diff --git a/Fk/Pages/MetroToggleButton.qml b/Fk/Pages/MetroToggleButton.qml
new file mode 100644
index 00000000..9111ea27
--- /dev/null
+++ b/Fk/Pages/MetroToggleButton.qml
@@ -0,0 +1,87 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+import QtQuick
+
+Item {
+  property bool enabled: true
+  property bool triggered: false
+  property alias text: title.text
+  property alias textColor: title.color
+  property alias textFont: title.font
+  property alias backgroundColor: bg.color
+  property alias border: bg.border
+  property alias iconSource: icon.source
+  property int padding: 5
+
+  signal clicked
+
+  id: button
+  width: icon.width + title.implicitWidth + padding * 2
+  height: Math.max(icon.height, title.implicitHeight) + padding * 2
+
+  Rectangle {
+    id: bg
+    anchors.fill: parent
+    color: "black"
+    border.width: 2
+    border.color: "white"
+    opacity: 0.8
+  }
+
+  states: [
+    State {
+      name: "hovered_checked"; when: hover.hovered && triggered
+      PropertyChanges { target: bg; color: "gold" }
+      PropertyChanges { target: title; color: "black" }
+    },
+    State {
+      name: "hovered"; when: hover.hovered
+      PropertyChanges { target: bg; color: "white" }
+      PropertyChanges { target: title; color: "black" }
+    },
+    State {
+      name: "checked"; when: triggered
+      PropertyChanges { target: border; color: "gold" }
+      PropertyChanges { target: title; color: "gold" }
+    },
+    State {
+      name: "disabled"; when: !enabled
+      PropertyChanges { target: button; opacity: 0.2 }
+    }
+  ]
+
+  TapHandler {
+    id: mouse
+    onTapped: if (parent.enabled) {
+      triggered = !triggered;
+      parent.clicked();
+    }
+  }
+
+  HoverHandler {
+    id: hover
+    cursorShape: Qt.PointingHandCursor
+  }
+
+  Row {
+    x: padding
+    y: padding
+    anchors.centerIn: parent
+    spacing: 5
+
+    Image {
+      id: icon
+      anchors.verticalCenter: parent.verticalCenter
+      fillMode: Image.PreserveAspectFit
+    }
+
+    Text {
+      id: title
+      font.pixelSize: 18
+      // font.family: "WenQuanYi Micro Hei"
+      anchors.verticalCenter: parent.verticalCenter
+      text: ""
+      color: "white"
+    }
+  }
+}
diff --git a/Fk/Pages/RoomLogic.js b/Fk/Pages/RoomLogic.js
index 2ba7fc21..ca03ed1f 100644
--- a/Fk/Pages/RoomLogic.js
+++ b/Fk/Pages/RoomLogic.js
@@ -1008,6 +1008,48 @@ callbacks["AskForChoice"] = (jsonData) => {
   });
 }
 
