diff --git a/Fk/Pages/Lobby.qml b/Fk/Pages/Lobby.qml
index 7d4fd364..317acfdd 100644
--- a/Fk/Pages/Lobby.qml
+++ b/Fk/Pages/Lobby.qml
@@ -139,7 +139,7 @@ Item {
         Text {
           width: parent.width
           horizontalAlignment: Text.AlignHCenter
-          text: Backend.translate("Room List")
+          text: Backend.translate("Room List").arg(roomModel.count)
         }
         ListView {
           id: roomList
diff --git a/Fk/Pages/Room.qml b/Fk/Pages/Room.qml
index a8622381..0194157f 100644
--- a/Fk/Pages/Room.qml
+++ b/Fk/Pages/Room.qml
@@ -59,7 +59,7 @@ Item {
     id: bgm
     source: config.bgmFile
 
-    // loops: MediaPlayer.Infinite
+    loops: MediaPlayer.Infinite
     onPlaybackStateChanged: {
       if (playbackState == MediaPlayer.StoppedState && roomScene.isStarted)
         play();
diff --git a/Fk/Pages/RoomLogic.js b/Fk/Pages/RoomLogic.js
index 35bb4c5c..03c32b55 100644
--- a/Fk/Pages/RoomLogic.js
+++ b/Fk/Pages/RoomLogic.js
@@ -1070,6 +1070,31 @@ callbacks["AskForCardsChosen"] = (jsonData) => {
   });
 }
 
+callbacks["AskForPoxi"] = (jsonData) => {
+  const { type, data } = JSON.parse(jsonData);
+
+  roomScene.state = "replying";
+  roomScene.popupBox.sourceComponent = Qt.createComponent("../RoomElement/PoxiBox.qml");
+  const box = roomScene.popupBox.item;
+  box.poxi_type = type;
+  box.card_data = data;
+  for (let d of data) {
+    const arr = [];
+    const ids = d[1];
+
+    ids.forEach(id => {
+      const card_data = JSON.parse(Backend.callLuaFunction("GetCardData", [id]));
+      arr.push(card_data);
+    });
+    box.addCustomCards(d[0], arr);
+  }
+
+  roomScene.popupBox.moveToCenter();
+  box.cardsSelected.connect((ids) => {
+    replyToServer(JSON.stringify(ids));
+  });
+}
+
 callbacks["AskForMoveCardInBoard"] = (jsonData) => {
   const data = JSON.parse(jsonData);
   const { cards, cardsPosition, generalNames, playerIds } = data;
diff --git a/Fk/PhotoElement/MarkArea.qml b/Fk/PhotoElement/MarkArea.qml
index ebf98e67..adda007c 100644
--- a/Fk/PhotoElement/MarkArea.qml
+++ b/Fk/PhotoElement/MarkArea.qml
@@ -62,7 +62,12 @@ Item {
           }
 
           if (mark_name.startsWith('@$')) {
-            params.cardNames = mark_extra.split(',');
+            let data = mark_extra.split(',');
+            if (!Object.is(parseInt(data[0]), NaN)) {
+              params.ids = data.map(s => parseInt(s));
+            } else {
+              params.cardNames = data;
+            }
           } else {
             let data = JSON.parse(Backend.callLuaFunction("GetPile", [root.parent.playerid, mark_name]));
             data = data.filter((e) => e !== -1);
diff --git a/Fk/RoomElement/CardItem.qml b/Fk/RoomElement/CardItem.qml
index c41d789a..d74ea8d3 100644
--- a/Fk/RoomElement/CardItem.qml
+++ b/Fk/RoomElement/CardItem.qml
@@ -31,11 +31,13 @@ Item {
   property string color: ""  // only use when suit is empty
   property string footnote: ""  // footnote, e.g. "A use card to B"
   property bool footnoteVisible: false
+  property string prohibitReason: ""
   property bool known: true     // if false it only show a card back
   property bool enabled: true   // if false the card will be grey
   property alias card: cardItem
   property alias glow: glowItem
   property var mark: ({})
+  property alias chosenInBox: chosen.visible
 
   function getColor() {
     if (suit != "")
@@ -88,6 +90,7 @@ Item {
     visible: false
   }
 
