Horde Ambusher

Creature — Human Berserker — {1}{R}

Whenever this creature blocks, it deals 1 damage to you. Morph—Reveal a red card in your hand. (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.) When this creature is turned face up, target creature can't block this turn.