+callbacks["AskForCheck"] = (jsonData) => {
+  // jsonData: [ string[] choices, string skill ]
+  // TODO: multiple choices, e.g. benxi_ol
+  const data = JSON.parse(jsonData);
+  const choices = data[0];
+  const all_choices = data[1];
+  const min_num = data[2][0];
+  const max_num = data[2][1];
+  const cancelable = data[3];
+  const skill_name = data[4];
+  const prompt = data[5];
+  const detailed = data[6];
+  if (prompt === "") {
+    roomScene.promptText = Backend.translate("#AskForCheck")
+      .arg(Backend.translate(skill_name));
+  } else {
+    roomScene.setPrompt(processPrompt(prompt), true);
+  }
+  roomScene.state = "replying";
+  let qmlSrc;
+  if (!detailed) {
+    qmlSrc = "../RoomElement/CheckBox.qml";
+  } else {
+    qmlSrc = "../RoomElement/DetailedCheckBox.qml";
+  }
+  roomScene.popupBox.sourceComponent = Qt.createComponent(qmlSrc);
+  const box = roomScene.popupBox.item;
+  box.options = choices;
+  box.skill_name = skill_name;
+  box.all_options = all_choices;
+  box.min_num = min_num;
+  box.max_num = max_num;
+  box.cancelable = cancelable;
+  box.accepted.connect(() => {
+    const ret = [];
+    box.result.forEach(id => {
+      ret.push(all_choices[id]);
+    });
+    replyToServer(JSON.stringify(ret));
+  });
+}
+
 callbacks["AskForCardChosen"] = (jsonData) => {
   // jsonData: [ int[] handcards, int[] equips, int[] delayedtricks,
   //  string reason ]
diff --git a/Fk/Pages/qmldir b/Fk/Pages/qmldir
index 4faa6988..077cbf73 100644
--- a/Fk/Pages/qmldir
+++ b/Fk/Pages/qmldir
@@ -6,6 +6,7 @@ GeneralsOverview 1.0 GeneralsOverview.qml
 Init 1.0 Init.qml
 Lobby 1.0 Lobby.qml
 MetroButton 1.0 MetroButton.qml
+MetroToggleButton 1.0 MetroToggleButton.qml
 ModesOverview 1.0 ModesOverview.qml
 PackageManage 1.0 PackageManage.qml
 Room 1.0 Room.qml
diff --git a/Fk/RoomElement/CheckBox.qml b/Fk/RoomElement/CheckBox.qml
new file mode 100644
index 00000000..dcbdc892
--- /dev/null
+++ b/Fk/RoomElement/CheckBox.qml
@@ -0,0 +1,90 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+import QtQuick
+import QtQuick.Layouts
+import Fk.Pages
+
+GraphicsBox {
+  property var options: []
+  property var all_options: []
+  property bool cancelable: false
+  property int min_num: 0
+  property int max_num: 0
+  property string skill_name: ""
+  property var result: []
+
+  id: root
+  title.text: Backend.translate("$Choice").arg(Backend.translate(skill_name))
+  width: Math.max(140, body.width + 20)
+  height: buttons.height + body.height + title.height + 20
+
+  function processPrompt(prompt) {
+    const data = prompt.split(":");
+    let raw = Backend.translate(data[0]);
+    const src = parseInt(data[1]);
+    const dest = parseInt(data[2]);
+    if (raw.match("%src")) raw = raw.replace(/%src/g, Backend.translate(getPhoto(src).general));
+    if (raw.match("%dest")) raw = raw.replace(/%dest/g, Backend.translate(getPhoto(dest).general));
+    if (raw.match("%arg2")) raw = raw.replace(/%arg2/g, Backend.translate(data[4]));
+    if (raw.match("%arg")) raw = raw.replace(/%arg/g, Backend.translate(data[3]));
+    return raw;
+  }
+
+  GridLayout {
+    id: body
+    // x: 10
+    anchors.horizontalCenter: parent.horizontalCenter
+    y: title.height + 5
+    flow: GridLayout.TopToBottom
+    rows: 8
+    columnSpacing: 10
+
+    Repeater {
+      model: all_options
+
+      MetroToggleButton {
+        // Layout.fillWidth: true
+        text: processPrompt(modelData)
+        enabled: options.indexOf(modelData) !== -1 && (root.result.length < max_num || triggered)
+
+        onClicked: {
+          if (triggered) {
+            root.result.push(index);
+          } else {
+            root.result.splice(root.result.indexOf(index), 1);
+          }
+          root.result = root.result;
+        }
+      }
+    }
+  }
+
+  Row {
+    id: buttons
+    anchors.margins: 8
+    anchors.top: body.bottom
+    anchors.horizontalCenter: root.horizontalCenter
+    spacing: 32
+
+    MetroButton {
+      Layout.fillWidth: true
+      text: processPrompt("OK")
+      enabled: root.result.length >= min_num
+
+      onClicked: {
+        root.close();
+      }
+    }
+
+    MetroButton {
+      Layout.fillWidth: true
+      text: processPrompt("Cancel")
+      visible: cancelable
+
+      onClicked: {
+        root.result = [];
+        root.close();
+      }
+    }
+  }
+}
diff --git a/Fk/RoomElement/DetailedCheckBox.qml b/Fk/RoomElement/DetailedCheckBox.qml
new file mode 100644
index 00000000..f9bae3a0
--- /dev/null
+++ b/Fk/RoomElement/DetailedCheckBox.qml
@@ -0,0 +1,107 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+import QtQuick
+import QtQuick.Layouts
+import QtQuick.Controls
+import Fk.Pages
+
+GraphicsBox {
+  property var options: []
+  property var all_options: []
+  property bool cancelable: false
+  property int min_num: 0
+  property int max_num: 0
+  property string skill_name: ""
+  property var result: []
+
+  id: root
+  title.text: Backend.translate("$Choice").arg(Backend.translate(skill_name))
+  width: Math.max(140, body.width + 20)
+  height: buttons.height + body.height + title.height + 20
+
+  ListView {
+    id: body
+    x: 10
+    y: title.height + 5
+    width: Math.min(700, 220 * model.length)
+    height: 300
+    orientation: ListView.Horizontal
+    clip: true
+    spacing: 20
+
+    model: all_options
+
+    delegate: Item {
+      width: 200
+      height: 290
+
+      MetroToggleButton {
+        id: choicetitle
+        width: parent.width
+        text: Backend.translate(modelData)
+        enabled: options.indexOf(modelData) !== -1 && (root.result.length < max_num || triggered)
+        textFont.pixelSize: 24
+        anchors.top: choiceDetail.bottom
+        anchors.topMargin: 8
+
+        onClicked: {
+          if (triggered) {
+            root.result.push(index);
+          } else {
+            root.result.splice(root.result.indexOf(index), 1);
+          }
+          root.result = root.result;
+        }
+      }
+
+      Flickable {
+        id: choiceDetail
+        x: 4
+        height: parent.height - choicetitle.height
+        contentHeight: detail.height
+        width: parent.width
+        clip: true
+        Text {
+          id: detail
+          width: parent.width
+          text: Backend.translate(":" + modelData)
+          color: "white"
+          wrapMode: Text.WordWrap
+          font.pixelSize: 16
+          textFormat: TextEdit.RichText
+        }
+      }
+    }
+  }
+
+  Row {
+    id: buttons
+    anchors.margins: 8
+    anchors.bottom: root.bottom
+    anchors.horizontalCenter: root.horizontalCenter
+    spacing: 32
+
+    MetroButton {
+      width: 120
+      height: 35
+      text: Backend.translate("OK")
+      enabled: root.result.length >= min_num
+
+      onClicked: {
+        root.close();
+      }
+    }
+
+    MetroButton {
+      width: 120
+      height: 35
+      text: Backend.translate("Cancel")
+      visible: root.cancelable
+
+      onClicked: {
+        result = [];
+        root.close();
+      }
+    }
+  }
+}
diff --git a/Fk/RoomElement/PoxiBox.qml b/Fk/RoomElement/PoxiBox.qml
index f3c6ab30..3abdd791 100644
--- a/Fk/RoomElement/PoxiBox.qml
+++ b/Fk/RoomElement/PoxiBox.qml
@@ -7,7 +7,7 @@ import Fk.Pages
 GraphicsBox {
   id: root
 
