diff --git a/Asset/data/asset/functions/artifact/1391.blue_refraction_prism/give/1.trigger.mcfunction b/Asset/data/asset/functions/artifact/1391.blue_refraction_prism/give/1.trigger.mcfunction
new file mode 100644
index 0000000000..396ebe35ef
--- /dev/null
+++ b/Asset/data/asset/functions/artifact/1391.blue_refraction_prism/give/1.trigger.mcfunction
@@ -0,0 +1,7 @@
+#> asset:artifact/1391.blue_refraction_prism/give/1.trigger
+#
+# 神器の取得処理の呼び出し時に実行されるfunction
+#
+# @within tag/function asset:artifact/give
+
+execute if data storage asset:context {id:1391} run function asset:artifact/1391.blue_refraction_prism/give/2.give
\ No newline at end of file
diff --git a/Asset/data/asset/functions/artifact/1391.blue_refraction_prism/give/2.give.mcfunction b/Asset/data/asset/functions/artifact/1391.blue_refraction_prism/give/2.give.mcfunction
new file mode 100644
index 0000000000..da88a39145
--- /dev/null
+++ b/Asset/data/asset/functions/artifact/1391.blue_refraction_prism/give/2.give.mcfunction
@@ -0,0 +1,73 @@
+#> asset:artifact/1391.blue_refraction_prism/give/2.give
+#
+# 神器の作成部 ここでID等を定義する
+#
+# @user
+# @within function asset:artifact/1391.blue_refraction_prism/give/1.trigger
+
+# 神器の説明や消費MPなどをここで設定する。
+# 最後にasset:artifact/common/giveを実行することで入手可能。
+
+# 神器のID (int) スプレッドシートの値を入れる
+    data modify storage asset:artifact ID set value 1391
+# 神器のベースアイテム
+    data modify storage asset:artifact Item set value "minecraft:stick"
+# 神器の名前 (TextComponentString)
+    data modify storage asset:artifact Name set value '[{"text":"青","color":"#7A7AFF"},{"text":"色","color":"#8484FF"},{"text":"の","color":"#8E8EFF"},{"text":"屈","color":"#9898FF"},{"text":"折","color":"#A2A2FF"},{"text":"","color":"#ACACFF"},{"text":"プ","color":"#B6B6FF"},{"text":"リ","color":"#C0C0FF"},{"text":"ズ","color":"#CACAFF"},{"text":"ム","color":"#D4D4FF"}]'
+# 神器の説明文 (TextComponentString[])
+    data modify storage asset:artifact Lore set value ['{"text":"攻撃対象3体にダメージ量の10%分の水属性ダメージを与える"}','{"text":"このダメージは自身のステータス補正の影響を受けない"}']
+# 消費アイテム ({Item: TextComponent, Count: int, Extra?: TextComponent}) (オプション)
+    # data modify storage asset:artifact ConsumeItem.Item set value '{"translate":"item.minecraft.stick"}'
+    # data modify storage asset:artifact ConsumeItem.Count set value 1
+    # data modify storage asset:artifact ConsumeItem.Extra set value
+# 使用回数 (int) (オプション)
+    # data modify storage asset:artifact RemainingCount set value
+# 神器を発動できるスロット (string) Wikiを参照
+    data modify storage asset:artifact Slot set value "hotbar"
+# 神器のトリガー (string) Wikiを参照
+    data modify storage asset:artifact Trigger set value "onAttack"
+# 効果が重複可能か否か (boolean) (オプション)
+    # data modify storage asset:artifact EnableDuplication set value
+# 神器の発動条件 (TextComponentString) (オプション)
+    data modify storage asset:artifact Condition set value '{"text":"水属性以外で属性攻撃"}'
+# 攻撃に関する情報 -Damage量 (literal[]/literal) Wikiを参照 (オプション)
+    # data modify storage asset:artifact AttackInfo.Damage set value [0,0]
+# 攻撃に関する情報 -攻撃タイプ (string[]) Wikiを参照 (オプション)
+    data modify storage asset:artifact AttackInfo.AttackType set value [Physical,Magic]
+# 攻撃に関する情報 -攻撃属性 (string[]) Wikiを参照 (オプション)
+    data modify storage asset:artifact AttackInfo.ElementType set value [Water]
