diff --git a/src/ScriptResolving/AngelScript/AngelScriptItemUseScript.cpp b/src/ScriptResolving/AngelScript/AngelScriptItemUseScript.cpp
index 9a2bac4..ef19205 100644
--- a/src/ScriptResolving/AngelScript/AngelScriptItemUseScript.cpp
+++ b/src/ScriptResolving/AngelScript/AngelScriptItemUseScript.cpp
@@ -1,6 +1,31 @@
 #include "AngelScriptItemUseScript.hpp"
 #include "AngelScriptResolver.hpp"
 
+CScriptArray* AngelScriptItemUseScript::GetEffectParameters(const ArbUt::List<CreatureLib::Library::EffectParameter*>& ls) {
+    asITypeInfo* t = _resolver->GetBaseType("array<EffectParameter@>"_cnc);
+    CScriptArray* arr = CScriptArray::Create(t, ls.Count());
+    for (size_t i = 0; i < ls.Count(); i++) {
+        arr->SetValue(i, (void**)&ls[i]);
+    }
+    return arr;
+}
+
+void AngelScriptItemUseScript::OnInitialize(
+    const ArbUt::List<CreatureLib::Library::EffectParameter*>& parameters) {
+    if (__OnInitialize.Exists) {
+        CScriptArray* arr = nullptr;
+        AngelScriptUtils::AngelscriptFunctionCall(
+            __OnInitialize.Function, _resolver->GetContextPool(), _scriptObject, ""_cnc,
+            [&]([[maybe_unused]] asIScriptContext* ctx) {
+                arr = GetEffectParameters(parameters);
+                ctx->SetArgAddress(0, arr);
+            },
+            [&]([[maybe_unused]] asIScriptContext* ctx) {});
+
+        arr->Release();
+    }
+}
+
 bool AngelScriptItemUseScript::IsItemUsable() const {
     if (!__IsItemUsable.Exists) {
         return CreatureLib::Battling::ItemUseScript::IsItemUsable();
diff --git a/src/ScriptResolving/AngelScript/AngelScriptItemUseScript.hpp b/src/ScriptResolving/AngelScript/AngelScriptItemUseScript.hpp
index 72c70c9..c385389 100644
--- a/src/ScriptResolving/AngelScript/AngelScriptItemUseScript.hpp
+++ b/src/ScriptResolving/AngelScript/AngelScriptItemUseScript.hpp
@@ -2,21 +2,23 @@
 #define PKMNLIB_ANGELSCRIPTITEMUSESCRIPT_HPP
 
 #include <CreatureLib/Battling/ScriptHandling/ItemUseScript.hpp>
+#include "../../../extern/angelscript_addons/scriptarray/scriptarray.h"
 #include "AngelScriptFunctionCall.hpp"
 
 class AngelScriptResolver;
 
 class AngelScriptItemUseScript final : public CreatureLib::Battling::ItemUseScript {
 public:
-    AngelScriptItemUseScript(asIScriptObject* scriptObject, const AngelScriptResolver* resolver)
+    AngelScriptItemUseScript(asIScriptObject* scriptObject, AngelScriptResolver* resolver)
         : _scriptObject(scriptObject), _resolver(resolver) {}
 
-    ~AngelScriptItemUseScript(){
-        if (_scriptObject != nullptr){
+    ~AngelScriptItemUseScript() {
+        if (_scriptObject != nullptr) {
             _scriptObject->Release();
         }
     }
 
+    void OnInitialize(const ArbUt::List<CreatureLib::Library::EffectParameter*>& parameters) override;
     [[nodiscard]] bool IsItemUsable() const override;
     [[nodiscard]] bool IsCreatureUseItem() const override;
     bool IsUseValidForCreature(CreatureLib::Battling::Creature* creature) const override;
@@ -28,7 +30,7 @@ public:
 
 private:
     asIScriptObject* _scriptObject;
-    const AngelScriptResolver* _resolver;
+    AngelScriptResolver* _resolver;
 
     struct FunctionInfo {
         bool Exists = false;
@@ -43,8 +45,11 @@ private:
         return FunctionInfo{.Exists = true, .Function = val};
     }
 
+    CScriptArray* GetEffectParameters(const ArbUt::List<CreatureLib::Library::EffectParameter*>& ls);
+
 #define ITEM_USE_SCRIPT_HOOK_FUNCTION(name, decl) FunctionInfo __##name = Initialize(decl);
 
+    ITEM_USE_SCRIPT_HOOK_FUNCTION(OnInitialize, "void OnInitialize(const array<EffectParameter@> &in parameters)");
     ITEM_USE_SCRIPT_HOOK_FUNCTION(IsItemUsable, "bool IsItemUsable()");
     ITEM_USE_SCRIPT_HOOK_FUNCTION(IsPokemonUseItem, "bool IsPokemonUseItem()");
     ITEM_USE_SCRIPT_HOOK_FUNCTION(IsUseValidForPokemon, "bool IsUseValidForPokemon(Pokemon@ target)");
diff --git a/src/ScriptResolving/AngelScript/AngelScriptResolver.cpp b/src/ScriptResolving/AngelScript/AngelScriptResolver.cpp
index 88eab46..5a44c43 100644
--- a/src/ScriptResolving/AngelScript/AngelScriptResolver.cpp
+++ b/src/ScriptResolving/AngelScript/AngelScriptResolver.cpp
@@ -175,6 +175,7 @@ CreatureLib::Battling::ItemUseScript* AngelScriptResolver::LoadItemScript(const
     asIScriptObject* obj = *(asIScriptObject**)ctx->GetAddressOfReturnValue();
     obj->AddRef();
     auto scriptObject = new AngelScriptItemUseScript(obj, this);
+    scriptObject->OnInitialize(item->GetEffect()->GetParameters());
     _itemUseScripts.Insert(item, scriptObject);
     _contextPool->ReturnContextToPool(ctx);
     return scriptObject;
diff --git a/src/ScriptResolving/AngelScript/TypeRegistry/BasicScriptClass.cpp b/src/ScriptResolving/AngelScript/TypeRegistry/BasicScriptClass.cpp
index 6326a8d..23f4469 100644
--- a/src/ScriptResolving/AngelScript/TypeRegistry/BasicScriptClass.cpp
+++ b/src/ScriptResolving/AngelScript/TypeRegistry/BasicScriptClass.cpp
@@ -48,6 +48,7 @@ shared abstract class PkmnScript {
     Ensure(r >= 0);
     r = engine->GetModuleByIndex(0)->AddScriptSection("ItemUseScript", R"(
 shared abstract class ItemUseScript {
+    void OnInitialize(const array<EffectParameter@> &in parameters){};
     bool IsItemUsable() { return false; };
     bool IsPokemonUseItem() { return false; };
     bool IsUseValidForPokemon(Pokemon@ target) { return false; };