X(INVALID)
X(REQ_MINION_TARGET)
X(REQ_FRIENDLY_TARGET)
X(REQ_ENEMY_TARGET)
X(REQ_DAMAGED_TARGET)
X(REQ_MAX_SECRETS)
X(REQ_FROZEN_TARGET)
X(REQ_CHARGE_TARGET)
X(REQ_TARGET_MAX_ATTACK)
X(REQ_NONSELF_TARGET)
X(REQ_TARGET_WITH_RACE)
X(REQ_TARGET_TO_PLAY)
X(REQ_NUM_MINION_SLOTS)
X(REQ_WEAPON_EQUIPPED)
X(REQ_ENOUGH_MANA)
X(REQ_YOUR_TURN)
X(REQ_NONSTEALTH_ENEMY_TARGET)
X(REQ_HERO_TARGET)
X(REQ_SECRET_ZONE_CAP)
X(REQ_MINION_CAP_IF_TARGET_AVAILABLE)
X(REQ_MINION_CAP)
X(REQ_TARGET_ATTACKED_THIS_TURN)
X(REQ_TARGET_IF_AVAILABLE)
X(REQ_MINIMUM_ENEMY_MINIONS)
X(REQ_TARGET_FOR_COMBO)
X(REQ_NOT_EXHAUSTED_ACTIVATE)
X(REQ_UNIQUE_SECRET_OR_QUEST)
X(REQ_TARGET_TAUNTER)
X(REQ_CAN_BE_ATTACKED)
X(REQ_ACTION_PWR_IS_MASTER_PWR)
X(REQ_TARGET_MAGNET)
X(REQ_ATTACK_GREATER_THAN_0)
X(REQ_ATTACKER_NOT_FROZEN)
X(REQ_HERO_OR_MINION_TARGET)
X(REQ_CAN_BE_TARGETED_BY_SPELLS)
X(REQ_SUBCARD_IS_PLAYABLE)
X(REQ_TARGET_FOR_NO_COMBO)
X(REQ_NOT_MINION_JUST_PLAYED)
X(REQ_NOT_EXHAUSTED_HERO_POWER)
X(REQ_CAN_BE_TARGETED_BY_OPPONENTS)
X(REQ_ATTACKER_CAN_ATTACK)
X(REQ_TARGET_MIN_ATTACK)
X(REQ_CAN_BE_TARGETED_BY_HERO_POWERS)
X(REQ_ENEMY_TARGET_NOT_IMMUNE)
X(REQ_ENTIRE_ENTOURAGE_NOT_IN_PLAY)
X(REQ_MINIMUM_TOTAL_MINIONS)
X(REQ_MUST_TARGET_TAUNTER)
X(REQ_UNDAMAGED_TARGET)
X(REQ_CAN_BE_TARGETED_BY_BATTLECRIES)
X(REQ_STEADY_SHOT)
X(REQ_MINION_OR_ENEMY_HERO)
X(REQ_TARGET_IF_AVAILABLE_AND_DRAGON_IN_HAND)
X(REQ_LEGENDARY_TARGET)
X(REQ_FRIENDLY_MINION_DIED_THIS_TURN)
X(REQ_FRIENDLY_MINION_DIED_THIS_GAME)
X(REQ_ENEMY_WEAPON_EQUIPPED)
X(REQ_TARGET_IF_AVAILABLE_AND_MINIMUM_FRIENDLY_MINIONS)
X(REQ_TARGET_WITH_BATTLECRY)
X(REQ_TARGET_WITH_DEATHRATTLE)
X(REQ_TARGET_IF_AVAILABLE_AND_MINIMUM_FRIENDLY_SECRETS)
X(REQ_SECRET_ZONE_CAP_FOR_NON_SECRET)
X(REQ_TARGET_EXACT_COST)
X(REQ_STEALTHED_TARGET)
X(REQ_MINION_SLOT_OR_MANA_CRYSTAL_SLOT)
X(REQ_MAX_QUESTS)
X(REQ_TARGET_IF_AVAILABLE_AND_ELEMENTAL_PLAYED_LAST_TURN)
