Commander

K'rrik, Son of Yawgmoth

This deck wins by looping Gray Merchant or "storming" off with lifegain engines in play. It get's to run a lot of high CMC tutors and interesting cards not found in other black cEDH decks thanks to K'rrik's unique form of "mana ramp". It can consistently threaten turn 3-5 wins with multiple one card win-con enablers. K'rrik's best matchups are playing into stax and in pods that lack countermagic and/or graveyard hate.