Murdoc, the Vengeful

+1: Draw a card, then discard a card. Up to one target creature can't tap until your next upkeep. You gain 2 life.
X: Murdoc, the Vengeful deals X damage to target creature or planeswalker and X damage to you.
-12: Destroy up to three target creatures or lands. You gain 6 life. Murdoc, the Vengeful deals 9 damage to target opponent.