diff --git a/Asset/data/asset/functions/artifact/0456.potion_of_stalling_power/give/2.give.mcfunction b/Asset/data/asset/functions/artifact/0456.potion_of_stalling_power/give/2.give.mcfunction
index 9ec242a399..672866dbdc 100644
--- a/Asset/data/asset/functions/artifact/0456.potion_of_stalling_power/give/2.give.mcfunction
+++ b/Asset/data/asset/functions/artifact/0456.potion_of_stalling_power/give/2.give.mcfunction
@@ -15,7 +15,7 @@
 # 神器の名前 (TextComponentString)
     data modify storage asset:artifact Name set value '{"text":"失速する速力のポーション","color":"dark_aqua"}'
 # 神器の説明文 (TextComponentString[])
-    data modify storage asset:artifact Lore set value ['{"text":"力は一時的な物でしかない。","color":"gray"}','{"text":"その欲求を求め続けるなら","color":"gray"}','{"text":"代償を支払うものだ。","color":"gray"}']
+    data modify storage asset:artifact Lore set value ['{"text":"- 50秒間、移動速度にバフを得る","color":"white"}','{"translate":"%1$sこのバフは%2$sから始まり","color":"white","with":[{"text":"\\u0010","font":"space"},{"text":"80%"}]}','{"translate":"%1$s10秒経つごとに効果量が%2$sされる","color":"white","with":[{"text":"\\u0010","font":"space"},{"text":"-20%"}]}','{"translate":"- バフ終了後に20秒間、移動速度が%1$s低下する","color":"white","with":[{"text":"20%"}]}','{"text":"- バフ効果時間中に再使用すると","color":"white"}','{"translate":"%1$s最大体力の%2$s分のダメージを受ける","color":"white","with":[{"text":"\\u0010","font":"space"},{"text":"20%"}]}','{"text":"力は一時的な物でしかない。","color":"gray"}','{"text":"その欲求を求め続けるなら","color":"gray"}','{"text":"代償を支払うものだ。","color":"gray"}']
 # 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
     # data modify storage asset:artifact ConsumeItem.Count set value
diff --git a/Asset/data/asset/functions/artifact/0456.potion_of_stalling_power/trigger/3.main.mcfunction b/Asset/data/asset/functions/artifact/0456.potion_of_stalling_power/trigger/3.main.mcfunction
index ad922f30ef..0cf8005301 100644
--- a/Asset/data/asset/functions/artifact/0456.potion_of_stalling_power/trigger/3.main.mcfunction
+++ b/Asset/data/asset/functions/artifact/0456.potion_of_stalling_power/trigger/3.main.mcfunction
@@ -9,17 +9,22 @@
 
 # ここから先は神器側の効果の処理を書く
 
-# 薄れゆく速さデバフ(ID:211)があるかどうかチェックする
-    #data modify storage api: Argument.ID set value 211
-    #function api:entity/mob/effect/get/from_id
+# 薄れゆく速さバフ(ID:210)があるかどうかチェックする
+    data modify storage api: Argument.ID set value 210
+    function api:entity/mob/effect/get/from_id
 
-# デバフがなければ薄れゆく速さバフ(ID:210)を、あればデバフ(ID:211)を付与
-    #execute unless data storage api: Return.Effect run data modify storage api: Argument.ID set value 210
-    #execute if data storage api: Return.Effect run data modify storage api: Argument.ID set value 211
+# バフがあるならダメージ
+    execute if data storage api: Return.Effect{ID:210} run function asset:artifact/0456.potion_of_stalling_power/trigger/reuse_damage
 