+# 攻撃に関する情報 -防御無視 (boolean) Wikiを参照 (オプション)
+    # data modify storage asset:artifact AttackInfo.BypassResist set value
+# 攻撃に関する情報 -範囲攻撃 (string) Wikiを参照 (オプション)
+    # data modify storage asset:artifact AttackInfo.IsRangeAttack set value
+# 攻撃に関する情報 -攻撃範囲 (literal) Wikiを参照 (オプション)
+    # data modify storage asset:artifact AttackInfo.AttackRange set value
+# MP消費量 (int)
+    data modify storage asset:artifact MPCost set value 2
+# MP必要量 (int) (オプション)
+    # data modify storage asset:artifact MPRequire set value
+# MP回復量 (int)
+    # data modify storage asset:artifact MPHealWhenHit set value
+# 神器のクールダウン (int) (オプション)
+    data modify storage asset:artifact LocalCooldown set value 200
+# 種別クールダウン ({Type: string, Duration: int}) (オプション)
+    # data modify storage asset:artifact TypeCooldown.Type set value
+    # data modify storage asset:artifact TypeCooldown.Duration set value
+# 第二種別クールダウン ({Type: string, Duration: int}) (オプション)
+    # data modify storage asset:artifact SecondaryTypeCooldown.Type set value
+    # data modify storage asset:artifact SecondaryTypeCooldown.Duration set value
+# グローバルクールダウン (int) (オプション)
+    # data modify storage asset:artifact SpecialCooldown set value
+# クールダウンによる使用不可のメッセージを非表示にするか否か (boolean) (オプション)
+    data modify storage asset:artifact DisableCooldownMessage set value true
+# MP不足による使用不可のメッセージを非表示にするか否か (boolean) (オプション)
+    data modify storage asset:artifact DisableMPMessage set value true
+# 破壊時の音を鳴らさないかどうか (boolean) (オプション)
+    # data modify storage asset:artifact DisableBreakSound set value
+# 扱える神 (string[]) Wikiを参照
+    data modify storage asset:artifact CanUsedGod set value "ALL"
+# カスタムNBT (NBTCompound) 追加で指定したいNBT (オプション)
+    # data modify storage asset:artifact CustomNBT set value {}
+
+# 神器の入手用function
+    function asset:artifact/common/give
diff --git a/Asset/data/asset/functions/artifact/1391.blue_refraction_prism/register.mcfunction b/Asset/data/asset/functions/artifact/1391.blue_refraction_prism/register.mcfunction
new file mode 100644
index 0000000000..63c5907498
--- /dev/null
+++ b/Asset/data/asset/functions/artifact/1391.blue_refraction_prism/register.mcfunction
@@ -0,0 +1,7 @@
+#> asset:artifact/1391.blue_refraction_prism/register
+#
+# 神器プールへの登録処理
+#
+# @within tag/function asset:artifact/register
+
+# data modify storage asset:artifact RarityRegistry[1] append value [1391]
diff --git a/Asset/data/asset/functions/artifact/1391.blue_refraction_prism/trigger/1.trigger.mcfunction b/Asset/data/asset/functions/artifact/1391.blue_refraction_prism/trigger/1.trigger.mcfunction
new file mode 100644
index 0000000000..ddbaac8396
--- /dev/null
+++ b/Asset/data/asset/functions/artifact/1391.blue_refraction_prism/trigger/1.trigger.mcfunction
@@ -0,0 +1,8 @@
+#> asset:artifact/1391.blue_refraction_prism/trigger/1.trigger
+#
+# 指定したイベントタイミングで実行されるfunction
+#
+# @within tag/function asset:artifact/**
+
+# storage asset:idの%slot%に装備している神器のIDが入っているので比較し、~/2.check_condition.mcfunctionを実行する
+    execute if data storage asset:context id{hotbar:[1391]} run function asset:artifact/1391.blue_refraction_prism/trigger/2.check_condition
\ No newline at end of file
