I've played a similar deck to this... 4 boneyards, 4 empathic bonds, 6 viruses and 6 plagues, bonewall, a nightfall, and enough pillars to play them all. The deck would do one of two things:
1) fail miserably in 5 minutes flat.
2) Win and get an elemental mastery, but take 30 mins to do so.
It was easily the dullest deck I have ever played. I can see this being very similar, although I do like the idea of malignant cells. Perhaps that might be a viable tactic? Fill your opponents side of the board with malignant cells and have a -1 damage shield so he can't play anything or deal any damage?