+
   Image {
     id: cardItem
     source: known ? SkinBank.getCardPicture(cid || name)
@@ -217,6 +220,15 @@ Item {
     }
   }
 
+  Image {
+    id: chosen
+    visible: false
+    source: SkinBank.CARD_DIR + "chosen"
+    anchors.horizontalCenter: parent.horizontalCenter
+    y: 90
+    scale: 1.25
+  }
+
   Rectangle {
     visible: !root.selectable
     anchors.fill: parent
@@ -224,6 +236,24 @@ Item {
     opacity: 0.7
   }
 
+  Text {
+    id: prohibitText
+    visible: !root.selectable
+    anchors.centerIn: parent
+    font.family: fontLibian.name
+    font.pixelSize: 18
+    opacity: 0.9
+    horizontalAlignment: Text.AlignHCenter
+    lineHeight: 18
+    lineHeightMode: Text.FixedHeight
+    color: "snow"
+    width: 20
+    wrapMode: Text.WrapAnywhere
+    style: Text.Outline
+    styleColor: "red"
+    text: prohibitReason
+  }
+
   TapHandler {
     acceptedButtons: Qt.LeftButton | Qt.RightButton | Qt.NoButton
     gesturePolicy: TapHandler.WithinBounds
diff --git a/Fk/RoomElement/Dashboard.qml b/Fk/RoomElement/Dashboard.qml
index 2158a9eb..09faeb03 100644
--- a/Fk/RoomElement/Dashboard.qml
+++ b/Fk/RoomElement/Dashboard.qml
@@ -166,17 +166,35 @@ RowLayout {
       const ids = [];
       let cards = handcardAreaItem.cards;
       for (let i = 0; i < cards.length; i++) {
+        cards[i].prohibitReason = "";
         if (cardValid(cards[i].cid, cname)) {
           ids.push(cards[i].cid);
+        } else {
+          const prohibitReason = Backend.callLuaFunction(
+            "GetCardProhibitReason",
+            [cards[i].cid, roomScene.respond_play ? "response" : "use", cname]
+          );
+          if (prohibitReason) {
+            cards[i].prohibitReason = prohibitReason;
+          }
         }
       }
       cards = self.equipArea.getAllCards();
       cards.forEach(c => {
+        c.prohibitReason = "";
         if (cardValid(c.cid, cname)) {
           ids.push(c.cid);
           if (!expanded_piles["_equip"]) {
             expandPile("_equip");
           }
+        } else {
+          const prohibitReason = Backend.callLuaFunction(
+            "GetCardProhibitReason",
+            [c.cid, roomScene.respond_play ? "response" : "use", cname]
+          );
+          if (prohibitReason) {
+            c.prohibitReason = prohibitReason;
+          }
         }
       });
 
@@ -202,6 +220,7 @@ RowLayout {
 
     const ids = [], cards = handcardAreaItem.cards;
     for (let i = 0; i < cards.length; i++) {
+      cards[i].prohibitReason = "";
       if (JSON.parse(Backend.callLuaFunction("CanUseCard", [cards[i].cid, Self.id]))) {
         ids.push(cards[i].cid);
       } else {
@@ -214,6 +233,14 @@ RowLayout {
             break;
           }
         }
+
+        // still cannot use? show message on card
+        if (!ids.includes(cards[i].cid)) {
+          const prohibitReason = Backend.callLuaFunction("GetCardProhibitReason", [cards[i].cid, "play"]);
+          if (prohibitReason) {
+            cards[i].prohibitReason = prohibitReason;
+          }
+        }
       }
     }
     handcardAreaItem.enableCards(ids)
@@ -372,6 +399,11 @@ RowLayout {
       item.enabled = item.pressed;
     }
 
