diff --git a/src/ScriptResolving/WASM/InterfaceMethods/Library/WASMAbilityRegistry.cpp b/src/ScriptResolving/WASM/InterfaceMethods/Library/WASMAbilityRegistry.cpp
new file mode 100644
index 0000000..0b01454
--- /dev/null
+++ b/src/ScriptResolving/WASM/InterfaceMethods/Library/WASMAbilityRegistry.cpp
@@ -0,0 +1,13 @@
+#include "WASMAbilityRegistry.hpp"
+#include "../WASMHelperFile.hpp"
+#include "wasm.h"
+
+using namespace CreatureLib::Library;
+using namespace PkmnLib::Library;
+
+void WASMAbilityRegistry::Register(ArbUt::Dictionary<std::string, wasm_func_t*>& externs,
+                                   WebAssemblyScriptResolver* resolver) {
+    REGISTER_GETTER("ability_get_name", Talent, GetName, resolver);
+    REGISTER_GETTER("ability_get_effect", Talent, GetEffect, resolver);
+    REGISTER_GETTER("ability_get_parameters", Talent, GetParameters, resolver);
+}
diff --git a/src/ScriptResolving/WASM/InterfaceMethods/Library/WASMAbilityRegistry.hpp b/src/ScriptResolving/WASM/InterfaceMethods/Library/WASMAbilityRegistry.hpp
new file mode 100644
index 0000000..75e4837
--- /dev/null
+++ b/src/ScriptResolving/WASM/InterfaceMethods/Library/WASMAbilityRegistry.hpp
@@ -0,0 +1,10 @@
+#ifndef PKMNLIB_WASMABILITYREGISTRY_HPP
+#define PKMNLIB_WASMABILITYREGISTRY_HPP
+#include "../../WebAssemblyScriptResolver.hpp"
+
+class WASMAbilityRegistry {
+public:
+    static void Register(ArbUt::Dictionary<std::string, wasm_func_t*>& externs, WebAssemblyScriptResolver* resolver);
+};
+
+#endif // PKMNLIB_WASMABILITYREGISTRY_HPP
diff --git a/src/ScriptResolving/WASM/InterfaceMethods/Library/WASMEffectParameter.cpp b/src/ScriptResolving/WASM/InterfaceMethods/Library/WASMEffectParameter.cpp
new file mode 100644
index 0000000..612e105
--- /dev/null
+++ b/src/ScriptResolving/WASM/InterfaceMethods/Library/WASMEffectParameter.cpp
@@ -0,0 +1,16 @@
+#include "WASMEffectParameter.hpp"
+#include "../../../../Battling/Library/BattleLibrary.hpp"
+#include "../../WebAssemblyScriptResolver.hpp"
+#include "../WASMHelperFile.hpp"
+#include "wasm.h"
+
+using namespace CreatureLib::Library;
+
+void WASMEffectParameter::Register(ArbUt::Dictionary<std::string, wasm_func_t*>& externs,
+                                   WebAssemblyScriptResolver* resolver) {
+    REGISTER_GETTER("effect_parameter_get_type", EffectParameter, GetType, resolver)
+    REGISTER_GETTER("effect_parameter_as_bool", EffectParameter, AsBool, resolver)
+    REGISTER_GETTER("effect_parameter_as_int", EffectParameter, AsInt, resolver)
+    REGISTER_GETTER("effect_parameter_as_float", EffectParameter, AsFloat, resolver)
+    REGISTER_GETTER("effect_parameter_as_string", EffectParameter, AsString, resolver)
+}
diff --git a/src/ScriptResolving/WASM/InterfaceMethods/Library/WASMEffectParameter.hpp b/src/ScriptResolving/WASM/InterfaceMethods/Library/WASMEffectParameter.hpp
new file mode 100644
index 0000000..2793ed0
--- /dev/null
+++ b/src/ScriptResolving/WASM/InterfaceMethods/Library/WASMEffectParameter.hpp
@@ -0,0 +1,10 @@
+#ifndef PKMNLIB_WASMEFFECTPARAMETER_HPP
+#define PKMNLIB_WASMEFFECTPARAMETER_HPP
+#include "../../WebAssemblyScriptResolver.hpp"
+
+class WASMEffectParameter {
+public:
+    static void Register(ArbUt::Dictionary<std::string, wasm_func_t*>& externs, WebAssemblyScriptResolver* resolver);
+};
+
+#endif // PKMNLIB_WASMEFFECTPARAMETER_HPP
diff --git a/src/ScriptResolving/WASM/InterfaceMethods/Library/WASMFormeRegistry.hpp b/src/ScriptResolving/WASM/InterfaceMethods/Library/WASMFormeRegistry.hpp
index 9dd74cc..3ccdd55 100644
--- a/src/ScriptResolving/WASM/InterfaceMethods/Library/WASMFormeRegistry.hpp
+++ b/src/ScriptResolving/WASM/InterfaceMethods/Library/WASMFormeRegistry.hpp
@@ -7,8 +7,7 @@ class WebAssemblyScriptResolver;
 