-  title.text: Backend.callLuaFunction("PoxiPrompt", [poxi_type, card_data])
+  title.text: Backend.callLuaFunction("PoxiPrompt", [poxi_type, card_data, extra_data])
 
   // TODO: Adjust the UI design in case there are more than 7 cards
   width: 70 + 700
@@ -116,7 +116,7 @@ GraphicsBox {
       width: 120
       height: 35
       text: Backend.translate("Cancel")
-      enabled: root.cancelable
+      visible: root.cancelable
       onClicked: root.cardsSelected([])
     }
 
diff --git a/Fk/RoomElement/UltSkillAnimation.qml b/Fk/RoomElement/UltSkillAnimation.qml
index 03c25bd8..6812333c 100644
--- a/Fk/RoomElement/UltSkillAnimation.qml
+++ b/Fk/RoomElement/UltSkillAnimation.qml
@@ -74,6 +74,7 @@ Item {
     x: root.width + 140
     anchors.verticalCenter: parent.verticalCenter
     opacity: 0
+    detailed: false
   }
 
   Text {
diff --git a/lua/client/client_util.lua b/lua/client/client_util.lua
index abd12a3f..2f47cc00 100644
--- a/lua/client/client_util.lua
+++ b/lua/client/client_util.lua
@@ -715,11 +715,11 @@ function GetCardProhibitReason(cid, method, pattern)
   end
 end
 
