diff --git a/components/Bullets/BlueCrystal.tscn b/components/Bullets/BlueCrystal.tscn
new file mode 100644
index 0000000..6e59520
--- /dev/null
+++ b/components/Bullets/BlueCrystal.tscn
@@ -0,0 +1,54 @@
+[gd_scene load_steps=8 format=3 uid="uid://b15v8csigsx5s"]
+
+[ext_resource type="PackedScene" uid="uid://crtdkysmnkith" path="res://components/Abstracts/BulletBase.tscn" id="1_flng1"]
+[ext_resource type="Script" uid="uid://d1031p38h24tw" path="res://scripts/Contents/Bullets/BlueCrystal.gd" id="2_0q2lw"]
+[ext_resource type="Texture2D" uid="uid://c7hyatbuieaj" path="res://resources/bullets/purple-crystal/frames/0.svg" id="3_7v6qk"]
+
+[sub_resource type="SpriteFrames" id="SpriteFrames_4h7m0"]
+animations = [{
+"frames": [{
+"duration": 1.0,
+"texture": ExtResource("3_7v6qk")
+}],
+"loop": true,
+"name": &"default",
+"speed": 5.0
+}]
+
+[sub_resource type="Curve" id="Curve_7v6qk"]
+_data = [Vector2(0, 0.5), 0.0, 0.0, 0, 0, Vector2(1, 0), 0.0, 0.0, 0, 0]
+point_count = 2
+
+[sub_resource type="CurveTexture" id="CurveTexture_4h7m0"]
+curve = SubResource("Curve_7v6qk")
+
+[sub_resource type="ParticleProcessMaterial" id="ParticleProcessMaterial_u2ooq"]
+particle_flag_disable_z = true
+direction = Vector3(-1, 0, 0)
+spread = 0.0
+initial_velocity_min = 100.0
+initial_velocity_max = 100.0
+gravity = Vector3(0, 0, 0)
+scale_min = 0.5
+scale_max = 0.5
+color = Color(1.353256, 1.353256, 1.353256, 1)
+alpha_curve = SubResource("CurveTexture_4h7m0")
+
+[node name="BlueCrystal" instance=ExtResource("1_flng1")]
+script = ExtResource("2_0q2lw")
+displayName = "蓝水晶"
+speed = 5.0
+lifeTime = 5000.0
+
+[node name="texture" parent="." index="0"]
+modulate = Color(0.8283318, 1.529841, 1.548706, 1)
+sprite_frames = SubResource("SpriteFrames_4h7m0")
+
+[node name="trail" type="GPUParticles2D" parent="texture" index="1"]
+unique_name_in_owner = true
+z_index = -1
+position = Vector2(-23, 0)
+amount = 10
+texture = ExtResource("3_7v6qk")
+local_coords = true
+process_material = SubResource("ParticleProcessMaterial_u2ooq")
diff --git a/components/Bullets/Diamond2.tscn b/components/Bullets/Diamond2.tscn
new file mode 100644
index 0000000..f63bcfa
--- /dev/null
+++ b/components/Bullets/Diamond2.tscn
@@ -0,0 +1,69 @@
+[gd_scene load_steps=8 format=3 uid="uid://chqclu0q4ew46"]
+
+[ext_resource type="PackedScene" uid="uid://crtdkysmnkith" path="res://components/Abstracts/BulletBase.tscn" id="1_slk7q"]
+[ext_resource type="Script" uid="uid://c1ywds8xwerm3" path="res://scripts/Contents/Bullets/Diamond2.gd" id="2_i4qda"]
+[ext_resource type="Texture2D" uid="uid://dfptmc7clhtx7" path="res://resources/bullets/diamond/frames/0.svg" id="3_pkqnc"]
+
+[sub_resource type="Animation" id="Animation_pkqnc"]
+resource_name = "spawn"
+
+[sub_resource type="Animation" id="Animation_0d4xv"]
+resource_name = "loop"
+loop_mode = 1
+step = 0.05
+tracks/0/type = "value"
+tracks/0/imported = false
+tracks/0/enabled = true
+tracks/0/path = NodePath(".:rotation")
+tracks/0/interp = 1
+tracks/0/loop_wrap = true
+tracks/0/keys = {
+"times": PackedFloat32Array(0, 1),
+"transitions": PackedFloat32Array(1, 1),
+"update": 0,
+"values": [0.0, 6.283185307179586]
+}
+
+[sub_resource type="Animation" id="Animation_g4uh6"]
+length = 0.001
+tracks/0/type = "value"
+tracks/0/imported = false
+tracks/0/enabled = true
+tracks/0/path = NodePath(".:rotation")
+tracks/0/interp = 1
+tracks/0/loop_wrap = true
+tracks/0/keys = {
+"times": PackedFloat32Array(0),
+"transitions": PackedFloat32Array(1),
+"update": 0,
+"values": [0.0]
+}
+
+[sub_resource type="AnimationLibrary" id="AnimationLibrary_v5jve"]
+_data = {
+&"RESET": SubResource("Animation_g4uh6"),
