diff --git a/gradle.properties b/gradle.properties
index b63ffdb..25272d2 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -18,7 +18,7 @@ loader_version_range=[2,)
 mod_id=l2core
 mod_name=L2Core
 mod_license=LGPL-2.1
-mod_version=3.0.7-pre9
+mod_version=3.0.7+6
 mod_group_id=dev.xkmc
 mod_authors=lcy0x1
 mod_description=Core Library mod for all L2 mods
diff --git a/src/main/java/dev/xkmc/l2core/init/reg/ench/EnchHelper.java b/src/main/java/dev/xkmc/l2core/init/reg/ench/EnchHelper.java
new file mode 100644
index 0000000..3f75c97
--- /dev/null
+++ b/src/main/java/dev/xkmc/l2core/init/reg/ench/EnchHelper.java
@@ -0,0 +1,18 @@
+package dev.xkmc.l2core.init.reg.ench;
+
+import net.minecraft.core.registries.Registries;
+import net.minecraft.resources.ResourceKey;
+import net.minecraft.world.item.ItemStack;
+import net.minecraft.world.item.enchantment.Enchantment;
+import net.neoforged.neoforge.common.CommonHooks;
+
+public class EnchHelper {
+
+	public static int getLv(ItemStack stack, ResourceKey<Enchantment> key) {
+		var reg = CommonHooks.resolveLookup(Registries.ENCHANTMENT);
+		if (reg == null) return 0;
+		var holder = reg.get(key);
+		return holder.map(stack::getEnchantmentLevel).orElse(0);
+	}
+
+}
diff --git a/src/main/java/dev/xkmc/l2core/init/reg/ench/EnchReg.java b/src/main/java/dev/xkmc/l2core/init/reg/ench/EnchReg.java
index a7fd4bc..926ed97 100644
--- a/src/main/java/dev/xkmc/l2core/init/reg/ench/EnchReg.java
+++ b/src/main/java/dev/xkmc/l2core/init/reg/ench/EnchReg.java
@@ -38,7 +38,7 @@ public class EnchReg {
 	private final DeferredRegister<DataComponentType<?>> reg;
 	private final DeferredRegister<LegacyEnchantment> legacy;
 	private final L2Registrate pvd;
-
+	private final List<EnchReg> parent = new ArrayList<>();
 	private final List<EnchVal.Impl> list = new ArrayList<>();
 
 	private EnchReg(Reg reg, L2Registrate pvd) {
@@ -103,7 +103,12 @@ public class EnchReg {
 		));
 	}
 
+	public void addParent(EnchReg reg) {
+		parent.add(reg);
+	}
+
 	public void build(BootstrapContext<Enchantment> ctx) {
+		for (var e : parent) e.build(ctx);
 		for (var e : list) ctx.register(e.id(), e.builder().get().build(ctx, e.id().location()));
 	}
 
diff --git a/src/main/java/dev/xkmc/l2core/init/reg/simple/DCReg.java b/src/main/java/dev/xkmc/l2core/init/reg/simple/DCReg.java
index 21cf45d..ec0dcf1 100644
--- a/src/main/java/dev/xkmc/l2core/init/reg/simple/DCReg.java
+++ b/src/main/java/dev/xkmc/l2core/init/reg/simple/DCReg.java
@@ -65,6 +65,10 @@ public record DCReg(DeferredRegister<DataComponentType<?>> reg) {
 		return reg(id, Codec.DOUBLE, ByteBufCodecs.DOUBLE, false);
 	}
 
+	public DCVal<Float> floatVal(String id) {
+		return reg(id, Codec.FLOAT, ByteBufCodecs.FLOAT, false);
+	}
+
 	public DCVal<Long> longVal(String id) {
 		return reg(id, Codec.LONG, ByteBufCodecs.VAR_LONG, false);
 	}
diff --git a/src/main/java/dev/xkmc/l2core/util/Proxy.java b/src/main/java/dev/xkmc/l2core/util/Proxy.java
index a09a977..a84970f 100644
--- a/src/main/java/dev/xkmc/l2core/util/Proxy.java
+++ b/src/main/java/dev/xkmc/l2core/util/Proxy.java
@@ -4,12 +4,14 @@ import net.minecraft.client.Minecraft;
 import net.minecraft.client.player.LocalPlayer;
 import net.minecraft.core.RegistryAccess;
 import net.minecraft.server.MinecraftServer;
+import net.minecraft.world.level.Level;
 import net.neoforged.api.distmarker.Dist;
 import net.neoforged.fml.loading.FMLEnvironment;
 import net.neoforged.neoforge.server.ServerLifecycleHooks;
 
 import javax.annotation.Nullable;
 import java.util.Optional;
+import java.util.function.BiConsumer;
 
 public class Proxy {
 
@@ -21,6 +23,14 @@ public class Proxy {
 		return ServerLifecycleHooks.getCurrentServer().registryAccess();
 	}
 
+	@Nullable
+	public static Level getLevel() {
+		if (FMLEnvironment.dist == Dist.CLIENT) {
+			return Minecraft.getInstance().level;
+		}
+		return ServerLifecycleHooks.getCurrentServer().overworld();
+	}
+
 	public static Optional<MinecraftServer> getServer() {
 		return Optional.ofNullable(ServerLifecycleHooks.getCurrentServer());
 	}
diff --git a/src/main/java/dev/xkmc/l2core/util/TooltipHelper.java b/src/main/java/dev/xkmc/l2core/util/TooltipHelper.java
new file mode 100644
index 0000000..e9e4621
--- /dev/null
+++ b/src/main/java/dev/xkmc/l2core/util/TooltipHelper.java
@@ -0,0 +1,22 @@
+package dev.xkmc.l2core.util;
+
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.gui.screens.Screen;
+import net.minecraft.world.item.Item;
+import net.minecraft.world.item.TooltipFlag;
+import net.minecraft.world.level.Level;
+import net.neoforged.fml.loading.FMLEnvironment;
+
+import java.util.function.Consumer;
+
+public record TooltipHelper(Level level, boolean shift, boolean alt) {
+
+	public static void addClient(Item.TooltipContext ctx, TooltipFlag flag, Consumer<TooltipHelper> action) {
+		if (!FMLEnvironment.dist.isClient()) return;
+		if (ctx.registries() == null) return;
+		var level = Minecraft.getInstance().level;
+		if (level == null) return;
+		action.accept(new TooltipHelper(level, Screen.hasShiftDown(), Screen.hasAltDown()));
+	}
+
+}