+    const cards = handcardAreaItem.cards;
+    for (let i = 0; i < cards.length; i++) {
+      cards[i].prohibitReason = "";
+    }
+
     updatePending();
   }
 
diff --git a/Fk/RoomElement/HandcardArea.qml b/Fk/RoomElement/HandcardArea.qml
index 3b282ff1..2d96bea1 100644
--- a/Fk/RoomElement/HandcardArea.qml
+++ b/Fk/RoomElement/HandcardArea.qml
@@ -48,6 +48,7 @@ Item {
       card.selectable = false;
       card.showDetail = false;
       card.selectedChanged.disconnect(adjustCards);
+      card.prohibitReason = "";
     }
     return result;
   }
diff --git a/Fk/RoomElement/PlayerCardBox.qml b/Fk/RoomElement/PlayerCardBox.qml
index d6554702..e9d4a5bf 100644
--- a/Fk/RoomElement/PlayerCardBox.qml
+++ b/Fk/RoomElement/PlayerCardBox.qml
@@ -78,10 +78,10 @@ GraphicsBox {
             }
             onSelectedChanged: {
               if (selected) {
-                virt_name = "$Selected";
+                chosenInBox = true;
                 root.selected_ids.push(cid);
               } else {
-                virt_name = "";
+                chosenInBox = false;
                 root.selected_ids.splice(root.selected_ids.indexOf(cid), 1);
               }
               root.selected_ids = root.selected_ids;
@@ -122,38 +122,6 @@ GraphicsBox {
     return ret;
   }
 
-  function addHandcards(cards) {
-    let handcards = findAreaModel('$Hand').areaCards;
-    if (cards instanceof Array) {
-      for (let i = 0; i < cards.length; i++)
-        handcards.append(cards[i]);
-    } else {
-      handcards.append(cards);
-    }
-  }
-
-  function addEquips(cards)
-  {
-    let equips = findAreaModel('$Equip').areaCards;
-    if (cards instanceof Array) {
-      for (let i = 0; i < cards.length; i++)
-        equips.append(cards[i]);
-    } else {
-      equips.append(cards);
-    }
-  }
-
-  function addDelayedTricks(cards)
-  {
-    let delayedTricks = findAreaModel('$Judge').areaCards;
-    if (cards instanceof Array) {
-      for (let i = 0; i < cards.length; i++)
-        delayedTricks.append(cards[i]);
-    } else {
-      delayedTricks.append(cards);
-    }
-  }
-
   function addCustomCards(name, cards) {
     let area = findAreaModel(name).areaCards;
     if (cards instanceof Array) {
diff --git a/Fk/RoomElement/PoxiBox.qml b/Fk/RoomElement/PoxiBox.qml
new file mode 100644
index 00000000..1f30c8c1
--- /dev/null
+++ b/Fk/RoomElement/PoxiBox.qml
@@ -0,0 +1,138 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+import QtQuick
+import QtQuick.Layouts
+import Fk.Pages
+
+GraphicsBox {
+  id: root
+
+  title.text: Backend.callLuaFunction("PoxiPrompt", [poxi_type, card_data])
+
+  // TODO: Adjust the UI design in case there are more than 7 cards
+  width: 70 + 700
+  height: 64 + Math.min(cardView.contentHeight, 400) + 20
+
+  signal cardSelected(int cid)
+  signal cardsSelected(var ids)
+  property var selected_ids: []
+  property string poxi_type
+  property var card_data
+
+  ListModel {
+    id: cardModel
+  }
+
+  ListView {
+    id: cardView
+    anchors.fill: parent
+    anchors.topMargin: 40
+    anchors.leftMargin: 20
+    anchors.rightMargin: 20
+    anchors.bottomMargin: 20
+    spacing: 20
+    model: cardModel
+    clip: true
+
+    delegate: RowLayout {
+      spacing: 15
+      visible: areaCards.count > 0
+
+      Rectangle {