diff --git a/Asset/data/asset/functions/artifact/1391.blue_refraction_prism/trigger/2.check_condition.mcfunction b/Asset/data/asset/functions/artifact/1391.blue_refraction_prism/trigger/2.check_condition.mcfunction
new file mode 100644
index 0000000000..8d91c3b689
--- /dev/null
+++ b/Asset/data/asset/functions/artifact/1391.blue_refraction_prism/trigger/2.check_condition.mcfunction
@@ -0,0 +1,33 @@
+#> asset:artifact/1391.blue_refraction_prism/trigger/2.check_condition
+#
+# 神器の発動条件をチェックします
+#
+# @within function asset:artifact/1391.blue_refraction_prism/trigger/1.trigger
+
+# ID指定する
+    data modify storage asset:artifact TargetID set value 1391
+# 神器の基本的な条件の確認を行うfunction、成功している場合CanUsedタグが付く
+    function asset:artifact/common/check_condition/hotbar
+# 他にアイテム等確認する場合はここに書く
+
+# CanUsedじゃないならreturn
+    execute if entity @s[tag=!CanUsed] run return fail
+
+# バニラ攻撃ならreturn
+    execute if data storage asset:context Attack{IsVanilla:true} run tag @s remove CanUsed
+    execute if entity @s[tag=!CanUsed] run return fail
+
+# DoTならreturn
+    execute if data storage asset:context Attack{IsDoT:true} run return fail
+    execute if entity @s[tag=!CanUsed] run return fail
+
+# 水属性ならreturn
+    execute if data storage asset:context Attack{ElementType:"Water"} run return fail
+    execute if entity @s[tag=!CanUsed] run return fail
+
+# Victimがいなければreturn
+    execute unless entity @e[type=#lib:living_without_player,tag=Victim,distance=..64] run return fail
+    execute if entity @s[tag=!CanUsed] run return fail
+
+# CanUsedタグをチェックして3.main.mcfunctionを実行する
+    execute if entity @s[tag=CanUsed] run function asset:artifact/1391.blue_refraction_prism/trigger/3.main
diff --git a/Asset/data/asset/functions/artifact/1391.blue_refraction_prism/trigger/3.main.mcfunction b/Asset/data/asset/functions/artifact/1391.blue_refraction_prism/trigger/3.main.mcfunction
new file mode 100644
index 0000000000..ea810efd76
--- /dev/null
+++ b/Asset/data/asset/functions/artifact/1391.blue_refraction_prism/trigger/3.main.mcfunction
@@ -0,0 +1,32 @@
+#> asset:artifact/1391.blue_refraction_prism/trigger/3.main
+#
+# 神器のメイン処理部
+#
+# @within function asset:artifact/1391.blue_refraction_prism/trigger/2.check_condition
+
+# 基本的な使用時の処理(MP消費や使用回数の処理など)を行う
+    function asset:artifact/common/use/hotbar
+
+# ここから先は神器側の効果の処理を書く
+
+# SingleDamageSession open
+    function api:damage/single_damage_session/open
+
+# 攻撃対象のうち近いN体にダメージ
+    execute as @e[type=#lib:living_without_player,tag=Victim,tag=!Uninterferable,distance=..64,sort=nearest,limit=3] at @s run function asset:artifact/1391.blue_refraction_prism/trigger/apply
+
+# SingleDamageSession close
+    function api:damage/single_damage_session/close
+
+# 音
+    execute at @e[type=#lib:living_without_player,tag=Target,distance=..64] run function asset:artifact/1391.blue_refraction_prism/trigger/sound
+
+# 自作パーティクル
+    function asset:artifact/1391.blue_refraction_prism/trigger/vfx/
+    function asset:artifact/1391.blue_refraction_prism/trigger/vfx/
+    function asset:artifact/1391.blue_refraction_prism/trigger/vfx/
+    function asset:artifact/1391.blue_refraction_prism/trigger/vfx/
+
+# リセット
+    data remove storage asset:temp Temp
