diff --git a/image/photo/skill/quest.png b/image/photo/skill/quest.png
new file mode 100644
index 00000000..5913400d
Binary files /dev/null and b/image/photo/skill/quest.png differ
diff --git a/lua/core/skill.lua b/lua/core/skill.lua
index 48aaaef1..b6441a4e 100644
--- a/lua/core/skill.lua
+++ b/lua/core/skill.lua
@@ -37,6 +37,7 @@ function Skill:initialize(name, frequency)
   self.frequency = frequency
   self.visible = true
   self.lordSkill = false
+  self.cardSkill = false
   self.mute = false
   self.anim_type = ""
   self.related_skills = {}
@@ -78,6 +79,10 @@ end
 ---@param player Player @ 玩家
 ---@return boolean
 function Skill:isEffectable(player)
+  if self.cardSkill then
+    return true
+  end
+
   local nullifySkills = Fk:currentRoom().status_skills[InvaliditySkill] or {}
   for _, nullifySkill in ipairs(nullifySkills) do
     if self.name ~= nullifySkill.name and nullifySkill:getInvalidity(player, self) then
diff --git a/lua/core/skill_type/active.lua b/lua/core/skill_type/active.lua
index ad717298..7fc0a689 100644
--- a/lua/core/skill_type/active.lua
+++ b/lua/core/skill_type/active.lua
@@ -28,7 +28,7 @@ end
 ---@param player Player
 ---@param card Card @ helper
 function ActiveSkill:canUse(player, card)
-  return true
+  return self:isEffectable(player)
 end
 
 --- Determine whether a card can be selected by this skill
diff --git a/lua/fk_ex.lua b/lua/fk_ex.lua
index 382a2cf4..dc3cb77b 100644
--- a/lua/fk_ex.lua
+++ b/lua/fk_ex.lua
@@ -426,6 +426,7 @@ end
 
 local function readCardSpecToCard(card, spec)
   card.skill = spec.skill or defaultCardSkill
+  card.skill.cardSkill = true
   card.special_skills = spec.special_skills
   card.is_damage_card = spec.is_damage_card
 end
diff --git a/lua/server/events/hp.lua b/lua/server/events/hp.lua
index 5bb04226..20545226 100644
--- a/lua/server/events/hp.lua
+++ b/lua/server/events/hp.lua
@@ -148,6 +148,11 @@ GameEvent.functions[GameEvent.Damage] = function(self)
     end
   end
 
+  if damageStruct.damageType ~= fk.NormalDamage and damageStruct.to.chained then
+    damageStruct.beginnerOfTheDamage = true
+    damageStruct.to:setChainState(false)
+  end
+
   -- 先扣减护甲，再扣体力值
   local shield_to_lose = math.min(damageStruct.damage, damageStruct.to.shield)
   self:changeShield(damageStruct.to, -shield_to_lose)
@@ -179,6 +184,29 @@ GameEvent.functions[GameEvent.Damage] = function(self)
   return true
 end
 
+GameEvent.exit_funcs[GameEvent.Damage] = function(self)
+  local room = self.room
+  local damageStruct = self.data[1]
+
+  room.logic:trigger(fk.DamageFinished, damageStruct.to, damageStruct)
+
+  if damageStruct.beginnerOfTheDamage and not damageStruct.chain then
+    local targets = table.filter(room:getAlivePlayers(), function(p)
+      return p.chained
+    end)
+    for _, p in ipairs(targets) do
+      room:sendLog{
+        type = "#ChainDamage",
+        from = p.id
+      }
+      local dmg = table.simpleClone(damageStruct)
+      dmg.to = p
+      dmg.chain = true
+      room:damage(dmg)
+    end
+  end
+end
+
 GameEvent.functions[GameEvent.LoseHp] = function(self)
   local player, num, skillName = table.unpack(self.data)
   local self = self.room
diff --git a/lua/server/events/usecard.lua b/lua/server/events/usecard.lua
index a64ded72..71689e98 100644
--- a/lua/server/events/usecard.lua
+++ b/lua/server/events/usecard.lua
@@ -205,7 +205,7 @@ GameEvent.functions[GameEvent.UseCard] = function(self)
 