+        border.color: "#A6967A"
+        radius: 5
+        color: "transparent"
+        width: 18
+        height: 130
+        Layout.alignment: Qt.AlignTop
+
+        Text {
+          color: "#E4D5A0"
+          text: Backend.translate(areaName)
+          anchors.fill: parent
+          wrapMode: Text.WrapAnywhere
+          verticalAlignment: Text.AlignVCenter
+          horizontalAlignment: Text.AlignHCenter
+          font.pixelSize: 15
+        }
+      }
+
+      GridLayout {
+        columns: 7
+        Repeater {
+          model: areaCards
+
+          CardItem {
+            cid: model.cid
+            name: model.name || ""
+            suit: model.suit || ""
+            number: model.number || 0
+            autoBack: false
+            known: model.cid !== -1
+            selectable: {
+              return root.selected_ids.includes(model.cid) || JSON.parse(Backend.callLuaFunction(
+                "PoxiFilter",
+                [root.poxi_type, model.cid, root.selected_ids, root.card_data]
+              ));
+            }
+            onSelectedChanged: {
+              if (selected) {
+                chosenInBox = true;
+                root.selected_ids.push(cid);
+              } else {
+                chosenInBox = false;
+                root.selected_ids.splice(root.selected_ids.indexOf(cid), 1);
+              }
+              root.selected_ids = root.selected_ids;
+            }
+          }
+        }
+      }
+    }
+  }
+
+  MetroButton {
+    anchors.bottom: parent.bottom
+    text: Backend.translate("OK")
+    enabled: {
+      return JSON.parse(Backend.callLuaFunction(
+        "PoxiFeasible",
+        [root.poxi_type, root.selected_ids, root.card_data]
+      ));
+    }
+    onClicked: root.cardsSelected(root.selected_ids)
+  }
+
+  onCardSelected: finished();
+
+  function findAreaModel(name) {
+    let ret;
+    for (let i = 0; i < cardModel.count; i++) {
+      let item = cardModel.get(i);
+      if (item.areaName == name) {
+        ret = item;
+        break;
+      }
+    }
+    if (!ret) {
+      ret = {
+        areaName: name,
+        areaCards: [],
+      }
+      cardModel.append(ret);
+      ret = findAreaModel(name);
+    }
+    return ret;
+  }
+
+
+  function addCustomCards(name, cards) {
+    let area = findAreaModel(name).areaCards;
+    if (cards instanceof Array) {
+      for (let i = 0; i < cards.length; i++)
+        area.append(cards[i]);
+    } else {
+      area.append(cards);
+    }
+  }
+}
diff --git a/Fk/RoomElement/SkillButton.qml b/Fk/RoomElement/SkillButton.qml
index 09459869..d7c9c7f7 100644
--- a/Fk/RoomElement/SkillButton.qml
+++ b/Fk/RoomElement/SkillButton.qml
@@ -23,9 +23,17 @@ Item {
     x: -13 - 120 * 0.166
     y: -6 - 55 * 0.166
     scale: 0.66
-    source: type === "notactive" ? ""
-      : AppPath + "/image/button/skill/" + type + "/"
-      + (enabled ? (pressed ? "pressed" : "normal") : "disabled")
+    source: {
+      if (type === "notactive") {
+        return "";
+      }
+      let ret = AppPath + "/image/button/skill/" + type + "/";
+      let suffix = enabled ? (pressed ? "pressed" : "normal") : "disabled";
+      if (enabled && type === "active" && orig.endsWith("&")) {
+        suffix += "-attach";
+      }
+      return ret + suffix;
+    }
   }
 
