diff --git a/PkmnLib.Dynamic/BattleFlow/MoveTurnExecutor.cs b/PkmnLib.Dynamic/BattleFlow/MoveTurnExecutor.cs
index 29826f2..303373a 100644
--- a/PkmnLib.Dynamic/BattleFlow/MoveTurnExecutor.cs
+++ b/PkmnLib.Dynamic/BattleFlow/MoveTurnExecutor.cs
@@ -123,6 +123,8 @@ public static class MoveTurnExecutor
         executingMove.RunScriptHookInterface<IScriptOnAfterMove>(x => x.OnAfterMove(executingMove));
     }
 
+    private static readonly ThreadLocal<List<TypeIdentifier>> TypeListCache = new(() => []);
+
     private static void ExecuteMoveChoiceForTarget(IBattle battle, IExecutingMove executingMove, IPokemon target)
     {
         var failed = false;
@@ -173,7 +175,11 @@ public static class MoveTurnExecutor
 
             hitData.Type = hitType;
 
-            var types = new List<TypeIdentifier>(target.Types);
+            // We re-use the TypeListCache to avoid allocating a new list every time.
+            var types = TypeListCache.Value;
+            types.Clear();
+            types.AddRange(target.Types);
+
             executingMove.RunScriptHook(x => x.ChangeTypesForMove(executingMove, target, hitIndex, types));
             target.RunScriptHook(x => x.ChangeTypesForIncomingMove(executingMove, target, hitIndex, types));