+    tag @e[type=#lib:living_without_player,tag=Target,distance=..64] remove Target
diff --git a/Asset/data/asset/functions/artifact/1391.blue_refraction_prism/trigger/_index.d.mcfunction b/Asset/data/asset/functions/artifact/1391.blue_refraction_prism/trigger/_index.d.mcfunction
new file mode 100644
index 0000000000..916f999cdc
--- /dev/null
+++ b/Asset/data/asset/functions/artifact/1391.blue_refraction_prism/trigger/_index.d.mcfunction
@@ -0,0 +1,7 @@
+#> asset:artifact/1391.blue_refraction_prism/trigger/_index.d
+# @private
+
+#> tag
+# @within function asset:artifact/1391.blue_refraction_prism/trigger/**
+    #declare score_holder $TempID
+    #declare tag Target
diff --git a/Asset/data/asset/functions/artifact/1391.blue_refraction_prism/trigger/apply.mcfunction b/Asset/data/asset/functions/artifact/1391.blue_refraction_prism/trigger/apply.mcfunction
new file mode 100644
index 0000000000..b746a615ea
--- /dev/null
+++ b/Asset/data/asset/functions/artifact/1391.blue_refraction_prism/trigger/apply.mcfunction
@@ -0,0 +1,25 @@
+#> asset:artifact/1391.blue_refraction_prism/trigger/apply
+#
+#
+#
+# @within function asset:artifact/1391.blue_refraction_prism/trigger/3.main
+
+# 自身にTagを付与しておく
+    tag @s add Target
+
+# 事前処理
+    data modify storage asset:temp Temp.To set from storage asset:context Attack.To
+    data modify storage asset:temp Temp.Amounts set from storage asset:context Attack.Amounts
+    function asset:artifact/1391.blue_refraction_prism/trigger/recursive
+    scoreboard players reset $TempID Temporary
+
+# ダメージ
+# 自身の補正は適用されない
+    execute store result storage api: Argument.Damage double 0.001 run data get storage asset:temp Temp.Damage 100
+    data modify storage api: Argument.AttackType set from storage asset:context Attack.AttackType
+    data modify storage api: Argument.ElementType set value "Water"
+    data modify storage api: Argument.BypassModifier set value true
+    execute as @p[tag=this] run function api:damage/modifier
+    data modify storage api: Argument.BypassModifier set value false
+    function api:damage/
+    function api:damage/reset
diff --git a/Asset/data/asset/functions/artifact/1391.blue_refraction_prism/trigger/recursive.mcfunction b/Asset/data/asset/functions/artifact/1391.blue_refraction_prism/trigger/recursive.mcfunction
new file mode 100644
index 0000000000..f690728483
--- /dev/null
+++ b/Asset/data/asset/functions/artifact/1391.blue_refraction_prism/trigger/recursive.mcfunction
@@ -0,0 +1,20 @@
+#> asset:artifact/1391.blue_refraction_prism/trigger/recursive
+#
+#
+#
+# @within function
+#   asset:artifact/1391.blue_refraction_prism/trigger/apply
+#   asset:artifact/1391.blue_refraction_prism/trigger/recursive
+
+# 最後尾の要素を取得
+    execute store result score $TempID Temporary run data get storage asset:temp Temp.To[-1]
+
+# 最後尾のIDが自身のUUIDと一致しているなら、ダメージをTempStorageに入れておく
+    execute if score @s MobUUID = $TempID Temporary run data modify storage asset:temp Temp.Damage set from storage asset:temp Temp.Amounts[-1]
+
+# 一致していないなら最後尾の要素を削除
+    execute unless score @s MobUUID = $TempID Temporary run data remove storage asset:temp Temp.To[-1]
+    execute unless score @s MobUUID = $TempID Temporary run data remove storage asset:temp Temp.Amounts[-1]