   Image {
diff --git a/image/button/skill/active/normal-attach.png b/image/button/skill/active/normal-attach.png
new file mode 100644
index 00000000..792d7143
Binary files /dev/null and b/image/button/skill/active/normal-attach.png differ
diff --git a/image/button/skill/active/pressed-attach.png b/image/button/skill/active/pressed-attach.png
new file mode 100644
index 00000000..28ffc10d
Binary files /dev/null and b/image/button/skill/active/pressed-attach.png differ
diff --git a/image/card/chosen.png b/image/card/chosen.png
new file mode 100644
index 00000000..6c9049e6
Binary files /dev/null and b/image/card/chosen.png differ
diff --git a/lua/client/client_util.lua b/lua/client/client_util.lua
index 2ecf8572..e2529057 100644
--- a/lua/client/client_util.lua
+++ b/lua/client/client_util.lua
@@ -684,4 +684,52 @@ function SaveRecord()
   c.client:saveRecord(json.encode(c.record), c.record[2])
 end
 
+function GetCardProhibitReason(cid, method, pattern)
+  local card = Fk:getCardById(cid)
+  if not card then return "" end
+  if method == "play" and not card.skill:canUse(Self, card) then return "" end
+  if method ~= "play" and not card:matchPattern(pattern) then return "" end
+  if method == "play" then method = "use" end
+
+  local status_skills = Fk:currentRoom().status_skills[ProhibitSkill] or Util.DummyTable
+  local s
+  for _, skill in ipairs(status_skills) do
+    local fn = method == "use" and skill.prohibitUse or skill.prohibitResponse
+    if fn(skill, Self, card) then
+      s = skill
+      break
+    end
+  end
+  if not s then return "" end
+
+  -- try to return a translated string
+  local skillName = s.name
+  local ret = Fk:translate(skillName)
+  if ret ~= skillName then
+    -- TODO: translate
+    return ret .. "禁" .. (method == "use" and "使用" or "打出")
+  elseif skillName:endsWith("_prohibit") and skillName:startsWith("#") then
+    return Fk:translate(skillName:sub(2, -10)) .. "禁" .. (method == "use" and "使用" or "打出")
+  end
+end
+
+function PoxiPrompt(poxi_type, data)
+  local poxi = Fk.poxi_methods[poxi_type]
+  if not poxi or not poxi.prompt then return "" end
+  if type(poxi.prompt) == "string" then return Fk:translate(poxi.prompt) end
+  return poxi.prompt(data)
+end
+
+function PoxiFilter(poxi_type, to_select, selected, data)
+  local poxi = Fk.poxi_methods[poxi_type]
+  if not poxi then return "false" end
+  return json.encode(poxi.card_filter(to_select, selected, data))
+end
+
+function PoxiFeasible(poxi_type, selected, data)
+  local poxi = Fk.poxi_methods[poxi_type]
+  if not poxi then return "false" end
+  return json.encode(poxi.feasible(selected, data))
+end
+
 dofile "lua/client/i18n/init.lua"
diff --git a/lua/client/i18n/en_US.lua b/lua/client/i18n/en_US.lua
index 983c4489..13c6ad0e 100644
--- a/lua/client/i18n/en_US.lua
+++ b/lua/client/i18n/en_US.lua
@@ -2,7 +2,7 @@
 
 Fk:loadTranslationTable({
   -- Lobby
-  -- ["Room List"] = "房间列表",
+  ["Room List"] = "Room List (currently have %1 rooms)",
   -- ["Enter"] = "进入",
   -- ["Observe"] = "旁观",
 
diff --git a/lua/client/i18n/zh_CN.lua b/lua/client/i18n/zh_CN.lua
index 14137fb5..5071ee73 100644
--- a/lua/client/i18n/zh_CN.lua
+++ b/lua/client/i18n/zh_CN.lua
@@ -2,7 +2,7 @@
 
 Fk:loadTranslationTable{
   -- Lobby
-  ["Room List"] = "房间列表",
+  ["Room List"] = "房间列表 (共%1个房间)",
   ["Enter"] = "进入",
   ["Observe"] = "旁观",
 
diff --git a/lua/core/engine.lua b/lua/core/engine.lua
index 3cd53dce..ebbb63e6 100644
--- a/lua/core/engine.lua
+++ b/lua/core/engine.lua
@@ -25,6 +25,7 @@
 ---@field public filtered_cards table<integer, Card> @ 被锁视技影响的卡牌
 ---@field public printed_cards table<integer, Card> @ 被某些房间现场打印的卡牌，id都是负数且从-2开始
 ---@field private _custom_events any[] @ 自定义事件列表
+---@field public poxi_methods table<string, PoxiSpec> @ “魄袭”框操作方法表
 local Engine = class("Engine")
 
 --- Engine的构造函数。
@@ -55,6 +56,7 @@ function Engine:initialize()
   self.game_mode_disabled = {}
   self.kingdoms = {}
   self._custom_events = {}
+  self.poxi_methods = {}
 
   self:loadPackages()
   self:loadDisabled()
@@ -334,6 +336,16 @@ function Engine:addGameEvent(name, pfunc, mfunc, cfunc, efunc)
   table.insert(self._custom_events, { name = name, p = pfunc, m = mfunc, c = cfunc, e = efunc })
 end
 
