Yeah i was thinking about taint, but i choose horrific mutation most of all because reg3 is useless on vindrax and akakios (i've got him still level 2, so don't have scale armor atm lol xD), and because the speed and def power up is stronger accirding to me than draconic Force. But 10 less nora cost isn't bad at all, so i'm gonna try both and we'll see what will be better