Obrak the Feaster ideas?

Obrak was one of the first Omens legendaries I opened, and it seems like there must be a way to make the most of him. I'm thinking along the lines of a Kalis-style Stonescar deck, with small units that you want to die and other cards like Torrent of Spiders and Scraptank.

Anyone have any other ideas about how to make this brutal dragon shine?