+---@param spec PoxiSpec
+function Engine:addPoxiMethod(spec)
+  assert(type(spec.name) == "string")
+  assert(type(spec.card_filter) == "function")
+  assert(type(spec.feasible) == "function")
+  self.poxi_methods[spec.name] = spec
+  spec.default_choice = spec.default_choice or function() return {} end
+  spec.post_select = spec.post_select or function(s) return s end
+end
+
 --- 从已经开启的拓展包中，随机选出若干名武将。
 ---
 --- 对于同名武将不会重复选取。
diff --git a/lua/fk_ex.lua b/lua/fk_ex.lua
index 5d1882b5..3a1bcf85 100644
--- a/lua/fk_ex.lua
+++ b/lua/fk_ex.lua
@@ -588,3 +588,13 @@ function fk.CreateGameMode(spec)
   end
   return ret
 end
+
+-- other
+
+---@class PoxiSpec
+---@field name string
+---@field card_filter fun(to_select: int, selected: int[], data: any): bool
+---@field feasible fun(selected: int[], data: any): bool
+---@field post_select nil | fun(selected: int[], data: any): int[]
+---@field default_choice nil | fun(data: any): int[]
+---@field prompt nil | string | fun(data: any): string
diff --git a/lua/lsp/freekill.lua b/lua/lsp/freekill.lua
index f5f4ef65..994ce5dc 100644
--- a/lua/lsp/freekill.lua
+++ b/lua/lsp/freekill.lua
@@ -7,6 +7,7 @@
 
 ---@alias null nil
 ---@alias bool boolean | nil
+---@alias int integer
 
 ---@class fk
 ---FreeKill's lua API
diff --git a/lua/server/ai/init.lua b/lua/server/ai/init.lua
index 8426698b..2b150ff8 100644
--- a/lua/server/ai/init.lua
+++ b/lua/server/ai/init.lua
@@ -3,3 +3,25 @@
 AI = require "server.ai.ai"
 TrustAI = require "server.ai.trust_ai"
 RandomAI = require "server.ai.random_ai"
+SmartAI = require "server.ai.smart_ai"
+
+-- load ai module from packages
+local directories = FileIO.ls("packages")
+require "packages.standard.ai"
+require "packages.standard_cards.ai"
+require "packages.maneuvering.ai"
+table.removeOne(directories, "standard")
+table.removeOne(directories, "standard_cards")
+table.removeOne(directories, "maneuvering")
+
+local _disable_packs = json.decode(fk.GetDisabledPacks())
+
+for _, dir in ipairs(directories) do
+  if (not string.find(dir, ".disabled")) and not table.contains(_disable_packs, dir)
+    and FileIO.isDir("packages/" .. dir)
+    and FileIO.exists("packages/" .. dir .. "/ai/init.lua") then
+
+    require(string.format("packages.%s.ai", dir))
+
+  end
+end
diff --git a/lua/server/ai/smart_ai.lua b/lua/server/ai/smart_ai.lua
new file mode 100644
index 00000000..184d439b
--- /dev/null
+++ b/lua/server/ai/smart_ai.lua
@@ -0,0 +1,10 @@
+-- SPDX-License-Identifier: GPL-3.0-or-later
+
+---@class SmartAI: AI
+local SmartAI = AI:subclass("RandomAI")
+
+function SmartAI:initialize(player)
+  AI.initialize(self, player)
+end
+
+return SmartAI
diff --git a/lua/server/gameevent.lua b/lua/server/gameevent.lua
index 61e4cfbe..4c884f96 100644
--- a/lua/server/gameevent.lua
+++ b/lua/server/gameevent.lua
@@ -73,6 +73,13 @@ function GameEvent:addExitFunc(f)
   table.insert(self.extra_exit_funcs, f)
 end
 
+function GameEvent:prependExitFunc(f)
+  if self.extra_exit_funcs == Util.DummyTable then
+    self.extra_exit_funcs = {}
+  end
+  table.insert(self.extra_exit_funcs, 1, f)
+end
+
 function GameEvent:findParent(eventType, includeSelf)
   if includeSelf and self.event == eventType then return self end
   local e = self.parent
diff --git a/lua/server/gamelogic.lua b/lua/server/gamelogic.lua
index 31d0e44a..b0d28f53 100644
--- a/lua/server/gamelogic.lua
+++ b/lua/server/gamelogic.lua
@@ -376,14 +376,14 @@ function GameLogic:trigger(event, target, data, refresh_only)
     end
 
     repeat do
-      local triggerables = table.filter(skills, function(skill)
+      local invoked_skills = {}
+      local filter_func = function(skill)
         return skill.priority_table[event] == prio and
+          not table.contains(invoked_skills, skill) and
           skill:triggerable(event, target, player, data)
-      end)
+      end
 