 class WASMFormeRegistry {
 public:
-    static void Register(ArbUt::Dictionary<std::string, wasm_func_t*>& externs,
-                         WebAssemblyScriptResolver* resolver);
+    static void Register(ArbUt::Dictionary<std::string, wasm_func_t*>& externs, WebAssemblyScriptResolver* resolver);
 };
 
 #endif // PKMNLIB_WASMFORMEREGISTRY_HPP
diff --git a/src/ScriptResolving/WASM/InterfaceMethods/TypeRegistry.hpp b/src/ScriptResolving/WASM/InterfaceMethods/TypeRegistry.hpp
index c27fdd9..664c563 100644
--- a/src/ScriptResolving/WASM/InterfaceMethods/TypeRegistry.hpp
+++ b/src/ScriptResolving/WASM/InterfaceMethods/TypeRegistry.hpp
@@ -5,11 +5,14 @@
 #include "../WebAssemblyScriptResolver.hpp"
 #include "Arbutils/Collections/Dictionary.hpp"
 #include "Library/LibraryMethods.hpp"
+#include "Library/WASMAbilityRegistry.hpp"
+#include "Library/WASMEffectParameter.hpp"
+#include "Library/WASMFormeRegistry.hpp"
 #include "Library/WASMItemRegistry.hpp"
 #include "Library/WASMMoveDataRegistry.hpp"
 #include "Library/WASMSpeciesRegistry.hpp"
-#include "Library/WASMFormeRegistry.hpp"
 #include "WASMCoreMethods.hpp"
+#include "WASMListRegistry.hpp"
 #include "WASMStringView.hpp"
 
 class TypeRegistry {
@@ -17,12 +20,15 @@ public:
     static void Register(ArbUt::Dictionary<std::string, wasm_func_t*>& externs, WebAssemblyScriptResolver* resolver) {
         WASMCoreMethods::Register(externs, resolver);
         WASMStringView::Register(externs, resolver);
+        WASMListRegistry::Register(externs, resolver);
+
         LibraryMethods::Register(externs, resolver);
+        WASMEffectParameter::Register(externs, resolver);
         WASMMoveDataRegistry::Register(externs, resolver);
         WASMItemRegistry::Register(externs, resolver);
         WASMSpeciesRegistry::Register(externs, resolver);
         WASMFormeRegistry::Register(externs, resolver);
-
+        WASMAbilityRegistry::Register(externs, resolver);
     }
 };
 
diff --git a/src/ScriptResolving/WASM/InterfaceMethods/WASMHelperFile.hpp b/src/ScriptResolving/WASM/InterfaceMethods/WASMHelperFile.hpp
index a6f2cd1..95af186 100644
--- a/src/ScriptResolving/WASM/InterfaceMethods/WASMHelperFile.hpp
+++ b/src/ScriptResolving/WASM/InterfaceMethods/WASMHelperFile.hpp
@@ -1,6 +1,7 @@
 #ifndef PKMNLIB_HELPERFILE_H
 #define PKMNLIB_HELPERFILE_H
 #include <Arbutils/Memory/Memory.hpp>
+#include <cxxabi.h>
 #include <memory>
 #include <sstream>
 #include <type_traits>
@@ -122,8 +123,10 @@ private:
             }
         } else if constexpr (std::is_same<T, const ArbUt::StringView&>()) {
             return wasm_valtype_new_i64();
+        } else if constexpr (is_specialization<T, ArbUt::List>()) {
+            return wasm_valtype_new_i64();
         }
-        THROW("Unhandled value type: ", std::string(typeid(T).name()));
+        THROW("Unhandled value type: ", std::string(abi::__cxa_demangle(typeid(T).name(), 0, 0, 0)));
     }
 
