Keldrin, Voice of Night

Flying
{b}{b}{b}, Sacrifice a creature: Contort (Pick three cards at random from a target graveyard. You may put any number of cards picked this way into your hand. Activate this only as a sorcery and once per turn.)
Whenever an opponent is dealt damage by a creature you control, put a 1/1 black horror creature token with Deathtouch onto the battlefield tapped.