 # 薄れゆく速さバフを付与
-# EffectAssetのendのタイミングでエフェクトをgiveしても上手くいかないため
-# TODO: 治り次第直す
+# 仕様書
+# ((Stack - 1) * Amount)%から始まり、Durationが切れるたびにスタックが1減少し、効果時間が元に戻る
+# スタックが1の状態で時間切れになるとデバフに変化する
     data modify storage api: Argument.ID set value 210
+    data modify storage api: Argument.Stack set value 5
+    data modify storage api: Argument.Duration set value 200
+    data modify storage api: Argument.FieldOverride.Amount set value 0.2
+    data modify storage api: Argument.FieldOverride.Debuff.Duration set value 400
+    data modify storage api: Argument.FieldOverride.Debuff.Amount set value -0.2
     function api:entity/mob/effect/give
     function api:entity/mob/effect/reset
diff --git a/Asset/data/asset/functions/artifact/0456.potion_of_stalling_power/trigger/reuse_damage.mcfunction b/Asset/data/asset/functions/artifact/0456.potion_of_stalling_power/trigger/reuse_damage.mcfunction
new file mode 100644
index 0000000000..facb3168a2
--- /dev/null
+++ b/Asset/data/asset/functions/artifact/0456.potion_of_stalling_power/trigger/reuse_damage.mcfunction
@@ -0,0 +1,18 @@
+#> asset:artifact/0456.potion_of_stalling_power/trigger/reuse_damage
+#
+#
+#
+# @within function asset:artifact/0456.potion_of_stalling_power/trigger/3.main
+
+# 演出
+    particle minecraft:dragon_breath ~ ~1 ~ 0.1 0.1 0.1 0.03 100
+    playsound minecraft:entity.evoker.prepare_summon player @a
+
+# 最大体力に比例した固定ダメージを受ける
+    function api:modifier/max_health/get
+    execute store result storage api: Argument.Damage double 0.2 run data get storage api: Return.MaxHealth
+    data modify storage api: Argument.AttackType set value "Physical"
+    data modify storage api: Argument.FixedDamage set value true
+    data modify storage api: Argument.DeathMessage append value '[{"translate": "%1$sは速度の代償を払った","with":[{"selector":"@s"}]}]'
+    function api:damage/
+    function api:damage/reset
diff --git a/Asset/data/asset/functions/effect/0210.fading_speed/end/.mcfunction b/Asset/data/asset/functions/effect/0210.fading_speed/end/.mcfunction
index 9a20aac115..7809d57106 100644
--- a/Asset/data/asset/functions/effect/0210.fading_speed/end/.mcfunction
+++ b/Asset/data/asset/functions/effect/0210.fading_speed/end/.mcfunction
@@ -7,7 +7,9 @@
 # 補正を削除する
     function asset:effect/0210.fading_speed/modifier/remove
 
-# 効果時間終了時、デバフを付与
+# 薄れゆく速さ(デバフ)を付与
     data modify storage api: Argument.ID set value 211
+    data modify storage api: Argument.Duration set from storage asset:context this.Debuff.Duration
+    data modify storage api: Argument.FieldOverride.Amount set from storage asset:context this.Debuff.Amount
     function api:entity/mob/effect/give
     function api:entity/mob/effect/reset
diff --git a/Asset/data/asset/functions/effect/0210.fading_speed/given/.mcfunction b/Asset/data/asset/functions/effect/0210.fading_speed/given/.mcfunction
index 2651fda6c0..b2e02b06df 100644
--- a/Asset/data/asset/functions/effect/0210.fading_speed/given/.mcfunction
+++ b/Asset/data/asset/functions/effect/0210.fading_speed/given/.mcfunction
@@ -4,5 +4,8 @@
 #
 # @within function asset:effect/0210.fading_speed/_/given
 
+# 初期化
+    function asset:effect/0210.fading_speed/init/
+
 # 補正を付与する
     function asset:effect/0210.fading_speed/modifier/add
diff --git a/Asset/data/asset/functions/effect/0210.fading_speed/init/.mcfunction b/Asset/data/asset/functions/effect/0210.fading_speed/init/.mcfunction
new file mode 100644
index 0000000000..f6518c6bd0
--- /dev/null
+++ b/Asset/data/asset/functions/effect/0210.fading_speed/init/.mcfunction
@@ -0,0 +1,10 @@
+#> asset:effect/0210.fading_speed/init/
+#
+#
+#
+# @within function
+#   asset:effect/0210.fading_speed/given/
+#   asset:effect/0210.fading_speed/re-given/
+
+# Durationをそのままフィールドに入れておく
+    data modify storage asset:context this.Duration set from storage asset:context Duration
diff --git a/Asset/data/asset/functions/effect/0210.fading_speed/load.mcfunction b/Asset/data/asset/functions/effect/0210.fading_speed/load.mcfunction
deleted file mode 100644
index 2c16b57e78..0000000000
--- a/Asset/data/asset/functions/effect/0210.fading_speed/load.mcfunction
+++ /dev/null
@@ -1,10 +0,0 @@
-#> asset:effect/0210.fading_speed/load
-#
-# Effectに利用するスコアボード等の初期化処理
-# ※ExtendsSafeを有効化した状態での使用は非推奨です
-#
-# @within tag/function asset:effect/load
-
-#> 定義類はここに
-# @within function asset:effect/0210.fading_speed/**
-    scoreboard objectives add 5U.Tick dummy
diff --git a/Asset/data/asset/functions/effect/0210.fading_speed/modifier/add.m.mcfunction b/Asset/data/asset/functions/effect/0210.fading_speed/modifier/add.m.mcfunction
new file mode 100644
index 0000000000..51a681928e
--- /dev/null
+++ b/Asset/data/asset/functions/effect/0210.fading_speed/modifier/add.m.mcfunction
@@ -0,0 +1,8 @@
+#> asset:effect/0210.fading_speed/modifier/add.m
+#
+#
+#
+# @within function asset:effect/0210.fading_speed/modifier/add
+
+#
+    $attribute @s generic.movement_speed modifier add 00000001-0000-0003-0000-00d200000000 "210.FadingSpeed" $(Amount) multiply
diff --git a/Asset/data/asset/functions/effect/0210.fading_speed/modifier/add.mcfunction b/Asset/data/asset/functions/effect/0210.fading_speed/modifier/add.mcfunction
index 6473ecdcc9..6f5c63a3cc 100644
--- a/Asset/data/asset/functions/effect/0210.fading_speed/modifier/add.mcfunction
+++ b/Asset/data/asset/functions/effect/0210.fading_speed/modifier/add.mcfunction
@@ -5,6 +5,23 @@
 # @within function
 #   asset:effect/0210.fading_speed/given/
 #   asset:effect/0210.fading_speed/re-given/
+#   asset:effect/0210.fading_speed/tick/reduce_stack
 