   if cardUseEvent.responseToEvent then
     cardUseEvent.responseToEvent.cardsResponded = cardUseEvent.responseToEvent.cardsResponded or {}
-    table.insert(cardUseEvent.responseToEvent.cardsResponded, cardUseEvent.card)
+    table.insertIfNeed(cardUseEvent.responseToEvent.cardsResponded, cardUseEvent.card)
   end
 
   for _, event in ipairs({ fk.AfterCardUseDeclared, fk.AfterCardTargetDeclared, fk.CardUsing }) do
diff --git a/lua/server/mark_enum.lua b/lua/server/mark_enum.lua
index 573b3d5c..4118b69b 100644
--- a/lua/server/mark_enum.lua
+++ b/lua/server/mark_enum.lua
@@ -18,3 +18,6 @@ MarkEnum.AddMaxCardsInTurn = "AddMaxCards-turn"
 MarkEnum.MinusMaxCards = "MinusMaxCards"
 ---@field AddMaxCards string @ 于本回合内减少标记值数量的手牌上限
 MarkEnum.MinusMaxCardsInTurn = "MinusMaxCards-turn"
+
+---@field uncompulsoryInvalidity string @ 非锁定技失效，可带清除标记后缀
+MarkEnum.UncompulsoryInvalidity = "uncompulsoryInvalidity"
diff --git a/lua/server/room.lua b/lua/server/room.lua
index 50df3efa..9c7702f1 100644
--- a/lua/server/room.lua
+++ b/lua/server/room.lua
@@ -2041,7 +2041,7 @@ function Room:doCardUseEffect(cardUseEvent)
     unoffsetableList = cardUseEvent.unoffsetableList,
     additionalDamage = cardUseEvent.additionalDamage,
     additionalRecover = cardUseEvent.additionalRecover,
-    cardIdsResponded = cardUseEvent.nullifiedTargets,
+    cardsResponded = cardUseEvent.cardsResponded,
     prohibitedCardNames = cardUseEvent.prohibitedCardNames,
     extra_data = cardUseEvent.extra_data,
   }
@@ -2092,7 +2092,15 @@ function Room:doCardUseEffect(cardUseEvent)
 
         collaboratorsIndex[toId] = collaboratorsIndex[toId] + 1
 
-        self:doCardEffect(table.simpleClone(cardEffectEvent))
+        local curCardEffectEvent = table.simpleClone(cardEffectEvent)
+        self:doCardEffect(curCardEffectEvent)
+
+        if curCardEffectEvent.cardsResponded then
+          cardUseEvent.cardsResponded = cardUseEvent.cardsResponded or {}
+          for _, card in ipairs(curCardEffectEvent.cardsResponded) do
+            table.insertIfNeed(cardUseEvent.cardsResponded, card)
+          end
+        end
       end
     end
   end
@@ -2816,6 +2824,10 @@ function Room:getCardsFromPileByRule(pattern, num, fromPile)
     table.insertTable(pileToSearch, self.discard_pile)
   end
 
+  if #pileToSearch == 0 then
+    return {}
+  end
+
   local cardPack = {}
   if num < 3 then
     for i = 1, num do
diff --git a/packages/maneuvering/init.lua b/packages/maneuvering/init.lua
index e874e92e..1a541e4d 100644
--- a/packages/maneuvering/init.lua
+++ b/packages/maneuvering/init.lua
@@ -158,42 +158,6 @@ extension:addCards({
   analeptic:clone(Card.Diamond, 9),
 })
 
