_UP, MoveId.SPLASH]);
+    game.override.startingLevel(60).enemySpecies(SpeciesId.CHARMANDER);
     await game.classicMode.startBattle([SpeciesId.FEEBAS]);
 
-    const playerPokemon = game.scene.getPlayerPokemon();
-    const enemyPokemon = game.scene.getEnemyPokemon();
+    const playerPokemon = game.field.getPlayerPokemon();
+    const enemyPokemon = game.field.getEnemyPokemon();
 
-    game.move.select(MoveId.SPLASH);
-    await game.move.selectEnemyMove(MoveId.BURN_UP);
+    game.move.use(MoveId.SPLASH);
+    await game.move.forceEnemyMove(MoveId.BURN_UP);
     await game.toNextTurn();
 
-    game.move.select(MoveId.FORESTS_CURSE);
-    await game.move.selectEnemyMove(MoveId.SPLASH);
+    game.move.use(MoveId.FORESTS_CURSE);
+    await game.move.forceEnemyMove(MoveId.SPLASH);
     await game.toNextTurn();
-    expect(enemyPokemon?.getTypes().includes(PokemonType.UNKNOWN)).toBe(true);
-    expect(enemyPokemon?.getTypes().includes(PokemonType.GRASS)).toBe(true);
+    expect(enemyPokemon.getTypes().includes(PokemonType.UNKNOWN)).toBe(true);
+    expect(enemyPokemon.getTypes().includes(PokemonType.GRASS)).toBe(true);
 
-    game.move.select(MoveId.REFLECT_TYPE);
-    await game.move.selectEnemyMove(MoveId.SPLASH);
+    game.move.use(MoveId.REFLECT_TYPE);
+    await game.move.forceEnemyMove(MoveId.SPLASH);
     await game.phaseInterceptor.to("TurnEndPhase");
-    expect(playerPokemon?.getTypes()[0]).toBe(PokemonType.NORMAL);
-    expect(playerPokemon?.getTypes().includes(PokemonType.GRASS)).toBe(true);
+    expect(playerPokemon.getTypes()[0]).toBe(PokemonType.NORMAL);
+    expect(playerPokemon.getTypes().includes(PokemonType.GRASS)).toBe(true);
   });
 });
diff --git a/test/moves/spikes.test.ts b/test/moves/spikes.test.ts
index 49492701d18..f6f603ef2c4 100644
--- a/test/moves/spikes.test.ts
+++ b/test/moves/spikes.test.ts
@@ -82,10 +82,10 @@ describe("Moves - Spikes", () => {
 
   it("should work when all targets fainted", async () => {
     game.override.enemySpecies(SpeciesId.DIGLETT).battleStyle("double").startingLevel(50);
-    await game.classicMode.startBattle([SpeciesId.RAYQUAZA, SpeciesId.ROWLET]);
+    await game.classicMode.startBattle([SpeciesId.RAYQUAZA]);
 
-    game.move.select(MoveId.EARTHQUAKE);
-    game.move.select(MoveId.SPIKES, 1);
+    game.move.use(MoveId.SPIKES);
+    await game.doKillOpponents();
     await game.phaseInterceptor.to("TurnEndPhase");
 
     expect(game.scene.arena.getTagOnSide(ArenaTrapTag, ArenaTagSide.ENEMY)).toBeDefined();
diff --git a/test/testUtils/gameManager.ts b/test/testUtils/gameManager.ts
index b9f499d4e0c..f4ba31499d4 100644
--- a/test/testUtils/gameManager.ts
+++ b/test/testUtils/gameManager.ts
@@ -201,9 +201,8 @@ export default class GameManager {
   /**
    * Helper function to run to the final boss encounter as it's a bit tricky due to extra dialogue
    * Also handles Major/Minor bosses from endless modes
-   * @param game - The game manager
-   * @param species
-   * @param mode
+   * @param species - Array of {@linkcode SpeciesId}s to start the final battle with.
+   * @param mode - The {@linkcode GameModes} to spawn the final boss encounter in.
    */
   async runToFinalBossEncounter(species: SpeciesId[], mode: GameModes) {
     console.log("===to final boss encounter===");
@@ -230,9 +229,9 @@ export default class GameManager {
 
