Mono Black Aggro/Control.

Discard/psuedo-discard with the Ravenous and Chittering Rats, while keeping the aggro pressure up with Nezumi Cutthroat and Ogre Marauder. Skull Collector allows me to return a Ravenous/Chittering Rat to my hand, to be replayed either via Aether Vial or just by hard-casting it.

Dark Confidant is there to help keep my hand filled, along with SoFaI, which, if the deck is doing it's job, should be hitting the opponent regularly.