-local ironChainEffect = fk.CreateTriggerSkill{
-  name = "iron_chain_effect",
-  global = true,
-  priority = { [fk.BeforeHpChanged] = 10, [fk.DamageFinished] = 0 }, -- game rule
-  events = { fk.BeforeHpChanged, fk.DamageFinished },
-  can_trigger = function(self, event, target, player, data)
-    if event == fk.BeforeHpChanged then
-      return target == player and data.damageEvent and data.damageEvent.damageType ~= fk.NormalDamage and player.chained
-    else
-      return target == player and data.beginnerOfTheDamage and not data.chain
-    end
-  end,
-  on_trigger = function(self, event, target, player, data)
-    local room = player.room
-    if event == fk.BeforeHpChanged then
-      data.damageEvent.beginnerOfTheDamage = true
-      player:setChainState(false)
-    else
-      local targets = table.filter(room:getAlivePlayers(), function(p)
-        return p.chained
-      end)
-      for _, p in ipairs(targets) do
-        room:sendLog{
-          type = "#ChainDamage",
-          from = p.id
-        }
-        local dmg = table.simpleClone(data)
-        dmg.to = p
-        dmg.chain = true
-        room:damage(dmg)
-      end
-    end
-  end,
-}
-Fk:addSkill(ironChainEffect)
-
 local recast = fk.CreateActiveSkill{
   name = "recast",
   target_num = 0,
diff --git a/packages/standard/aux_skills.lua b/packages/standard/aux_skills.lua
index e62fb86b..6c106476 100644
--- a/packages/standard/aux_skills.lua
+++ b/packages/standard/aux_skills.lua
@@ -106,10 +106,28 @@ local choosePlayersToMoveCardInBoardSkill = fk.CreateActiveSkill{
   end,
 }
 
+local uncompulsoryInvalidity = fk.CreateInvaliditySkill {
+  name = "uncompulsory_invalidity",
+  global = true,
+  invalidity_func = function(self, from, skill)
+    local suffix = { "-phase", "-turn", "-round" }
+    return
+      (skill.frequency ~= Skill.Compulsory and skill.frequency ~= Skill.Wake) and
+      not (skill:isEquipmentSkill() or skill.name:endsWith("&")) and
+      (
+        from:getMark(MarkEnum.UncompulsoryInvalidity) ~= 0 or
+        table.find(suffix, function(s)
+          return from:getMark(MarkEnum.UncompulsoryInvalidity .. s) ~= 0
+        end)
+      )
+  end
+}
+
 AuxSkills = {
   discardSkill,
   chooseCardsSkill,
   choosePlayersSkill,
   maxCardsSkill,
   choosePlayersToMoveCardInBoardSkill,
+  uncompulsoryInvalidity,
 }
diff --git a/packages/standard/init.lua b/packages/standard/init.lua
index 3332fbf1..a2867304 100644
--- a/packages/standard/init.lua
+++ b/packages/standard/init.lua
@@ -560,6 +560,7 @@ local kongchengAudio = fk.CreateTriggerSkill{
 }
 local kongcheng = fk.CreateProhibitSkill{
   name = "kongcheng",
+  frequency = Skill.Compulsory,
   is_prohibited = function(self, from, to, card)
     if to:hasSkill(self.name) and to:isKongcheng() then
       return card.trueName == "slash" or card.name == "duel"
@@ -608,6 +609,7 @@ zhaoyun:addSkill(longdan)
 
 local mashu = fk.CreateDistanceSkill{
   name = "mashu",
+  frequency = Skill.Compulsory,
   correct_func = function(self, from, to)
     if from:hasSkill(self.name) then
       return -1
@@ -654,6 +656,7 @@ local jizhi = fk.CreateTriggerSkill{
 }
 local qicai = fk.CreateTargetModSkill{
   name = "qicai",
+  frequency = Skill.Compulsory,
   distance_limit_func =  function(self, player, skill)
     local card_name = string.sub(skill.name, 1, -7) -- assuming all card skill is named with name_skill
     local card = Fk:cloneCard(card_name)
@@ -879,6 +882,7 @@ daqiao:addSkill(liuli)
 
 local qianxun = fk.CreateProhibitSkill{
   name = "qianxun",
+  frequency = Skill.Compulsory,
   is_prohibited = function(self, from, to, card)
     if to:hasSkill(self.name) then
       return card.name == "indulgence" or card.name == "snatch"
diff --git a/packages/standard_cards/init.lua b/packages/standard_cards/init.lua
index 6271452a..760b1781 100644
--- a/packages/standard_cards/init.lua
+++ b/packages/standard_cards/init.lua
@@ -780,7 +780,7 @@ extension:addCards({
 fk.MarkArmorNullified = "mark__armor_nullified"
 
 local armorInvalidity = fk.CreateInvaliditySkill {
-  name = "armor_invalidity_skill",
+  name = "armor_invalidity",
   global = true,
   invalidity_func = function(self, from, skill)
     return