Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.) Face-down creatures you control have ": Turn this creature face up. If you can't, exile it, then you may cast the exiled card without paying its mana cost." Whenever an Assassin you control deals combat damage to an opponent, cloak (To cloak a card, put it onto the battlefield face down as a 2/2 creature with ward (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays .). Turn it face up any time for its mana cost if it's a creature card.) the top card of that player's library.