-# 移動速度+80%
-    attribute @s generic.movement_speed modifier add 00000001-0000-0003-0000-00d200000000 "210.FadingSpeed" 0.8 multiply
+#> Private
+# @private
+    #declare score_holder $Stack
+    #declare score_holder $Amount
+
+# そもそもStackが1なら補正を付ける意味がないのでreturn
+    execute if data storage asset:context {Stack:1} run return fail
+
+# 移動速度を((Stack - 1) * Amount)% 得る
+    execute store result score $Stack Temporary run data get storage asset:context Stack 0.9999999999
+    execute store result score $Amount Temporary run data get storage asset:context this.Amount 100
+    execute store result storage asset:temp Args.Amount float 0.01 run scoreboard players operation $Stack Temporary *= $Amount Temporary
+    function asset:effect/0210.fading_speed/modifier/add.m with storage asset:temp Args
+
+# リセット
+    scoreboard players reset $Stack Temporary
+    scoreboard players reset $Amount Temporary
+    data remove storage asset:temp Args
diff --git a/Asset/data/asset/functions/effect/0210.fading_speed/modifier/remove.mcfunction b/Asset/data/asset/functions/effect/0210.fading_speed/modifier/remove.mcfunction
index ca07ac4be1..ad25ee4a3f 100644
--- a/Asset/data/asset/functions/effect/0210.fading_speed/modifier/remove.mcfunction
+++ b/Asset/data/asset/functions/effect/0210.fading_speed/modifier/remove.mcfunction
@@ -6,9 +6,7 @@
 #   asset:effect/0210.fading_speed/end/
 #   asset:effect/0210.fading_speed/re-given/
 #   asset:effect/0210.fading_speed/remove/
+#   asset:effect/0210.fading_speed/tick/reduce_stack
 
 # 移動速度バフを削除
     attribute @s generic.movement_speed modifier remove 00000001-0000-0003-0000-00d200000000
-
-# ついでにスコアもリセット
-    scoreboard players reset @s 5U.Tick 
diff --git a/Asset/data/asset/functions/effect/0210.fading_speed/re-given/.mcfunction b/Asset/data/asset/functions/effect/0210.fading_speed/re-given/.mcfunction
index d89024d21c..212fdec22c 100644
--- a/Asset/data/asset/functions/effect/0210.fading_speed/re-given/.mcfunction
+++ b/Asset/data/asset/functions/effect/0210.fading_speed/re-given/.mcfunction
@@ -4,22 +4,8 @@
 #
 # @within function asset:effect/0210.fading_speed/_/re-given
 
-# 演出
-    particle minecraft:dragon_breath ~ ~1 ~ 0.1 0.1 0.1 0.03 100
-    playsound minecraft:entity.evoker.prepare_summon player @a
-
-# 最大体力の20%分の固定ダメージを受ける
-# 5U.Tickが800以上なら50%の割合ダメージに変化
-    execute store result storage api: Argument.Damage double 0.2 run attribute @s generic.max_health get
-    execute if entity @s[scores={5U.Tick=800..}] store result storage api: Argument.Damage double 0.5 run attribute @s generic.max_health get
-    data modify storage api: Argument.AttackType set value "Physical"
-    data modify storage api: Argument.FixedDamage set value true
-    data modify storage api: Argument.DeathMessage append value '[{"translate": "%1$sは速度の代償を払った","with":[{"selector":"@s"},{"nbt":"Return.AttackerName","storage":"lib:","interpret":true}]}]'
-    function api:damage/
-    function api:damage/reset
-
-# スコアを初期化
-    scoreboard players reset @s 5U.Tick
+# 初期化
+    function asset:effect/0210.fading_speed/init/
 