   /**
    * Runs the game to a mystery encounter phase.
-   * @param encounterType if specified, will expect encounter to have been spawned
-   * @param species Optional array of species for party.
-   * @returns A promise that resolves when the EncounterPhase ends.
+   * @param encounterType - If specified, will expect encounter to be the given type.
+   * @param species - Optional array of species for party to start with.
+   * @returns A Promise that resolves when the EncounterPhase ends.
    */
   async runToMysteryEncounter(encounterType?: MysteryEncounterType, species?: SpeciesId[]) {
     if (!isNullOrUndefined(encounterType)) {
@@ -277,6 +276,7 @@ export default class GameManager {
    * Will trigger during the next {@linkcode SelectTargetPhase}
    * @param targetIndex - The {@linkcode BattlerIndex} of the attack target, or `undefined` for multi-target attacks
    * @param movePosition - The 0-indexed position of the move in the pokemon's moveset array
+   * @throws Immediately fails tests
    */
   selectTarget(movePosition: number, targetIndex?: BattlerIndex) {
     this.onNextPrompt(
@@ -292,7 +292,7 @@ export default class GameManager {
           handler.setCursor(targetIndex !== undefined ? targetIndex : BattlerIndex.ENEMY);
         }
         if (move.isMultiTarget() && targetIndex !== undefined) {
-          throw new Error(`targetIndex was passed to selectMove() but move ("${move.name}") is not targetted`);
+          expect.fail(`targetIndex was passed to selectMove() but move ("${move.name}") is not targetted`);
         }
         handler.processInput(Button.ACTION);
       },
diff --git a/test/testUtils/gameManagerUtils.ts b/test/testUtils/gameManagerUtils.ts
index 57fd9b91d26..2e1714c90ad 100644
--- a/test/testUtils/gameManagerUtils.ts
+++ b/test/testUtils/gameManagerUtils.ts
@@ -10,7 +10,7 @@ import { getGameMode } from "#app/game-mode";
 import { GameModes } from "#enums/game-modes";
 import type { StarterMoveset } from "#app/system/game-data";
 import type { Starter } from "#app/ui/starter-select-ui-handler";
-import { MoveId } from "#enums/move-id";
+import type { MoveId } from "#enums/move-id";
 import type { SpeciesId } from "#enums/species-id";
 
 /** Function to convert Blob to string */
@@ -98,15 +98,6 @@ export function waitUntil(truth): Promise<unknown> {
   });
 }
 
-/** Get the index of `move` from the moveset of the pokemon on the player's field at location `pokemonIndex`. */
-export function getMovePosition(scene: BattleScene, pokemonIndex: 0 | 1, move: MoveId): number {
-  const playerPokemon = scene.getPlayerField()[pokemonIndex];
-  const moveSet = playerPokemon.getMoveset();
-  const index = moveSet.findIndex(m => m.moveId === move && m.ppUsed < m.getMovePp());
-  console.log(`Move position for ${MoveId[move]} (=${move}):`, index);
-  return index;
-}
-
 /**
  * Useful for populating party, wave index, etc. without having to spin up and run through an entire EncounterPhase
  */
diff --git a/test/testUtils/helpers/moveHelper.ts b/test/testUtils/helpers/moveHelper.ts
index ed1441a6a2f..b7b0fefa4db 100644
--- a/test/testUtils/helpers/moveHelper.ts
+++ b/test/testUtils/helpers/moveHelper.ts
@@ -1,4 +1,4 @@
-import type { BattlerIndex } from "#enums/battler-index";
+import { BattlerIndex } from "#enums/battler-index";
 import { getMoveTargets } from "#app/data/moves/move-utils";
 import type Pokemon from "#app/field/pokemon";
 import { PokemonMove } from "#app/data/moves/pokemon-move";
@@ -9,14 +9,13 @@ import { MoveEffectPhase } from "#app/phases/move-effect-phase";
 import { Command } from "#enums/command";
 import { MoveId } from "#enums/move-id";
 import { UiMode } from "#enums/ui-mode";
-import { getMovePosition } from "#test/testUtils/gameManagerUtils";
 import { GameManagerHelper } from "#test/testUtils/helpers/gameManagerHelper";
-import { vi } from "vitest";
-import { coerceArray } from "#app/utils/common";
+import { expect, vi } from "vitest";
+import { coerceArray, toReadableString } from "#app/utils/common";
 import { MoveUseMode } from "#enums/move-use-mode";
 
