I played a similar deck before. That version was a counter-burn style deck in which I used Mystic Snakes to gain some control. Now with Commander coming out, may I suggest Animar, Soul of Elements?
I also like to imagine that he has a rotating torso (like a metallic graft that fuses his upper and lower body together), so he can spin all around, leveling everything within 20ft of him to rubble.
http://gatherer.wizards.com/Pages/Card/Discussion.aspx?multiverseid=236504
http://forums.mtgsalvation.com/showthread.php?t=331795