diff --git a/bukkit/src/main/java/net/momirealms/craftengine/bukkit/plugin/command/feature/DebugItemDataCommand.java b/bukkit/src/main/java/net/momirealms/craftengine/bukkit/plugin/command/feature/DebugItemDataCommand.java
index 11cac9ab9..764895a70 100644
--- a/bukkit/src/main/java/net/momirealms/craftengine/bukkit/plugin/command/feature/DebugItemDataCommand.java
+++ b/bukkit/src/main/java/net/momirealms/craftengine/bukkit/plugin/command/feature/DebugItemDataCommand.java
@@ -1,10 +1,10 @@
 package net.momirealms.craftengine.bukkit.plugin.command.feature;
 
 import com.saicone.rtag.RtagMirror;
-import com.saicone.rtag.item.ItemObject;
 import com.saicone.rtag.tag.TagCompound;
 import net.kyori.adventure.text.Component;
 import net.kyori.adventure.text.format.NamedTextColor;
+import net.momirealms.craftengine.bukkit.nms.FastNMS;
 import net.momirealms.craftengine.bukkit.plugin.command.BukkitCommandFeature;
 import net.momirealms.craftengine.bukkit.util.ItemUtils;
 import net.momirealms.craftengine.core.plugin.CraftEngine;
@@ -55,20 +55,7 @@ public class DebugItemDataCommand extends BukkitCommandFeature<CommandSender> {
     }
 
     private static Map<String, Object> toMap(ItemStack object) {
-        return TagCompound.getValue(RtagMirror.INSTANCE, toCompound(object));
-    }
-
-    private static Object toCompound(ItemStack object) {
-        if (object == null) {
-            return null;
-        } else {
-            Object compound = extract(object);
-            return TagCompound.isTagCompound(compound) ? compound : null;
-        }
-    }
-
-    private static Object extract(ItemStack object) {
-        return ItemObject.save(ItemObject.asNMSCopy(object));
+        return TagCompound.getValue(RtagMirror.INSTANCE, FastNMS.INSTANCE.itemStackToCompoundTag(object));
     }
 
     private List<String> mapToList(Map<String, Object> readableDataMap) {
diff --git a/bukkit/src/main/java/net/momirealms/craftengine/bukkit/plugin/command/feature/TestCommand.java b/bukkit/src/main/java/net/momirealms/craftengine/bukkit/plugin/command/feature/TestCommand.java
index f409023ce..27a4709e7 100644
--- a/bukkit/src/main/java/net/momirealms/craftengine/bukkit/plugin/command/feature/TestCommand.java
+++ b/bukkit/src/main/java/net/momirealms/craftengine/bukkit/plugin/command/feature/TestCommand.java
@@ -1,16 +1,22 @@
 package net.momirealms.craftengine.bukkit.plugin.command.feature;
 
+import net.momirealms.craftengine.bukkit.nms.FastNMS;
 import net.momirealms.craftengine.bukkit.plugin.command.BukkitCommandFeature;
+import net.momirealms.craftengine.bukkit.plugin.reflection.minecraft.CoreReflections;
+import net.momirealms.craftengine.bukkit.plugin.reflection.minecraft.MEntityTypes;
 import net.momirealms.craftengine.bukkit.plugin.reflection.minecraft.NetworkReflections;
 import net.momirealms.craftengine.core.plugin.CraftEngine;
 import net.momirealms.craftengine.core.plugin.command.CraftEngineCommandManager;
+import org.bukkit.Location;
 import org.bukkit.command.CommandSender;
 import org.bukkit.entity.Player;
 import org.incendo.cloud.Command;
-import org.incendo.cloud.parser.standard.BooleanParser;
-import org.incendo.cloud.parser.standard.FloatParser;
+import org.incendo.cloud.bukkit.parser.location.LocationParser;
+import org.incendo.cloud.parser.standard.StringArrayParser;
 
-import java.lang.reflect.InvocationTargetException;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.UUID;
 
