diff --git a/src/main/java/emu/grasscutter/command/commands/GiveAllCommand.java b/src/main/java/emu/grasscutter/command/commands/GiveAllCommand.java
index b994fe419..47ac08405 100644
--- a/src/main/java/emu/grasscutter/command/commands/GiveAllCommand.java
+++ b/src/main/java/emu/grasscutter/command/commands/GiveAllCommand.java
@@ -14,20 +14,22 @@ import emu.grasscutter.game.inventory.ItemType;
 import java.util.*;
 
 @Command(label = "giveall", usage = "giveall [player] <amount>",
-        description = "Gives all items", aliases = {"givea"}, permission = "player.giveall",threading = true)
+        description = "Gives all items", aliases = {"givea"}, permission = "player.giveall", threading = true)
 public class GiveAllCommand implements CommandHandler {
+
     @Override
     public void execute(GenshinPlayer sender, List<String> args) {
-        int target,amount=99999;
+        int target, amount = 99999;
 
-        if(sender == null){
-            CommandHandler.sendMessage(null, "Run this command in-game");
-            return;
-        }
         switch (args.size()) {
-            default: // *no args*
+            case 0: // *no args*
+                if (sender == null) {
+                    CommandHandler.sendMessage(null, "This usage can only be run in-game");
+                    return;
+                }
                 target = sender.getUid();
                 break;
+
             case 1: // [player]
                 try {
                     target = Integer.parseInt(args.get(0));
@@ -40,6 +42,7 @@ public class GiveAllCommand implements CommandHandler {
                     return;
                 }
                 break;
+
             case 2: // [player] [amount]
                 try {
                     target = Integer.parseInt(args.get(0));
@@ -49,11 +52,15 @@ public class GiveAllCommand implements CommandHandler {
                     } else {
                         amount = Integer.parseInt(args.get(1));
                     }
-                 } catch (NumberFormatException ignored) {
+                } catch (NumberFormatException ignored) {
                     CommandHandler.sendMessage(sender, "Invalid amount or player ID.");
                     return;
                 }
                 break;
+
+            default: // invalid
+                CommandHandler.sendMessage(null, "Usage: giveall [player] <amount>");
+                return;
         }
 
         GenshinPlayer targetPlayer = Grasscutter.getGameServer().getPlayerByUid(target);
@@ -62,47 +69,121 @@ public class GiveAllCommand implements CommandHandler {
             return;
         }
 
-        this.GetAllItem(targetPlayer,amount);
-        CommandHandler.sendMessage(sender, "Done! or Getting all items done");
+        this.giveAllItems(targetPlayer, amount);
+        CommandHandler.sendMessage(sender, "Giving all items done");
     }
 
-    public void GetAllItem(GenshinPlayer player, int amount){
-        CommandHandler.sendMessage(player, "Getting all item....");
+    public void giveAllItems(GenshinPlayer player, int amount) {
+        CommandHandler.sendMessage(player, "Giving all items...");
 
-        Collection<GenshinItem> genshinItemList =new LinkedList<>();
-        for (ItemData itemdata: GenshinData.getItemDataMap().values()) {
-            if(itemdata.getId() > 1000 && itemdata.getId() <= 1099)continue;//is avatar
-            if (itemdata.isEquip()) {
-                for (int i = 0; i < 20; i++) {
-                    GenshinItem genshinItem = new GenshinItem(itemdata);
-                    if(itemdata.getItemType() == ItemType.ITEM_WEAPON){
-                        genshinItem.setLevel(90);
-                        genshinItem.setPromoteLevel(6);
-                    }
-                    genshinItemList.add(genshinItem);
-                }
-            } else {
-                GenshinItem genshinItem = new GenshinItem(itemdata);
-                genshinItem.setCount(amount);
-                genshinItemList.add(genshinItem);
-            }
-        }
-        player.getInventory().addItems(genshinItemList);
+        for (AvatarData avatarData: GenshinData.getAvatarDataMap().values()) {
+            //Exclude test avatar
+            if (isTestAvatar(avatarData.getId())) continue;
 