     template <typename T> inline static wasm_val_t ToVal(const T& val) {
@@ -150,6 +153,9 @@ private:
         } else if constexpr (std::is_same<T, const ArbUt::StringView&>()) {
             auto v = &val;
             return WASM_I64_VAL(reinterpret_cast<i64>(v));
+        } else if constexpr (is_specialization<T, ArbUt::List>()) {
+            auto v = &val;
+            return WASM_I64_VAL(reinterpret_cast<i64>(v));
         }
         THROW("Unhandled value type: ", typeid(T).name());
     }
diff --git a/src/ScriptResolving/WASM/InterfaceMethods/WASMListRegistry.cpp b/src/ScriptResolving/WASM/InterfaceMethods/WASMListRegistry.cpp
new file mode 100644
index 0000000..eab5e08
--- /dev/null
+++ b/src/ScriptResolving/WASM/InterfaceMethods/WASMListRegistry.cpp
@@ -0,0 +1,20 @@
+#include "WASMListRegistry.hpp"
+#include "WASMHelperFile.hpp"
+
+wasm_func_t* List_GetLength(WebAssemblyScriptResolver* resolver) {
+    return WasmHelpers::CreateFunc<size_t, const ArbUt::List<void*>*>(
+        resolver, {[](WebAssemblyScriptResolver*, const ArbUt::List<void*>* list) -> size_t { return list->Count(); }});
+}
+
+wasm_func_t* List_GetValue(WebAssemblyScriptResolver* resolver) {
+    return WasmHelpers::CreateFunc<void*, const ArbUt::List<void*>*, size_t>(
+        resolver, {[](WebAssemblyScriptResolver*, const ArbUt::List<void*>* list, size_t index) -> void* {
+            return list->At(index);
+        }});
+}
+
+void WASMListRegistry::Register(ArbUt::Dictionary<std::string, wasm_func_t*>& externs,
+                                WebAssemblyScriptResolver* resolver) {
+    externs.Insert("list_get_length", List_GetLength(resolver));
+    externs.Insert("list_get_at", List_GetValue(resolver));
+}
diff --git a/src/ScriptResolving/WASM/InterfaceMethods/WASMListRegistry.hpp b/src/ScriptResolving/WASM/InterfaceMethods/WASMListRegistry.hpp
new file mode 100644
index 0000000..b327356
--- /dev/null
+++ b/src/ScriptResolving/WASM/InterfaceMethods/WASMListRegistry.hpp
@@ -0,0 +1,10 @@
+#ifndef PKMNLIB_WASMLISTREGISTRY_HPP
+#define PKMNLIB_WASMLISTREGISTRY_HPP
+#include "../WebAssemblyScriptResolver.hpp"
+
+class WASMListRegistry {
+public:
+    static void Register(ArbUt::Dictionary<std::string, wasm_func_t*>& externs, WebAssemblyScriptResolver* resolver);
+};
+
+#endif // PKMNLIB_WASMLISTREGISTRY_HPP
diff --git a/src/ScriptResolving/WASM/InterfaceMethods/WASMStringView.cpp b/src/ScriptResolving/WASM/InterfaceMethods/WASMStringView.cpp
index 4628c17..e0fcab6 100644
--- a/src/ScriptResolving/WASM/InterfaceMethods/WASMStringView.cpp
+++ b/src/ScriptResolving/WASM/InterfaceMethods/WASMStringView.cpp
@@ -23,6 +23,6 @@ wasm_func_t* ConstString_GetStr(WebAssemblyScriptResolver* resolver) {
 