 # 補正を削除
     function asset:effect/0210.fading_speed/modifier/remove
diff --git a/Asset/data/asset/functions/effect/0210.fading_speed/register.mcfunction b/Asset/data/asset/functions/effect/0210.fading_speed/register.mcfunction
index 59707947b7..65385c577d 100644
--- a/Asset/data/asset/functions/effect/0210.fading_speed/register.mcfunction
+++ b/Asset/data/asset/functions/effect/0210.fading_speed/register.mcfunction
@@ -13,17 +13,17 @@
 # 説明文 (TextComponentString[])
     data modify storage asset:effect Description set value ['{"text":"移動速度が極端に上昇するが、徐々に低下していく"}']
 # 効果時間 (int) (default = API || error)
-    data modify storage asset:effect Duration set value 1000
+    # data modify storage asset:effect Duration set value 200
 # スタック (int) (default = API || 1)
-    data modify storage asset:effect Stack set value 1
+    # data modify storage asset:effect Stack set value 5
 # 効果時間の操作方法 (default = API || "replace")
-    # data modify storage asset:effect DurationOperation set value
+    data modify storage asset:effect DurationOperation set value "forceReplace"
 # スタックの操作方法 (default = API || "replace")
-    # data modify storage asset:effect StackOperation set value
+    data modify storage asset:effect StackOperation set value "forceReplace"
 # 最大効果時間 (int) (default = 2147483647)
     # data modify storage asset:effect MaxDuration set value
 # 最大スタック (int) (default = 2147483647)
-    data modify storage asset:effect MaxStack set value 1
+    # data modify storage asset:effect MaxStack set value 1
 # 悪い効果か否か (boolean)
     data modify storage asset:effect IsBadEffect set value false
 # 死亡時のエフェクトの処理 (default = "remove")
@@ -33,7 +33,9 @@
 # エフェクトをUIに表示するか (boolean) (default = true)
     # data modify storage asset:effect Visible set value
 # エフェクトのスタックををUIに表示するか (boolean) (default = true)
-    data modify storage asset:effect StackVisible set value false
+    # data modify storage asset:effect StackVisible set value false
 
 # フィールド
-    # data modify storage asset:effect Field set value {}
+    data modify storage asset:effect Field.Amount set value 0.2
+    data modify storage asset:effect Field.Debuff.Duration set value 400
+    data modify storage asset:effect Field.Debuff.Amount set value -0.2
diff --git a/Asset/data/asset/functions/effect/0210.fading_speed/tick/.mcfunction b/Asset/data/asset/functions/effect/0210.fading_speed/tick/.mcfunction
index 0394505e2c..9da3e7c474 100644
--- a/Asset/data/asset/functions/effect/0210.fading_speed/tick/.mcfunction
+++ b/Asset/data/asset/functions/effect/0210.fading_speed/tick/.mcfunction
@@ -4,20 +4,5 @@
 #
 # @within function asset:effect/0210.fading_speed/_/tick
 
