Boros Strike-Captain {1}{R/W}{R/W}
Creature — Minotaur Soldier
Battalion — Whenever this creature and at least two other creatures attack, exile the top card of your library. During any turn you attacked with three or more creatures, you may play that card.
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Cards that do something similar expected a card that isn't here?
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Caves of Chaos Adventurer 84%
$0.44#7374
"Whenever this creature attacks, exile the top card of your library. If you've completed a dungeon, you may play that card this turn without paying its mana cost. Otherwise, you may play that card this turn."