 void WASMStringView::Register(ArbUt::Dictionary<std::string, wasm_func_t*>& externs,
                               WebAssemblyScriptResolver* resolver) {
-    externs.Insert("arbutils_const_string_get_hash", ConstString_GetHash(resolver));
-    externs.Insert("arbutils_const_string_get_str", ConstString_GetStr(resolver));
+    externs.Insert("const_string_get_hash", ConstString_GetHash(resolver));
+    externs.Insert("const_string_get_str", ConstString_GetStr(resolver));
 }
diff --git a/src/ScriptResolving/WASM/InterfaceMethods/pkmn_lib.wit b/src/ScriptResolving/WASM/InterfaceMethods/pkmn_lib_host.wit
similarity index 93%
rename from src/ScriptResolving/WASM/InterfaceMethods/pkmn_lib.wit
rename to src/ScriptResolving/WASM/InterfaceMethods/pkmn_lib_host.wit
index a60bb5d..c17bea1 100644
--- a/src/ScriptResolving/WASM/InterfaceMethods/pkmn_lib.wit
+++ b/src/ScriptResolving/WASM/InterfaceMethods/pkmn_lib_host.wit
@@ -1,4 +1,5 @@
-// This file documents the entire interface API currently used by the WebAssembly script resolver.
+// This file documents the entire Host interface API currently used by the WebAssembly script resolver, so the methods
+// that can be used from the client wasm.
 // Currently, we only define a bunch of functions, but in the future when interface types are actually implemented,
 // we'd like to implement those as well.
 
@@ -11,10 +12,15 @@ _print: function(i32 message_pointer, s32 message_length)
 
 // StringView class
 type const_string = u64;
-arbutils_const_string_get_hash: function(const_string ptr) -> u32
+const_string_get_hash: function(const_string ptr) -> u32
 // Returns a pointer to the WASM memory where the string can be found.
 // NOTE: This requires us to copy the string into WASM memory.
-arbutils_const_string_get_str: function(const_string ptr) -> s32
+const_string_get_str: function(const_string ptr) -> s32
+
+// List class
+type list = u64
+list_get_length: function(list) -> u64
+list_get_at: function(list, u64) -> u64
 
 // Library types
 type pokemon_library = u64
@@ -149,5 +155,4 @@ forme_get_hidden_ability_count: function(forme) -> u64
 forme_get_ability: function(forme, bool hidden, u8 index) -> ability
 forme_has_flag_by_hash: function(forme, u32) -> bool
 
-
-
+// Ability class
diff --git a/src/ScriptResolving/WASM/WebAssemblyBattleScript.cpp b/src/ScriptResolving/WASM/WebAssemblyBattleScript.cpp
index faa276e..63d14bf 100644
--- a/src/ScriptResolving/WASM/WebAssemblyBattleScript.cpp
+++ b/src/ScriptResolving/WASM/WebAssemblyBattleScript.cpp
@@ -22,15 +22,16 @@ WebAssemblyBattleScript::~WebAssemblyBattleScript() {
     if (!funcOpt.has_value()) {                                                                                        \
         return;                                                                                                        \
     }                                                                                                                  \
-    auto& func = funcOpt.value();                                                                                       \
+    auto& func = funcOpt.value();                                                                                      \
     parameter_setup;                                                                                                   \
     func.Call();
 
 void WebAssemblyBattleScript::OnInitialize(const CreatureLib::Battling::BattleLibrary* library,
-                                           const ArbUt::List<CreatureLib::Library::EffectParameter*>&) {
-    WASM_CALL(Initialize, "script_on_initialize", 2, 0, {
+                                           const ArbUt::List<CreatureLib::Library::EffectParameter*>& parameters) {
+    WASM_CALL(Initialize, "script_on_initialize", 3, 0, {
         func.Loadi32(0, _wasmPtr);
         func.LoadExternRef(1, library);
+        func.LoadExternRef(2, &parameters);
     });
 }
 
diff --git a/tests/ScriptTests/WASM/gen7_scripts_rs.wasm b/tests/ScriptTests/WASM/gen7_scripts_rs.wasm
index 7ef8ada..b4e0875 100755
Binary files a/tests/ScriptTests/WASM/gen7_scripts_rs.wasm and b/tests/ScriptTests/WASM/gen7_scripts_rs.wasm differ