I like what you have put together. I just built my EDH deck deck:kreshsekkuar that works practically the same way. I may borrow a few ideas. I would suggest adding some draw power with Phyrexian Arena , card:Ambition's Cost and/or Harmonize . I also use Grave Pact and Butcher of Malakir for board control instead of targeted removal or burn. Just a thought. I also have a bunch of sac engines, although the devour mechanic is a good one to use that I hadn't considered. I also like being able to bounce between the two commanders and am glad that someone else would use him. My build starts off fairly harmless (yay flying under radar) but its funny how Kresh can get really big, really fast. Hope these help. Best of luck.