-        for(AvatarData avatarData:GenshinData.getAvatarDataMap().values()) {
-            if(avatarData.getId() == 10000001 || avatarData.getId() >= 10000099)continue;
-            // Calculate ascension level.
-            int ascension = (int) Math.ceil(90 / 10f) - 3;
             GenshinAvatar avatar = new GenshinAvatar(avatarData);
             avatar.setLevel(90);
-            avatar.setPromoteLevel(ascension);
-            for (int i = 1;i<=6;i++){
-                avatar.getTalentIdList().add((avatar.getAvatarId()-10000000)*10+i);//(10000058-10000000)*10+i
+            avatar.setPromoteLevel(6);
+            for (int i = 1; i <= 6; ++i) {
+                avatar.getTalentIdList().add((avatar.getAvatarId() - 10000000) * 10 + i);
             }
             // This will handle stats and talents
             avatar.recalcStats();
             player.addAvatar(avatar);
         }
+
+        //some test items
+        List<GenshinItem> genshinItemList = new ArrayList<>();
+        for (ItemData itemdata: GenshinData.getItemDataMap().values()) {
+            //Exclude test item
+            if (isTestItem(itemdata.getId())) continue;
+
+            if (itemdata.isEquip()) {
+                for (int i = 0; i < 10; ++i) {
+                    GenshinItem genshinItem = new GenshinItem(itemdata);
+                    if (itemdata.getItemType() == ItemType.ITEM_WEAPON) {
+                        genshinItem.setLevel(90);
+                        genshinItem.setPromoteLevel(6);
+                        genshinItem.setRefinement(4);
+                    }
+                    genshinItemList.add(genshinItem);
+                }
+            }
+            else {
+                GenshinItem genshinItem = new GenshinItem(itemdata);
+                genshinItem.setCount(amount);
+                genshinItemList.add(genshinItem);
+            }
+        }
+        int packetNum = 20;
+        int itemLength = genshinItemList.size();
+        int number = itemLength / packetNum;
+        int remainder = itemLength % packetNum;
+        int offset = 0;
+        for (int i = 0; i < packetNum; ++i) {
+            if (remainder > 0) {
+                player.getInventory().addItems(genshinItemList.subList(i * number + offset, (i + 1) * number + offset + 1));
+                --remainder;
+                ++offset;
+            }
+            else {
+                player.getInventory().addItems(genshinItemList.subList(i * number + offset, (i + 1) * number + offset));
+            }
+        }
     }
 
+    public boolean isTestAvatar(int avatarId) {
+        return avatarId < 10000002 || avatarId >= 11000000;
+    }
+
+    public boolean isTestItem(int itemId) {
+        for (Range range: testItemRanges) {
+            if (range.check(itemId)) {
+                return true;
+            }
+        }
+
+        if (testItemsList.contains(itemId)) {
+            return true;
+        }
+
+        return false;
+    }
+
+    static class Range {
+        private int min;
+        private int max;
+
+        public Range(int min, int max) {
+            if(min > max){
+                min ^= max;
+                max ^= min;
+                min ^= max;
+            }
+            this.min = min;
+            this.max = max;
+        }
+
+        public boolean check(int value) {
+            return value >= this.min && value <= this.max;
+        }
+    }
+
+    private static final Range[] testItemRanges = new Range[] {
+            new Range(106, 139),
+            new Range(1000, 1099),
+            new Range(2001, 2008),
+            new Range(2017, 2029),
+          //  new Range(108001, 108387) //food
+    };
+
+    private static final Integer[] testItemsIds = new Integer[] {
+            210, 211, 314, 315, 317, 1005, 1007, 1105, 1107, 1201, 1202, 2800,
+            100001, 100002, 100244, 100305, 100312, 100313, 101212, 11411, 11506, 11507, 11508, 12505,
+            12506, 12508, 12509, 13503, 13506, 14411, 14503, 14505, 14508, 15411, 15504, 15505,
+            15506, 15508, 20001, 10002, 10003, 10004, 10005, 10006, 10008 //9
+    };
+
+    private static final Collection<Integer> testItemsList = Arrays.asList(testItemsIds);
+
 }
+