+&"loop": SubResource("Animation_0d4xv"),
+&"spawn": SubResource("Animation_pkqnc")
+}
+
+[node name="Diamond2" instance=ExtResource("1_slk7q")]
+script = ExtResource("2_i4qda")
+displayName = "钻石"
+lifeTime = 5000.0
+autoLoopAnimation = true
+
+[node name="texture" parent="." index="0"]
+scale = Vector2(0.6, 0.6)
+
+[node name="animator" parent="texture" index="0"]
+libraries = {
+&"": SubResource("AnimationLibrary_v5jve")
+}
+
+[node name="static" type="Sprite2D" parent="texture" index="1"]
+position = Vector2(70, 0)
+rotation = 1.5707964
+texture = ExtResource("3_pkqnc")
+
+[node name="hitbox" parent="." index="1"]
+position = Vector2(43, 0)
diff --git a/components/Characters/Rooster.tscn b/components/Characters/Rooster.tscn
index bcb5ac3..ed7a7b1 100644
--- a/components/Characters/Rooster.tscn
+++ b/components/Characters/Rooster.tscn
@@ -1,9 +1,10 @@
-[gd_scene load_steps=14 format=3 uid="uid://bm7ymrri6pykb"]
+[gd_scene load_steps=15 format=3 uid="uid://bm7ymrri6pykb"]
 
 [ext_resource type="PackedScene" uid="uid://cvogxi7mktumf" path="res://components/Abstracts/EntityBase.tscn" id="1_e5pl8"]
 [ext_resource type="Script" uid="uid://cthtupc6dtbav" path="res://scripts/Contents/Characters/Rooster.gd" id="2_oqdqd"]
 [ext_resource type="PackedScene" uid="uid://sp8f50c5mxyc" path="res://components/Weapons/Shield.tscn" id="3_0omr3"]
 [ext_resource type="AudioStream" uid="uid://dclinyhu256xi" path="res://resources/sounds/effect/Low Whoosh.mp3" id="3_4syso"]
+[ext_resource type="PackedScene" uid="uid://c3crr8r7y3oho" path="res://components/Weapons/BlueCrystal.tscn" id="3_joj4g"]
 [ext_resource type="AudioStream" uid="uid://cdrevrq7n6yqa" path="res://resources/sounds/effect/Boing.mp3" id="4_66s6c"]
 [ext_resource type="AudioStream" uid="uid://benyec5bqni0b" path="res://resources/sounds/effect/Chomp.wav" id="4_k0yme"]
 [ext_resource type="AudioStream" uid="uid://dmxh3bpk8vyy5" path="res://resources/sounds/effect/Coin.mp3" id="5_xnbhq"]
@@ -56,7 +57,11 @@ metadata/_edit_vertical_guides_ = [71.0]
 [node name="weaponStore" parent="." index="1"]
 process_mode = 4
 
-[node name="Shield" parent="weaponStore" index="0" instance=ExtResource("3_0omr3")]
+[node name="BlueCrystal" parent="weaponStore" index="0" instance=ExtResource("3_joj4g")]
+offset_bottom = 398.0
+
+[node name="Shield" parent="weaponStore" index="1" instance=ExtResource("3_0omr3")]
+debugRebuild = false
 
 [node name="sprint" parent="sounds" index="0"]
 stream = ExtResource("4_66s6c")
diff --git a/components/Weapons/BlueCrystal.tscn b/components/Weapons/BlueCrystal.tscn
new file mode 100644
index 0000000..22aad19
--- /dev/null
+++ b/components/Weapons/BlueCrystal.tscn
@@ -0,0 +1,39 @@
+[gd_scene load_steps=4 format=3 uid="uid://c3crr8r7y3oho"]
+
+[ext_resource type="PackedScene" uid="uid://ckq2cq6m23hq3" path="res://components/Abstracts/WeaponCardBase.tscn" id="1_rlc3s"]
+[ext_resource type="Texture2D" uid="uid://cp4ypuarjoshp" path="res://resources/skillIcons/purple-crystal.png" id="2_4qqa7"]
+[ext_resource type="Script" uid="uid://8xlc5upq36n7" path="res://scripts/Contents/Weapons/BlueCrystal.gd" id="2_jbcf8"]
+
+[node name="BlueCrystal" instance=ExtResource("1_rlc3s")]
+script = ExtResource("2_jbcf8")
+avatarTexture = ExtResource("2_4qqa7")
+displayName = "蓝水晶簇"
+quality = 2
+store = {
+"atk": 5,
+"count": 2.0
+}
+storeType = {
+"atk": 1,
+"count": 1,
+"distance": 0
+}
+descriptionTemplate = "发射[b]蓝水晶[/b]，可无限追踪，命中造成$atk点伤害，飞行过程中有$count颗[b]钻石[/b]环绕。"
+cooldown = 175.0
+
+[node name="avatar" parent="container/info" index="0"]
+modulate = Color(0.828, 1.53, 1.549, 1)
+texture = ExtResource("2_4qqa7")
+
+[node name="beachball" parent="container/info/infos" index="1"]