X(REQ_TARGET_NOT_VAMPIRE)
X(REQ_TARGET_NOT_DAMAGEABLE_ONLY_BY_WEAPONS)
X(REQ_NOT_DISABLED_HERO_POWER)
X(REQ_MUST_PLAY_OTHER_CARD_FIRST)
X(REQ_HAND_NOT_FULL)
X(REQ_TARGET_IF_AVAILABLE_AND_NO_3_COST_CARD_IN_DECK)
X(REQ_CAN_BE_TARGETED_BY_COMBOS)
X(REQ_CANNOT_PLAY_THIS)
X(REQ_FRIENDLY_MINIONS_OF_RACE_DIED_THIS_GAME)
X(REQ_DRAG_TO_PLAY_PRE29933)
X(REQ_OPPONENT_PLAYED_CARDS_THIS_GAME)
X(REQ_LITERALLY_UNPLAYABLE)
X(REQ_TARGET_IF_AVAILABLE_AND_HERO_HAS_ATTACK)
X(REQ_FRIENDLY_MINION_OF_RACE_DIED_THIS_TURN)
X(REQ_TARGET_IF_AVAILABLE_AND_MINIMUM_SPELLS_PLAYED_THIS_TURN)
X(REQ_FRIENDLY_MINION_OF_RACE_IN_HAND)
X(REQ_DRAG_TO_PLAY_PRE31761)
X(REQ_FRIENDLY_DEATHRATTLE_MINION_DIED_THIS_GAME)
X(REQ_FRIENDLY_REBORN_MINION_DIED_THIS_GAME)
X(REQ_MINION_DIED_THIS_GAME)
X(REQ_BOARD_NOT_COMPLETELY_FULL)
X(REQ_TARGET_IF_AVAILABLE_AND_HAS_OVERLOADED_MANA)
X(REQ_TARGET_IF_AVAILABLE_AND_HERO_ATTACKED_THIS_TURN)
X(REQ_TARGET_IF_AVAILABLE_AND_DRAWN_THIS_TURN)
X(REQ_TARGET_IF_AVAILABLE_AND_NOT_DRAWN_THIS_TURN)
X(REQ_TARGET_NON_TRIPLED_MINION)
X(REQ_BOUGHT_MINION_THIS_TURN)
X(REQ_SOLD_MINION_THIS_TURN)
X(REQ_TARGET_IF_AVAILABLE_AND_PLAYER_HEALTH_CHANGED_THIS_TURN)
X(REQ_TARGET_IF_AVAILABLE_AND_SOUL_FRAGMENT_IN_DECK)
X(REQ_DAMAGED_TARGET_UNLESS_COMBO)
X(REQ_PLACEHOLDER_01)
X(REQ_PLACEHOLDER_02)
X(REQ_PLACEHOLDER_03)
X(REQ_NOT_MINION_DORMANT)
X(REQ_TARGET_NOT_DORMANT)
X(REQ_TARGET_IF_AVAILABLE_AND_BOUGHT_RACE_THIS_TURN)
X(REQ_TARGET_IF_AVAILABLE_AND_SOLD_RACE_THIS_TURN)
X(REQ_TWO_OF_A_KIND)
X(REQ_HAS_OVERLOADED_MANA)
X(REQ_TARGET_NOT_HAVE_TAG)
X(REQ_TARGET_MUST_HAVE_TAG)
X(REQ_TRADEABLE)
X(REQ_NOT_LEGENDARY_TARGET)
X(REQ_MINIMUM_TAVERN_TIER_LEVEL_TO_PLAY)
X(REQ_CARD_TAVERN_TIER_LEVEL_TO_PLAY)
X(REQ_NOT_EXHAUSTED_LOCATION)
X(REQ_LOCATION_TARGET)
X(REQ_TARGET_SILVER_HAND_RECRUIT)
X(REQ_CAN_BE_TARGETED_BY_LOCATIONS)
X(REQ_DRAG_TO_PLAY)