Originally Posted by
Pendulous
I use Sign in Blood all the time on myself, and stick it in any black deck that I can. However, a card like Dark Confidant basically puts a timer on your game, which I don't like. At least with Phyrexian Arena, it's one life a turn, so you don't have to worry about pulling a card like another Duskmantle Seer. And really, maybe I'm just being ignorant here, but what legitimate decks can your run that doesn't feature any cards costing more than three (other than the Seer)?