I feel like the torment version is a bit too powerful, 4 cost for 4/4 with 2 spell+vamp. comparing: psion upgraded, vamp upgraded, and the usual 4/4s (heck maybe the unupped torment is overpowered too). (oh gawd, fractal decks based off this would .... i dont even ...)
I suggest making the spellvamp damage % like solace, or changing 3/3-4/4 to 2/2-3/3, or cost go to 5 or 6.