-# スコア
-    scoreboard players add @s 5U.Tick 1
-
-# 初期速度 +80%
-# 200tick経過するごとに移動速度-20%
-#   0 - 199 80%
-# 200 - 399 60%
-# 400 - 599 40%
-# 600 - 799 20%
-# 800 - 999  0%
-    execute if entity @s[scores={5U.Tick=200}] run attribute @s generic.movement_speed modifier remove 00000001-0000-0003-0000-00d200000000
-    execute if entity @s[scores={5U.Tick=200}] run attribute @s generic.movement_speed modifier add 00000001-0000-0003-0000-00d200000000 "210.FadingSpeed" 0.6 multiply
-    execute if entity @s[scores={5U.Tick=400}] run attribute @s generic.movement_speed modifier remove 00000001-0000-0003-0000-00d200000000
-    execute if entity @s[scores={5U.Tick=400}] run attribute @s generic.movement_speed modifier add 00000001-0000-0003-0000-00d200000000 "210.FadingSpeed" 0.4 multiply
-    execute if entity @s[scores={5U.Tick=600}] run attribute @s generic.movement_speed modifier remove 00000001-0000-0003-0000-00d200000000
-    execute if entity @s[scores={5U.Tick=600}] run attribute @s generic.movement_speed modifier add 00000001-0000-0003-0000-00d200000000 "210.FadingSpeed" 0.2 multiply
-    execute if entity @s[scores={5U.Tick=800}] run attribute @s generic.movement_speed modifier remove 00000001-0000-0003-0000-00d200000000
+# 効果時間が1になるごとにスタックを1下げる
+    execute if data storage asset:context {Duration:1} run function asset:effect/0210.fading_speed/tick/reduce_stack
diff --git a/Asset/data/asset/functions/effect/0210.fading_speed/tick/reduce_stack.mcfunction b/Asset/data/asset/functions/effect/0210.fading_speed/tick/reduce_stack.mcfunction
new file mode 100644
index 0000000000..5e6dcdebc9
--- /dev/null
+++ b/Asset/data/asset/functions/effect/0210.fading_speed/tick/reduce_stack.mcfunction
@@ -0,0 +1,18 @@
+#> asset:effect/0210.fading_speed/tick/reduce_stack
+#
+#
+#
+# @within function asset:effect/0210.fading_speed/tick/
+
+# スタックが1ならreturn
+    execute if data storage asset:context {Stack:1} run return fail
+
+# スタックを1減らす
+    execute store result storage asset:context Stack int 0.9999999999 run data get storage asset:context Stack
+
+# 補正を更新
+    function asset:effect/0210.fading_speed/modifier/remove
+    function asset:effect/0210.fading_speed/modifier/add
+
+# 効果時間を元に戻す
+    data modify storage asset:context Duration set from storage asset:context this.Duration
diff --git a/Asset/data/asset/functions/effect/0211.fading_speed/modifier/add.m.mcfunction b/Asset/data/asset/functions/effect/0211.fading_speed/modifier/add.m.mcfunction
new file mode 100644
index 0000000000..b57aa05d2b
--- /dev/null
+++ b/Asset/data/asset/functions/effect/0211.fading_speed/modifier/add.m.mcfunction
@@ -0,0 +1,7 @@
+#> asset:effect/0211.fading_speed/modifier/add.m
+#
+#
+#
+# @within function asset:effect/0211.fading_speed/modifier/add
+
+    $attribute @s generic.movement_speed modifier add 00000001-0000-0003-0000-00d300000000 "211.fading_speed" $(Amount) multiply
diff --git a/Asset/data/asset/functions/effect/0211.fading_speed/modifier/add.mcfunction b/Asset/data/asset/functions/effect/0211.fading_speed/modifier/add.mcfunction
index ad32fb6bdd..6099133f6f 100644
--- a/Asset/data/asset/functions/effect/0211.fading_speed/modifier/add.mcfunction
+++ b/Asset/data/asset/functions/effect/0211.fading_speed/modifier/add.mcfunction
@@ -4,6 +4,5 @@
 #
 # @within function asset:effect/0211.fading_speed/given/
 
-# 移動速度低下-20%
-    attribute @s generic.movement_speed modifier add 00000001-0000-0003-0000-00d300000000 "211.fading_speed" -0.2 multiply
-
+# 移動速度低下
+    function asset:effect/0211.fading_speed/modifier/add.m with storage asset:context this
diff --git a/Asset/data/asset/functions/effect/0211.fading_speed/register.mcfunction b/Asset/data/asset/functions/effect/0211.fading_speed/register.mcfunction
index 386f93b8bf..a2eeb9ae22 100644
--- a/Asset/data/asset/functions/effect/0211.fading_speed/register.mcfunction
+++ b/Asset/data/asset/functions/effect/0211.fading_speed/register.mcfunction
@@ -13,7 +13,7 @@
 # 説明文 (TextComponentString[])
     data modify storage asset:effect Description set value ['{"text":"移動速度が大きく低下する"}']
 # 効果時間 (int) (default = API || error)
-    data modify storage asset:effect Duration set value 400
+    # data modify storage asset:effect Duration set value 400
 # スタック (int) (default = API || 1)
     data modify storage asset:effect Stack set value 1
 # 効果時間の操作方法 (default = API || "replace")
diff --git a/Asset/data/asset/tags/functions/effect/load.json b/Asset/data/asset/tags/functions/effect/load.json
index 6fe4e83f31..45971e08a5 100644
--- a/Asset/data/asset/tags/functions/effect/load.json
+++ b/Asset/data/asset/tags/functions/effect/load.json
@@ -7,7 +7,6 @@
         "asset:effect/0191.night_vision/load",
         "asset:effect/0605.aurora_corrosion/load",
         "asset:effect/0601.conviction/load",
-        "asset:effect/0210.fading_speed/load",
         "asset:effect/0603.domination/load",
         "asset:effect/0258.spirit_melody/load"
     ]