Blood-Starved Acolyte

Whenever a creature dealt damage by Blood-Starved Acolyte this turn dies, Confess 1, then reveal the top card of your library. If a nonland card is revealed this way, each opponent loses life equal to its converted mana cost, then you gain life equal to the amount lost this way. If a land card is revealed this way, put a +1/+1 counter on Blood-Starved Acolyte.