-      local skill_names = table.map(triggerables, function(skill)
-        return skill.name
-      end)
+      local skill_names = table.map(table.filter(skills, filter_func), Util.NameMapper)
 
       while #skill_names > 0 do
         local skill_name = prio <= 0 and table.random(skill_names) or
@@ -392,23 +392,14 @@ function GameLogic:trigger(event, target, data, refresh_only)
         local skill = skill_name == "game_rule" and GameRule
           or Fk.skills[skill_name]
 
-        local len = #skills
+        table.insert(invoked_skills, skill)
         broken = skill:trigger(event, target, player, data)
-
-        table.insertTable(
-          skill_names,
-          table.map(table.filter(table.slice(skills, len - #skills), function(s)
-            return
-              s.priority_table[event] == prio and
-              s:triggerable(event, target, player, data)
-          end), function(s) return s.name end)
-        )
+        skill_names = table.map(table.filter(skills, filter_func), Util.NameMapper)
 
         broken = broken or (event == fk.AskForPeaches
           and room:getPlayerById(data.who).hp > 0)
 
         if broken then break end
-        table.removeOne(skill_names, skill_name)
       end
 
       if broken then break end
@@ -428,6 +419,18 @@ function GameLogic:getCurrentEvent()
   return self.game_event_stack.t[self.game_event_stack.p]
 end
 
+--- 如果当前事件刚好是技能生效事件，就返回那个技能名，否则返回空串。
+function GameLogic:getCurrentSkillName()
+  local skillEvent = self:getCurrentEvent()
+  local ret = ""
+  if skillEvent.event == GameEvent.SkillEffect then
+    local _, _, _skill = table.unpack(skillEvent.data)
+    local skill = _skill.main_skill and _skill.main_skill or _skill
+    ret = skill.name
+  end
+  return ret
+end
+
 -- 在指定历史范围中找至多n个符合条件的事件
 ---@param eventType integer @ 要查找的事件类型
 ---@param n integer @ 最多找多少个
diff --git a/lua/server/room.lua b/lua/server/room.lua
index 65cd0791..721cc1ef 100644
--- a/lua/server/room.lua
+++ b/lua/server/room.lua
@@ -1457,6 +1457,33 @@ function Room:askForCardsChosen(chooser, target, min, max, flag, reason)
   return new_ret
 end
 
+--- 谋askForCardsChosen，需使用Fk:addPoxiMethod定义好方法
+---
+--- 选卡规则和返回值啥的全部自己想办法解决，data填入所有卡的列表（类似ui.card_data）
+---
+--- 注意一定要返回一个表，毕竟本质上是选卡函数
+---@param player ServerPlayer
+---@param poxi_type string
+---@param data any
+---@return integer[]
+function Room:askForPoxi(player, poxi_type, data)
+  local poxi = Fk.poxi_methods[poxi_type]
+  if not poxi then return {} end
+
+  local command = "AskForPoxi"
+  self:notifyMoveFocus(player, poxi_type)
+  local result = self:doRequest(player, command, json.encode {
+    type = poxi_type,
+    data = data,
+  })
+
+  if result == "" then
+    return poxi.default_choice(data)
+  else
+    return poxi.post_select(json.decode(result), data)
+  end
+end
+
 --- 询问一名玩家从众多选项中选择一个。
 ---@param player ServerPlayer @ 要询问的玩家
 ---@param choices string[] @ 可选选项列表
diff --git a/lua/server/serverplayer.lua b/lua/server/serverplayer.lua
index e07d2b90..4f253350 100644
--- a/lua/server/serverplayer.lua
+++ b/lua/server/serverplayer.lua
@@ -469,7 +469,7 @@ function ServerPlayer:gainAnExtraPhase(phase, delay)
     local logic = room.logic
     local turn = logic:getCurrentEvent():findParent(GameEvent.Phase, true)
     if turn then
-      turn:addExitFunc(function() self:gainAnExtraPhase(phase, false) end)
+      turn:prependExitFunc(function() self:gainAnExtraPhase(phase, false) end)
       return
     end
   end
@@ -484,7 +484,6 @@ function ServerPlayer:gainAnExtraPhase(phase, delay)
     arg = phase_name_table[phase],
   }
 
