diff --git a/src/battle-scene.ts b/src/battle-scene.ts
index b73a4e30357..d2a236ba728 100644
--- a/src/battle-scene.ts
+++ b/src/battle-scene.ts
@@ -33,7 +33,6 @@ import {
   PokemonFormChangeItemModifier,
   PokemonHeldItemModifier,
   PokemonHpRestoreModifier,
-  PokemonIncrementingStatModifier,
   RememberMoveModifier,
 } from "./modifier/modifier";
 import { PokeballType } from "#enums/pokeball";
@@ -169,6 +168,7 @@ import { ModifierBar } from "./modifier/modifier-bar";
 import { applyHeldItems } from "./items/all-held-items";
 import { ITEM_EFFECT } from "./items/held-item";
 import { PhaseManager } from "./phase-manager";
+import { HeldItemId } from "#enums/held-item-id";
 
 const DEBUG_RNG = false;
 
@@ -3019,12 +3019,6 @@ export default class BattleScene extends SceneBase {
     const modifierIndex = modifiers.indexOf(modifier);
     if (modifierIndex > -1) {
       modifiers.splice(modifierIndex, 1);
-      if (modifier instanceof PokemonFormChangeItemModifier) {
-        const pokemon = this.getPokemonById(modifier.pokemonId);
-        if (pokemon) {
-          modifier.apply(pokemon, false);
-        }
-      }
       return true;
     }
 
@@ -3177,6 +3171,7 @@ export default class BattleScene extends SceneBase {
       } else {
         matchingFormChange = matchingFormChangeOpts[0];
       }
+
       if (matchingFormChange) {
         let phase: Phase;
         if (pokemon.isPlayer() && !matchingFormChange.quiet) {
@@ -3374,9 +3369,9 @@ export default class BattleScene extends SceneBase {
         const participated = participantIds.has(pId);
         if (participated && pokemonDefeated) {
           partyMember.addFriendship(FRIENDSHIP_GAIN_FROM_BATTLE);
-          const machoBraceModifier = partyMember.getHeldItems().find(m => m instanceof PokemonIncrementingStatModifier);
-          if (machoBraceModifier && machoBraceModifier.stackCount < machoBraceModifier.getMaxStackCount()) {
-            machoBraceModifier.stackCount++;
+          const hasMachoBrace = partyMember.heldItemManager.hasItem(HeldItemId.MACHO_BRACE);
+          if (hasMachoBrace) {
+            partyMember.heldItemManager.add(HeldItemId.MACHO_BRACE);
             this.updateModifiers(true, true);
             partyMember.updateInfo();
           }
diff --git a/src/field/pokemon-held-item-manager.ts b/src/field/pokemon-held-item-manager.ts
index 538eabef873..71385cda254 100644
--- a/src/field/pokemon-held-item-manager.ts
+++ b/src/field/pokemon-held-item-manager.ts
@@ -59,10 +59,10 @@ export class PokemonItemManager {
     }
   }
 
-  remove(itemType: HeldItemId, removeStack = 1) {
+  remove(itemType: HeldItemId, removeStack = 1, all = false) {
     this.heldItems[itemType].stack -= removeStack;
 
-    if (this.heldItems[itemType].stack <= 0) {
+    if (all || this.heldItems[itemType].stack <= 0) {
       delete this.heldItems[itemType];
     }
   }
diff --git a/src/field/pokemon.ts b/src/field/pokemon.ts
index 6f28d55d66b..1acbd37a94a 100644
--- a/src/field/pokemon.ts
+++ b/src/field/pokemon.ts
@@ -242,6 +242,7 @@ import { loadMoveAnimations } from "#app/sprites/pokemon-asset-loader";
 import { PokemonItemManager } from "./pokemon-held-item-manager";
 import { applyHeldItems } from "#app/items/all-held-items";
 import { ITEM_EFFECT } from "#app/items/held-item";
+import type { HeldItemId } from "#enums/held-item-id";
 
 export enum LearnMoveSituation {
   MISC,
@@ -5462,15 +5463,13 @@ export default abstract class Pokemon extends Phaser.GameObjects.Container {
    * @param forBattle If `false`, do not trigger in-battle effects (such as Unburden) from losing the item. For example, set this to `false` if the Pokemon is giving away the held item for a Mystery Encounter. Default is `true`.
    * @returns `true` if the item was removed successfully, `false` otherwise.
    */
-  public loseHeldItem(heldItem: PokemonHeldItemModifier, forBattle = true): boolean {
-    if (heldItem.pokemonId !== -1 && heldItem.pokemonId !== this.id) {
+  public loseHeldItem(heldItemId: HeldItemId, forBattle = true): boolean {
+    if (!this.heldItemManager.hasItem(heldItemId)) {
       return false;
     }
 
-    heldItem.stackCount--;
-    if (heldItem.stackCount <= 0) {
-      globalScene.removeModifier(heldItem, this.isEnemy());
-    }
+    this.heldItemManager.remove(heldItemId);
+
     if (forBattle) {
       applyPostItemLostAbAttrs(PostItemLostAbAttr, this, false);
     }