+
+# 要素がある && 一致してないなら再帰
+    execute if data storage asset:temp Temp.To[0] unless score @s MobUUID = $TempID Temporary run function asset:artifact/1391.blue_refraction_prism/trigger/recursive
diff --git a/Asset/data/asset/functions/artifact/1391.blue_refraction_prism/trigger/sound.mcfunction b/Asset/data/asset/functions/artifact/1391.blue_refraction_prism/trigger/sound.mcfunction
new file mode 100644
index 0000000000..a23402c736
--- /dev/null
+++ b/Asset/data/asset/functions/artifact/1391.blue_refraction_prism/trigger/sound.mcfunction
@@ -0,0 +1,9 @@
+#> asset:artifact/1391.blue_refraction_prism/trigger/sound
+#
+#
+#
+# @within function asset:artifact/1391.blue_refraction_prism/trigger/3.main
+
+    playsound block.amethyst_cluster.step player @a ~ ~ ~ 1 0.7
+    playsound block.amethyst_cluster.step player @a ~ ~ ~ 1 0.65
+    playsound block.amethyst_cluster.step player @a ~ ~ ~ 1 0.6
diff --git a/Asset/data/asset/functions/artifact/1391.blue_refraction_prism/trigger/vfx/.mcfunction b/Asset/data/asset/functions/artifact/1391.blue_refraction_prism/trigger/vfx/.mcfunction
new file mode 100644
index 0000000000..1a4d6d825f
--- /dev/null
+++ b/Asset/data/asset/functions/artifact/1391.blue_refraction_prism/trigger/vfx/.mcfunction
@@ -0,0 +1,8 @@
+#> asset:artifact/1391.blue_refraction_prism/trigger/vfx/
+#
+#
+#
+# @within function asset:artifact/1391.blue_refraction_prism/trigger/3.main
+
+# Targetのうちランダムな1体の箇所で演出
+    execute as @e[type=#lib:living_without_player,tag=Target,distance=..64,sort=random,limit=1] at @s anchored eyes rotated ~ 0 positioned ^ ^-0.5 ^ run function asset:artifact/1391.blue_refraction_prism/trigger/vfx/summon
diff --git a/Asset/data/asset/functions/artifact/1391.blue_refraction_prism/trigger/vfx/summon.mcfunction b/Asset/data/asset/functions/artifact/1391.blue_refraction_prism/trigger/vfx/summon.mcfunction
new file mode 100644
index 0000000000..670e45a3aa
--- /dev/null
+++ b/Asset/data/asset/functions/artifact/1391.blue_refraction_prism/trigger/vfx/summon.mcfunction
@@ -0,0 +1,9 @@
+#> asset:artifact/1391.blue_refraction_prism/trigger/vfx/summon
+#
+#
+#
+# @within function asset:artifact/1391.blue_refraction_prism/trigger/vfx/
+
+    data modify storage api: Argument.ID set value 1156
+    data modify storage api: Argument.FieldOverride.Font set value 2
+    function api:object/summon
diff --git a/Asset/data/asset/functions/object/alias/1156/init.mcfunction b/Asset/data/asset/functions/object/alias/1156/init.mcfunction
index 7cca2cfa71..2b690f2e74 100644
--- a/Asset/data/asset/functions/object/alias/1156/init.mcfunction
+++ b/Asset/data/asset/functions/object/alias/1156/init.mcfunction
@@ -5,4 +5,4 @@
 # @within asset_manager:object/init/init.m
 
 # 元のInit処理を呼び出す
-    function asset:object/1156.refraction_prism/init/
\ No newline at end of file
+    function asset:object/1156.refraction_prism/init/
diff --git a/Asset/data/asset/functions/object/alias/1156/register.mcfunction b/Asset/data/asset/functions/object/alias/1156/register.mcfunction
index 36f188283d..d3e5d8ac3e 100644
--- a/Asset/data/asset/functions/object/alias/1156/register.mcfunction
+++ b/Asset/data/asset/functions/object/alias/1156/register.mcfunction