-function PoxiPrompt(poxi_type, data)
+function PoxiPrompt(poxi_type, data, extra_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)
+  return poxi.prompt(data, extra_data)
 end
 
 function PoxiFilter(poxi_type, to_select, selected, data, extra_data)
diff --git a/lua/client/i18n/en_US.lua b/lua/client/i18n/en_US.lua
index e5a11e7e..cc3ccbed 100644
--- a/lua/client/i18n/en_US.lua
+++ b/lua/client/i18n/en_US.lua
@@ -159,6 +159,7 @@ Fk:loadTranslationTable({
   ["#AskForLuckCard"] = "Do you want to use luck card (%1 times left)?",
   ["AskForLuckCard"] = "Luck card",
   ["#AskForChoice"] = "%1: Please choose",
+  ["#AskForCheck"] = "%1: Please choose",
   ["#choose-trigger"] = "Please choose the skill to use",
   ["trigger"] = "Trigger skill",
   -- ["Please arrange cards"] = "请拖拽移动卡牌",
@@ -169,6 +170,7 @@ Fk:loadTranslationTable({
   ["AskForGuanxing"] = "Stargazing",
   ["AskForExchange"] = "Exchaging",
   ["AskForChoice"] = "Making choice",
+  ["AskForCheck"] = "Making choice",
   ["AskForKingdom"] = "Choosing kingdom",
   ["AskForPindian"] = "Point fight",
   ["AskForMoveCardInBoard"] = "Moving cards",
diff --git a/lua/client/i18n/zh_CN.lua b/lua/client/i18n/zh_CN.lua
index 669eeb74..4be3b9d8 100644
--- a/lua/client/i18n/zh_CN.lua
+++ b/lua/client/i18n/zh_CN.lua
@@ -205,6 +205,7 @@ FreeKill使用的是libgit2的C API，与此同时使用Git完成拓展包的下
   ["#AskForLuckCard"] = "你想使用手气卡吗？还可以使用 %1 次，剩余手气卡∞张",
   ["AskForLuckCard"] = "手气卡",
   ["#AskForChoice"] = "%1：请选择",
+  ["#AskForCheck"] = "%1：请选择",
   ["#choose-trigger"] = "请选择一项技能发动",
   ["trigger"] = "选择技能",
   ["Please arrange cards"] = "请拖拽移动卡牌",
@@ -215,6 +216,7 @@ FreeKill使用的是libgit2的C API，与此同时使用Git完成拓展包的下
   ["AskForGuanxing"] = "观星",
   ["AskForExchange"] = "换牌",
   ["AskForChoice"] = "选择",
+  ["AskForCheck"] = "选择",
   ["AskForKingdom"] = "选择势力",
   ["AskForPindian"] = "拼点",
   ["AskForMoveCardInBoard"] = "移动卡牌",
diff --git a/lua/core/util.lua b/lua/core/util.lua
index d8705596..83049cbc 100644
--- a/lua/core/util.lua
+++ b/lua/core/util.lua
@@ -52,6 +52,24 @@ Util.convertSubtypeAndEquipSlot = function(value)
   end
 end
 
+--- 根据花色文字描述（如 黑桃、红桃、梅花、方块）或者符号（如♠♥♣♦，带颜色）返回花色ID。
+---@param symbol string @ 描述/符号（原文，确保没被翻译过）
+---@return Suit @ 花色ID
+Util.getSuitFromString = function(symbol)
+  assert(type(symbol) == "string")
+  if symbol:find("spade") then
+    return Card.Spade
+  elseif symbol:find("heart") then
+    return Card.Heart
+  elseif symbol:find("club") then
+    return Card.Club
+  elseif symbol:find("diamond") then
+    return Card.Diamond
+  else
+    return Card.NoSuit
+  end
+end
+
 function printf(fmt, ...)
   print(string.format(fmt, ...))
 end
@@ -118,14 +136,22 @@ function table:map(func)
 end
 