 /**
- * Helper to handle a Pokemon's move
+ * Helper to handle using a Pokemon's moves.
  */
 export class MoveHelper extends GameManagerHelper {
   /**
@@ -49,13 +48,31 @@ export class MoveHelper extends GameManagerHelper {
   }
 
   /**
-   * Select the move to be used by the given Pokemon(-index). Triggers during the next {@linkcode CommandPhase}
-   * @param move - the move to use
-   * @param pkmIndex - the pokemon index. Relevant for double-battles only (defaults to 0)
-   * @param targetIndex - The {@linkcode BattlerIndex} of the Pokemon to target for single-target moves, or `null` if a manual call to `selectTarget()` is required
+   * Select a move _already in the player's moveset_ to be used during the next {@linkcode CommandPhase}.
+   * @param move - The {@linkcode MoveId} to use.
+   * @param pkmIndex - The {@linkcode BattlerIndex} of the player Pokemon using the move. Relevant for double battles only and defaults to {@linkcode BattlerIndex.PLAYER} if not specified.
+   * @param targetIndex - The {@linkcode BattlerIndex} of the Pokemon to target for single-target moves; should be omitted for multi-target moves.
+   * If set to `null`, will forgo normal target selection entirely (useful for UI tests).
+   * @remarks
+   * Will fail the current test if the move being selected is not in the user's moveset.
    */
-  public select(move: MoveId, pkmIndex: 0 | 1 = 0, targetIndex?: BattlerIndex | null) {
-    const movePosition = getMovePosition(this.game.scene, pkmIndex, move);
+  public select(
+    move: MoveId,
+    pkmIndex: BattlerIndex.PLAYER | BattlerIndex.PLAYER_2 = BattlerIndex.PLAYER,
+    targetIndex?: BattlerIndex | null,
+  ) {
+    const movePosition = this.getMovePosition(pkmIndex, move);
+    if (movePosition === -1) {
+      expect.fail(
+        `MoveHelper.selectWithTera called with move '${toReadableString(MoveId[move])}' not in moveset!
+Battler Index: ${toReadableString(BattlerIndex[pkmIndex])};
+Moveset: [${this.game.scene
+          .getPlayerParty()
+          [pkmIndex].getMoveset()
+          .map(pm => toReadableString(MoveId[pm.moveId]))
+          .join(", ")}]`,
+      );
+    }
 
     this.game.onNextPrompt("CommandPhase", UiMode.COMMAND, () => {
       this.game.scene.ui.setMode(
@@ -77,14 +94,30 @@ export class MoveHelper extends GameManagerHelper {
   }
 