-
   GameEvent(GameEvent.Phase, self, self.phase):exec()
 
   self.phase = current
@@ -580,6 +579,7 @@ function ServerPlayer:skip(phase)
   end
 end
 
+--- 当进行到出牌阶段空闲点时，结束出牌阶段。
 function ServerPlayer:endPlayPhase()
   self._play_phase_end = true
   -- TODO: send log
@@ -592,7 +592,7 @@ function ServerPlayer:gainAnExtraTurn(delay)
     local logic = room.logic
     local turn = logic:getCurrentEvent():findParent(GameEvent.Turn, true)
     if turn then
-      turn:addExitFunc(function() self:gainAnExtraTurn(false) end)
+      turn:prependExitFunc(function() self:gainAnExtraTurn(false) end)
       return
     end
   end
@@ -604,10 +604,32 @@ function ServerPlayer:gainAnExtraTurn(delay)
 
   local current = room.current
   room.current = self
+
+  self.tag["_extra_turn_count"] = self.tag["_extra_turn_count"] or {}
+  local ex_tag = self.tag["_extra_turn_count"]
+  local skillName = room.logic:getCurrentSkillName()
+  table.insert(ex_tag, skillName)
+
   GameEvent(GameEvent.Turn, self):exec()
+
+  table.remove(ex_tag)
+
   room.current = current
 end
 
+function ServerPlayer:insideExtraTurn()
+  return self.tag["_extra_turn_count"] and #self.tag["_extra_turn_count"] > 0
+end
+
+---@return string
+function ServerPlayer:getCurrentExtraTurnReason()
+  local ex_tag = self.tag["_extra_turn_count"]
+  if (not ex_tag) or #ex_tag == 0 then
+    return "game_rule"
+  end
+  return ex_tag[#ex_tag]
+end
+
 function ServerPlayer:drawCards(num, skillName, fromPlace)
   return self.room:drawCards(self, num, skillName, fromPlace)
 end
diff --git a/packages/maneuvering/ai/init.lua b/packages/maneuvering/ai/init.lua
new file mode 100644
index 00000000..e69de29b
diff --git a/packages/standard/ai/init.lua b/packages/standard/ai/init.lua
new file mode 100644
index 00000000..e69de29b
diff --git a/packages/standard_cards/ai/init.lua b/packages/standard_cards/ai/init.lua
new file mode 100644
index 00000000..e69de29b
diff --git a/packages/test/init.lua b/packages/test/init.lua
index 17ab4006..95ce37d8 100644
--- a/packages/test/init.lua
+++ b/packages/test/init.lua
@@ -90,6 +90,12 @@ local control = fk.CreateActiveSkill{
     -- room:swapSeat(from, to)
     for _, pid in ipairs(effect.tos) do
       local to = room:getPlayerById(pid)
+      -- p(room:askForPoxi(from, "test", {
+      --   { "你自己", from:getCardIds "h" },
+      --   { "对方", to:getCardIds "h" },
+      -- }))
+      -- room:setPlayerMark(from, "@$a", {1,2,3})
+      -- room:setPlayerMark(from, "@$b", {'slash','duel','axe'})
       if to:getMark("mouxushengcontrolled") == 0 then
         room:addPlayerMark(to, "mouxushengcontrolled")
         from:control(to)
@@ -124,6 +130,22 @@ local control = fk.CreateActiveSkill{
     -- room:useVirtualCard("slash", nil, from, room:getOtherPlayers(from), self.name, true)
   end,
 }
+--[[
+Fk:addPoxiMethod{
+  name = "test",
+  card_filter = function(to_select, selected, data)
+    local s = Fk:getCardById(to_select).suit
+    for _, id in ipairs(selected) do
+      if Fk:getCardById(id).suit == s then return false end
+    end
+    return true
+  end,
+  feasible = function(selected, data)
+    return #selected == 0 or #selected == 4
+  end,
+  prompt = "魄袭：选你们俩手牌总共四个花色，或者不选直接按确定按钮"
+}
+--]]
 local test_vs = fk.CreateViewAsSkill{
   name = "test_vs",
   pattern = "nullification",