 -- frequenly used filter & map functions
+
+--- 返回ID
 Util.IdMapper = function(e) return e.id end
+--- 根据卡牌ID返回卡牌
 Util.Id2CardMapper = function(id) return Fk:getCardById(id) end
+--- 根据玩家ID返回玩家
 Util.Id2PlayerMapper = function(id)
   return Fk:currentRoom():getPlayerById(id)
 end
+--- 返回武将名
 Util.NameMapper = function(e) return e.name end
+--- 根据武将名返回武将
 Util.Name2GeneralMapper = function(e) return Fk.generals[e] end
+--- 根据技能名返回技能
 Util.Name2SkillMapper = function(e) return Fk.skills[e] end
+--- 返回译文
 Util.TranslateMapper = function(str) return Fk:translate(str) end
 
 -- for card preset
diff --git a/lua/fk_ex.lua b/lua/fk_ex.lua
index d1b41306..681b3c54 100644
--- a/lua/fk_ex.lua
+++ b/lua/fk_ex.lua
@@ -179,7 +179,7 @@ end
 ---@field public on_effect nil|fun(self: ActiveSkill, room: Room, cardEffectEvent: CardEffectEvent): bool
 ---@field public on_nullified nil|fun(self: ActiveSkill, room: Room, cardEffectEvent: CardEffectEvent): bool
 ---@field public mod_target_filter nil|fun(self: ActiveSkill, to_select: integer, selected: integer[], user: integer, card: Card, distance_limited: boolean): bool
----@field public prompt nil|string|fun(self: ActiveSkill, selected: integer[], selected_cards: integer[]): string
+---@field public prompt nil|string|fun(self: ActiveSkill, selected_cards: integer[], selected_targets: integer[]): string
 ---@field public interaction any
 
 ---@param spec ActiveSkillSpec
diff --git a/lua/freekill.lua b/lua/freekill.lua
index 1f768c88..27c169d9 100644
--- a/lua/freekill.lua
+++ b/lua/freekill.lua
@@ -18,7 +18,8 @@ math.randomseed(os.time())
 
 -- 加载实用类，让Lua编写起来更轻松。
 local Utils = require "core.util"
-TargetGroup, AimGroup, Util = table.unpack(Utils)
+-- TargetGroup, AimGroup, Util = table.unpack(Utils)
+TargetGroup, AimGroup, Util = Utils[1], Utils[2], Utils[3]
 dofile "lua/core/debug.lua"
 
 -- 加载游戏核心类
diff --git a/lua/server/room.lua b/lua/server/room.lua
index 8fa2fffe..d1296bba 100644
--- a/lua/server/room.lua
+++ b/lua/server/room.lua
@@ -1052,7 +1052,7 @@ end
 ---@param cancelable bool @ 是否可以点取消
 ---@param extra_data table|nil @ 额外信息，因技能而异了
 ---@param no_indicate bool @ 是否不显示指示线
----@return boolean, table
+---@return boolean, table|nil
 function Room:askForUseActiveSkill(player, skill_name, prompt, cancelable, extra_data, no_indicate)
   prompt = prompt or ""
   cancelable = (cancelable == nil) and true or cancelable
@@ -1322,6 +1322,55 @@ function Room:askForChooseCardAndPlayers(player, targets, minNum, maxNum, patter
   end
 end
 
+--- 询问玩家选择X张牌和Y名角色。
+---
+--- 返回两个值，第一个是选择的目标列表，第二个是选择的那张牌的id
+---@param player ServerPlayer @ 要询问的玩家
+---@param minCardNum integer @ 选卡牌最小值
+---@param maxCardNum integer @ 选卡牌最大值
+---@param targets integer[] @ 选择目标的id范围
+---@param minTargetNum integer @ 选目标最小值
+---@param maxTargetNum integer @ 选目标最大值
+---@param pattern string|nil @ 选牌规则
+---@param prompt string|nil @ 提示信息
+---@param cancelable bool @ 能否点取消
+---@param no_indicate bool @ 是否不显示指示线
+---@return integer[], integer[]
+function Room:askForChooseBoth(player, minCardNum, maxCardNum, targets, minTargetNum, maxTargetNum, pattern, prompt, skillName, cancelable, no_indicate)
+  if minCardNum < 1 or minTargetNum < 1 then
+    return table.unpack({}, {})
+  end
+  cancelable = (cancelable == nil) and true or cancelable
+  no_indicate = no_indicate or false
+  pattern = pattern or "."
+
+  local pcards = table.filter(player:getCardIds({ Player.Hand, Player.Equip }), function(id)
+    local c = Fk:getCardById(id)
+    return c:matchPattern(pattern)
+  end)
+  if #pcards < minCardNum and not cancelable then return table.unpack({}, {}) end
+
+  local data = {
+    targets = targets,
+    max_target_num = maxTargetNum,
+    min_target_num = minTargetNum,
+    max_card_num = maxCardNum,
+    min_card_num = minCardNum,
+    pattern = pattern,
+    skillName = skillName,
+  }
+  local _, ret = self:askForUseActiveSkill(player, "ex__choose_skill", prompt or "", cancelable, data, no_indicate)
+  if ret then
+    return ret.targets, ret.cards
+  else
+    if cancelable then
+      return table.unpack({}, {})
+    else
+      return table.random(targets, minTargetNum), table.random(pcards, minCardNum)
+    end
+  end
+end
+
 --- 抽个武将
 ---
 --- 同getNCards，抽出来就没有了，所以记得放回去。
@@ -1609,6 +1658,35 @@ function Room:askForChoice(player, choices, skill_name, prompt, detailed, all_ch
   return result
 end
 