   /**
-   * Select the move to be used by the given Pokemon(-index), **which will also terastallize on this turn**.
-   * Triggers during the next {@linkcode CommandPhase}
-   * @param move - the move to use
-   * @param pkmIndex - the pokemon index. Relevant for double-battles only (defaults to 0)
-   * @param targetIndex - The {@linkcode BattlerIndex} of the Pokemon to target for single-target moves, or `null` if a manual call to `selectTarget()` is required
+   * Select a move _already in the player's moveset_ to be used during the next {@linkcode CommandPhase}, **which will also terastallize on this turn**.
+   * @param move - The {@linkcode MoveId} to use.
+   * @param pkmIndex - The {@linkcode BattlerIndex} of the player Pokemon using the move. Relevant for double battles only and defaults to {@linkcode BattlerIndex.PLAYER} if not specified.
+   * @param targetIndex - The {@linkcode BattlerIndex} of the Pokemon to target for single-target moves; should be omitted for multi-target moves.
+   * If set to `null`, will forgo normal target selection entirely (useful for UI tests)
    */
-  public selectWithTera(move: MoveId, pkmIndex: 0 | 1 = 0, targetIndex?: BattlerIndex | null) {
-    const movePosition = getMovePosition(this.game.scene, pkmIndex, move);
+  public selectWithTera(
+    move: MoveId,
+    pkmIndex: BattlerIndex.PLAYER | BattlerIndex.PLAYER_2 = BattlerIndex.PLAYER,
+    targetIndex?: BattlerIndex | null,
+  ) {
+    const movePosition = this.getMovePosition(pkmIndex, move);
+    if (movePosition === -1) {
+      expect.fail(
+        `MoveHelper.selectWithTera called with move '${toReadableString(MoveId[move])}' not in moveset!
+Battler Index: ${toReadableString(BattlerIndex[pkmIndex])};
+Moveset: [${this.game.scene
+          .getPlayerParty()
+          [pkmIndex].getMoveset()
+          .map(pm => toReadableString(MoveId[pm.moveId]))
+          .join(", ")}]`,
+      );
+    }
+
     this.game.scene.getPlayerParty()[pkmIndex].isTerastallized = false;
 
     this.game.onNextPrompt("CommandPhase", UiMode.COMMAND, () => {
@@ -107,6 +140,15 @@ export class MoveHelper extends GameManagerHelper {
     }
   }
 
+  /** Helper function to get the index of the selected move in the selected part member's moveset. */
+  private getMovePosition(pokemonIndex: BattlerIndex.PLAYER | BattlerIndex.PLAYER_2, move: MoveId): number {
+    const playerPokemon = this.game.scene.getPlayerField()[pokemonIndex];
+    const moveset = playerPokemon.getMoveset();
+    const index = moveset.findIndex(m => m.moveId === move && m.ppUsed < m.getMovePp());
+    console.log(`Move position for ${MoveId[move]} (=${move}):`, index);
+    return index;
+  }
+
   /**
    * Modifies a player pokemon's moveset to contain only the selected move and then
    * selects it to be used during the next {@linkcode CommandPhase}.
@@ -116,14 +158,19 @@ export class MoveHelper extends GameManagerHelper {
    * Note: If you need to check for changes in the player's moveset as part of the test, it may be
    * best to use {@linkcode changeMoveset} and {@linkcode select} instead.
    * @param moveId - the move to use
-   * @param pkmIndex - the pokemon index. Relevant for double-battles only (defaults to 0)
-   * @param targetIndex - (optional) The {@linkcode BattlerIndex} of the Pokemon to target for single-target moves, or `null` if a manual call to `selectTarget()` is required
-   * @param useTera - If `true`, the Pokemon also chooses to Terastallize. This does not require a Tera Orb. Default: `false`.
+   * @param pkmIndex - The {@linkcode BattlerIndex} of the player Pokemon using the move. Relevant for double battles only and defaults to {@linkcode BattlerIndex.PLAYER} if not specified.
+   * @param targetIndex - The {@linkcode BattlerIndex} of the Pokemon to target for single-target moves; should be omitted for multi-target moves.
+   * @param useTera - If `true`, the Pokemon will attempt to Terastallize even without a Tera Orb; default `false`.
    */
-  public use(moveId: MoveId, pkmIndex: 0 | 1 = 0, targetIndex?: BattlerIndex | null, useTera = false): void {
+  public use(
+    moveId: MoveId,
+    pkmIndex: BattlerIndex.PLAYER | BattlerIndex.PLAYER_2 = BattlerIndex.PLAYER,
+    targetIndex?: BattlerIndex,
+    useTera = false,
+  ): void {
     if ([Overrides.MOVESET_OVERRIDE].flat().length > 0) {
       vi.spyOn(Overrides, "MOVESET_OVERRIDE", "get").mockReturnValue([]);
-      console.warn("Warning: `use` overwrites the Pokemon's moveset and disables the player moveset override!");
+      console.warn("Warning: `MoveHelper.use` overwriting player pokemon moveset and disabling moveset override!");
     }
 
     const pokemon = this.game.scene.getPlayerField()[pkmIndex];