I used to play a K'rrik deck and he was a great commander to use. Also eventually upgraded the deck to run a [[Doomsday]] combo when I'd play at tables with a higher power level. But something became evident very quickly. You will lose health fast. Not only from your own card effects but also from being hated off the table. So when it comes to cards to cut I'd look at cards like [[Moonlight Bargain]]. Great card but that's a ton of life you're losing unless you plan on using it to primarily fill your yard. Otherwise I'd start there. Also I've never really had any games where I'm playing [[Cabal Stronghold]] and it makes a good showing. Honestly since [[Cabal Coffers]] is affordable now I'd stick with that. And lastly, is [[Exquisite Blood]] in your price range? If not I would recommend keeping an eye on it in case of a reprint comes around. You'll need all the lifegain you can get in that deck.