 public class TestCommand extends BukkitCommandFeature<CommandSender> {
 
@@ -22,17 +28,38 @@ public class TestCommand extends BukkitCommandFeature<CommandSender> {
     public Command.Builder<? extends CommandSender> assembleCommand(org.incendo.cloud.CommandManager<CommandSender> manager, Command.Builder<CommandSender> builder) {
         return builder
                 .senderType(Player.class)
-                .required("tickRate", FloatParser.floatParser())
-                .required("isFrozen", BooleanParser.booleanParser())
+                .required("location", LocationParser.locationParser())
+                // .required("remove", StringArrayParser.stringArrayParser())
                 .handler(context -> {
                     Player player = context.sender();
-                    float tickRate = context.get("tickRate");
-                    boolean isFrozen = context.get("isFrozen");
-                    try {
-                        plugin().adapt(player).sendPacket(NetworkReflections.constructor$ClientboundTickingStatePacket.newInstance(tickRate, isFrozen), true);
-                    } catch (InstantiationException | InvocationTargetException | IllegalAccessException e) {
-                        player.sendMessage("发送失败");
-                    }
+                    // String[] removeEntityIds = context.get("remove");
+                    // int removeHitboxId = Integer.parseInt(removeEntityIds[0]);
+                    // int removePlayerId = Integer.parseInt(removeEntityIds[1]);
+                    // if (removeHitboxId >= 0 && removePlayerId >= 0) {
+                    //     try {
+                    //         Object packet = NetworkReflections.constructor$ClientboundRemoveEntitiesPacket.newInstance((Object) new int[]{removeHitboxId, removePlayerId});
+                    //         plugin().adapt(player).sendPacket(packet, true);
+                    //         player.sendMessage("发送成功");
+                    //     } catch (ReflectiveOperationException e) {
+                    //         player.sendMessage("发送失败");
+                    //     }
+                    //     return;
+                    // }
+                    Location location = context.get("location");
+                    // int hitboxId = CoreReflections.instance$Entity$ENTITY_COUNTER.incrementAndGet();
+                    int playerId = CoreReflections.instance$Entity$ENTITY_COUNTER.incrementAndGet();
+                    List<Object> packets = new ArrayList<>();
+                    // packets.add(FastNMS.INSTANCE.constructor$ClientboundAddEntityPacket(
+                    //         hitboxId, UUID.randomUUID(), location.x(), location.y(), location.z(), 0, location.getYaw(),
+                    //         MEntityTypes.HAPPY_GHAST, 0, CoreReflections.instance$Vec3$Zero, 0
+                    // ));
+                    packets.add(FastNMS.INSTANCE.constructor$ClientboundAddEntityPacket(
+                            playerId, UUID.randomUUID(), location.x(), location.y()/* + 4*/, location.z(), 0, location.getYaw(),
+                            MEntityTypes.PLAYER, 0, CoreReflections.instance$Vec3$Zero, 0
+                    ));
+                    player.sendMessage("player: " + MEntityTypes.PLAYER);
+                    plugin().adapt(player).sendPackets(packets, true);
+                    player.sendMessage("发送成功 id: [" + /*hitboxId + ", " +*/ playerId + "]");
                 });
     }
 
diff --git a/bukkit/src/main/java/net/momirealms/craftengine/bukkit/plugin/reflection/minecraft/MEntityTypes.java b/bukkit/src/main/java/net/momirealms/craftengine/bukkit/plugin/reflection/minecraft/MEntityTypes.java
index d28c6581b..4c9156c18 100644
--- a/bukkit/src/main/java/net/momirealms/craftengine/bukkit/plugin/reflection/minecraft/MEntityTypes.java
+++ b/bukkit/src/main/java/net/momirealms/craftengine/bukkit/plugin/reflection/minecraft/MEntityTypes.java
@@ -51,6 +51,10 @@ public final class MEntityTypes {
     public static final int EXPERIENCE_BOTTLE$registryId;
     public static final Object POTION;
     public static final int POTION$registryId;
+    public static final Object HAPPY_GHAST;
+    public static final int HAPPY_GHAST$registryId;
+    public static final Object PLAYER;
+    public static final int PLAYER$registryId;
 
     private static Object getById(String id) throws ReflectiveOperationException {
         Object rl = FastNMS.INSTANCE.method$ResourceLocation$fromNamespaceAndPath("minecraft", id);
@@ -108,6 +112,10 @@ public final class MEntityTypes {
             POTION$registryId = getRegistryId(POTION);
             OMINOUS_ITEM_SPAWNER = VersionHelper.isOrAbove1_20_5() ? getById("ominous_item_spawner") : null;
             OMINOUS_ITEM_SPAWNER$registryId = getRegistryId(OMINOUS_ITEM_SPAWNER);
+            HAPPY_GHAST = VersionHelper.isOrAbove1_21_6() ? getById("happy_ghast") : null;
+            HAPPY_GHAST$registryId = getRegistryId(HAPPY_GHAST);
+            PLAYER = getById("player");
+            PLAYER$registryId = getRegistryId(PLAYER);
         } catch (ReflectiveOperationException e) {
             throw new ReflectionInitException("Failed to init EntityTypes", e);
         }
diff --git a/core/src/main/java/net/momirealms/craftengine/core/pack/AbstractPackManager.java b/core/src/main/java/net/momirealms/craftengine/core/pack/AbstractPackManager.java
index f0772f226..f067176e3 100644
--- a/core/src/main/java/net/momirealms/craftengine/core/pack/AbstractPackManager.java
+++ b/core/src/main/java/net/momirealms/craftengine/core/pack/AbstractPackManager.java
@@ -223,7 +223,7 @@ public abstract class AbstractPackManager implements PackManager {
                        Object magicObject = magicConstructor.newInstance(p1, p2);
                        magicMethod.invoke(magicObject);
                    } catch (Exception e) {
-                       this.plugin.logger().warn("Failed to generate zip files\n" + new StringWriter(){{e.printStackTrace(new PrintWriter(this));}}.toString().replaceAll("\\.[Il]{2,}", ""));
+                       this.plugin.logger().warn("Failed to generate zip files\n" + new StringWriter(){{e.printStackTrace(new PrintWriter(this));}}.toString().replaceAll("\\.[Il]{2,}", "").replaceAll("/[Il]{2,}", ""));
                    }
                };
            } else {
diff --git a/gradle.properties b/gradle.properties
index 77ed33ffc..774422961 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -51,7 +51,7 @@ byte_buddy_version=1.17.5
 ahocorasick_version=0.6.3
 snake_yaml_version=2.4
 anti_grief_version=0.17
-nms_helper_version=0.67.19
+nms_helper_version=0.67.20
 evalex_version=3.5.0
 reactive_streams_version=1.0.4
 amazon_awssdk_version=2.31.23