+count = 500
+
+[node name="soul" parent="container/info/infos" index="2"]
+count = 1
+
+[node name="name" parent="container/info" index="2"]
+displayName = "蓝水晶簇"
+quality = 2
+
+[node name="description" parent="container" index="2"]
+text = "[center]发射[b]蓝水晶[/b]，可无限追踪，命中造成[color=cyan]5[/color]点伤害，飞行过程中有[color=cyan]2[/color]颗[b]钻石[/b]环绕，在运动$distance秒后逃逸。[/center]"
diff --git a/scripts/Contents/Bullets/BlueCrystal.gd b/scripts/Contents/Bullets/BlueCrystal.gd
new file mode 100644
index 0000000..5ed77d8
--- /dev/null
+++ b/scripts/Contents/Bullets/BlueCrystal.gd
@@ -0,0 +1,16 @@
+extends BulletBase
+class_name BlueCrystalBullet
+
+var tracer: EntityBase = null
+@onready var trail: GPUParticles2D = $%trail
+
+func ai():
+	if is_instance_valid(tracer):
+		var tracker = tracer.getTrackingAnchor()
+		var targetAngle = position.angle_to_point(tracker)
+		trail.rotation = - Vector2.from_angle(rotation).angle_to(Vector2.from_angle(targetAngle)) * 0.75 / (speed / initialSpeed)
+		PresetBulletAI.trace(self, tracker, 0.05)
+	else:
+		trail.rotation = 0
+	speed += 0.1
+	PresetBulletAI.forward(self, rotation)
diff --git a/scripts/Contents/Bullets/BlueCrystal.gd.uid b/scripts/Contents/Bullets/BlueCrystal.gd.uid
new file mode 100644
index 0000000..f903b7d
--- /dev/null
+++ b/scripts/Contents/Bullets/BlueCrystal.gd.uid
@@ -0,0 +1 @@
+uid://d1031p38h24tw
diff --git a/scripts/Contents/Bullets/Diamond2.gd b/scripts/Contents/Bullets/Diamond2.gd
new file mode 100644
index 0000000..0957f76
--- /dev/null
+++ b/scripts/Contents/Bullets/Diamond2.gd
@@ -0,0 +1,6 @@
+extends BulletBase
+class_name Diamond2Bullet
+
+func ai():
+	if is_instance_valid(parent):
+		position = parent.position
diff --git a/scripts/Contents/Bullets/Diamond2.gd.uid b/scripts/Contents/Bullets/Diamond2.gd.uid
new file mode 100644
index 0000000..e31d0fb
--- /dev/null
+++ b/scripts/Contents/Bullets/Diamond2.gd.uid
@@ -0,0 +1 @@
+uid://c1ywds8xwerm3
diff --git a/scripts/Contents/Weapons/BlueCrystal.gd b/scripts/Contents/Weapons/BlueCrystal.gd
new file mode 100644
index 0000000..6dc6a96
--- /dev/null
+++ b/scripts/Contents/Weapons/BlueCrystal.gd
@@ -0,0 +1,17 @@
+@tool
+extends Weapon
+
+func update(to: int, origin: Dictionary, _entity: EntityBase):
+	origin["atk"] += 1 * to * soulLevel
+	origin["count"] = 1 * soulLevel
+	return origin
+func attack(entity: EntityBase):
+	for i in BulletBase.generate(ComponentManager.getBullet("BlueCrystal"), entity, entity.findWeaponAnchor("normal"), deg_to_rad(randf_range(0, 360))):
+		if i is BlueCrystalBullet:
+			i.tracer = EntityTool.findClosetEntity(get_global_mouse_position(), get_tree(), !entity.isPlayer(), entity.isPlayer())
+			i.baseDamage = readStore("atk")
+			for index in readStore("count"):
+				for j in BulletBase.generate(ComponentManager.getBullet("Diamond2"), entity, i.position, deg_to_rad(360.0 / readStore("count") * index)):
+					if j is Diamond2Bullet:
+						j.baseDamage = readStore("atk")
+						j.parent = i
diff --git a/scripts/Contents/Weapons/BlueCrystal.gd.uid b/scripts/Contents/Weapons/BlueCrystal.gd.uid
new file mode 100644
index 0000000..8ef32ae
--- /dev/null
+++ b/scripts/Contents/Weapons/BlueCrystal.gd.uid
@@ -0,0 +1 @@
+uid://8xlc5upq36n7
diff --git a/scripts/Statemachine/BulletBase.gd b/scripts/Statemachine/BulletBase.gd
index 099ceef..a24e888 100644
--- a/scripts/Statemachine/BulletBase.gd
+++ b/scripts/Statemachine/BulletBase.gd
@@ -26,6 +26,7 @@ class_name BulletBase
 
 var launcher: EntityBase = null
 var launcherSummoned: EntityBase = null
+var parent: BulletBase = null
 var spawnInWhen: float = 0
 var spawnInWhere: Vector2 = Vector2.ZERO
 var destroying: bool = false