+--- 询问一名玩家从众多选项中勾选任意项。
+---@param player ServerPlayer @ 要询问的玩家
+---@param choices string[] @ 可选选项列表
+---@param minNum number @ 最少选择项数
+---@param maxNum number @ 最多选择项数
+---@param skill_name string|nil @ 技能名
+---@param prompt string|nil @ 提示信息
+---@param cancelable bool|nil @ 是否可取消
+---@param detailed bool @ 选项详细描述
+---@param all_choices string[]|nil @ 所有选项（不可选变灰）
+---@return string[] @ 选择的选项
+function Room:askForCheck(player, choices, minNum, maxNum, skill_name, prompt, cancelable, detailed, all_choices)
+  cancelable = (cancelable == nil) and true or cancelable
+  if #choices <= minNum and not all_choices then return choices end
+  assert(minNum <= maxNum)
+  assert(not all_choices or table.every(choices, function(c) return table.contains(all_choices, c) end))
+  local command = "AskForCheck"
+  skill_name = skill_name or ""
+  prompt = prompt or ""
+  all_choices = all_choices or choices
+  detailed = detailed or false
+  self:notifyMoveFocus(player, skill_name)
+  local result = self:doRequest(player, command, json.encode{
+    choices, all_choices, {minNum, maxNum}, cancelable, skill_name, prompt, detailed
+  })
+  if result == "" then return {} end
+  return json.decode(result)
+end
+
 --- 询问玩家是否发动技能。
 ---@param player ServerPlayer @ 要询问的玩家
 ---@param skill_name string @ 技能名
diff --git a/packages/standard/aux_skills.lua b/packages/standard/aux_skills.lua
index 4013ea23..ba2e878f 100644
--- a/packages/standard/aux_skills.lua
+++ b/packages/standard/aux_skills.lua
@@ -92,6 +92,23 @@ local choosePlayersSkill = fk.CreateActiveSkill{
   max_target_num = function(self) return self.num end,
 }
 
+local exChooseSkill = fk.CreateActiveSkill{
+  name = "ex__choose_skill",
+  card_filter = function(self, to_select, selected)
+    return self.pattern ~= "" and Exppattern:Parse(self.pattern):match(Fk:getCardById(to_select)) and #selected < self.max_card_num
+  end,
+  target_filter = function(self, to_select, selected, cards)
+    if self.pattern ~= "" and #cards < self.min_card_num then return end
+    if #selected < self.max_target_num then
+      return table.contains(self.targets, to_select)
+    end
+  end,
+  min_target_num = function(self) return self.min_target_num end,
+  max_target_num = function(self) return self.max_target_num end,
+  min_card_num = function(self) return self.min_card_num end,
+  max_card_num = function(self) return self.max_card_num end,
+}
+
 local maxCardsSkill = fk.CreateMaxCardsSkill{
   name = "max_cards_skill",
   global = true,
@@ -222,6 +239,7 @@ AuxSkills = {
   discardSkill,
   chooseCardsSkill,
   choosePlayersSkill,
+  exChooseSkill,
   maxCardsSkill,
   choosePlayersToMoveCardInBoardSkill,
   uncompulsoryInvalidity,