@@ -5,4 +5,4 @@
 # @within asset_manager:object/summon/register.m
 
 # 元の登録処理を呼び出す
-    function asset:object/1156.refraction_prism/register
\ No newline at end of file
+    function asset:object/1156.refraction_prism/register
diff --git a/Asset/data/asset/functions/object/alias/1156/summon.mcfunction b/Asset/data/asset/functions/object/alias/1156/summon.mcfunction
index 9875505ed0..0b481c2269 100644
--- a/Asset/data/asset/functions/object/alias/1156/summon.mcfunction
+++ b/Asset/data/asset/functions/object/alias/1156/summon.mcfunction
@@ -5,4 +5,4 @@
 # @within asset_manager:object/summon/summon.m
 
 # 元の召喚処理を呼び出す
-    function asset:object/1156.refraction_prism/summon/
\ No newline at end of file
+    function asset:object/1156.refraction_prism/summon/
diff --git a/Asset/data/asset/functions/object/alias/1156/tick.mcfunction b/Asset/data/asset/functions/object/alias/1156/tick.mcfunction
index 5aa2822bec..137fbcb328 100644
--- a/Asset/data/asset/functions/object/alias/1156/tick.mcfunction
+++ b/Asset/data/asset/functions/object/alias/1156/tick.mcfunction
@@ -5,4 +5,4 @@
 # @within asset_manager:object/tick/tick.m
 
 # 元のTick処理を呼び出す
-    function asset:object/1156.refraction_prism/tick/
\ No newline at end of file
+    function asset:object/1156.refraction_prism/tick/
diff --git a/Asset/data/asset/tags/functions/artifact/attack.json b/Asset/data/asset/tags/functions/artifact/attack.json
index cc4f84a8b8..68b8ee54f9 100644
--- a/Asset/data/asset/tags/functions/artifact/attack.json
+++ b/Asset/data/asset/tags/functions/artifact/attack.json
@@ -1,5 +1,6 @@
 {
     "values": [
+        "asset:artifact/1391.blue_refraction_prism/trigger/1.trigger",
         "asset:artifact/1534.drop_in_the_bucket/trigger/1.trigger",
         "asset:artifact/1327.lunatic_torch/trigger/1.trigger",
         "asset:artifact/1308.magnifier_of_detective_girl/trigger/1.trigger",
@@ -13,4 +14,4 @@
         "asset:artifact/0664.soul_fire_armor/attack/1.trigger",
         "asset:artifact/0724.oblivious_snow/attack/1.trigger"
     ]
-}
\ No newline at end of file
+}
diff --git a/Asset/data/asset/tags/functions/artifact/give.json b/Asset/data/asset/tags/functions/artifact/give.json
index fdb7a26c47..573b742d5f 100644
--- a/Asset/data/asset/tags/functions/artifact/give.json
+++ b/Asset/data/asset/tags/functions/artifact/give.json
@@ -1,5 +1,6 @@
 {
     "values": [
+        "asset:artifact/1391.blue_refraction_prism/give/1.trigger",
         "asset:artifact/1562.tsukimi_dango/give/1.trigger",
         "asset:artifact/1430.shield_of_fate/give/1.trigger",
         "asset:artifact/1453.frost_flake_bow/give/1.trigger",
diff --git a/Asset/data/asset/tags/functions/artifact/register.json b/Asset/data/asset/tags/functions/artifact/register.json
index 2bba1f3f33..b4e34863d3 100644
--- a/Asset/data/asset/tags/functions/artifact/register.json
+++ b/Asset/data/asset/tags/functions/artifact/register.json
@@ -1,5 +1,6 @@
 {
     "values": [
+        "asset:artifact/1391.blue_refraction_prism/register",
         "asset:artifact/1562.tsukimi_dango/register",
         "asset:artifact/1453.frost_flake_bow/register",
         "asset:artifact/1430.shield_of_fate/register",