[quote=@Archmage MC]
<Snipped quote by Quatro>

No I mean, I want something more wacky than getting tired as a detriment. But I can work with it if we can't think of anything. 
[/quote]Oh! Sorry for the misunderstanding! Hmmm. If you wanted to look like a monstrosity, he could revert into a more primal personality the more he uses his ability. If he receives something that's life threatening and heals back up from that, he'd turn into some rabid beast?

Or if you want something that was more lighthearted, he could get nauseous with compounding effects every time he uses his ability. Recovering from a massive wound would leave him vomiting, but with his body intact?

[quote=@SilverDawn]
<Snipped quote by Archmage MC>

"Akiiirrrrrraaaaaaaaaaaaaa!"
Insert image of flesh monstrosity here.

Also, for the arm thing, ye. I can do the colour change. I just couldn't think of anything so late in the night. Glittery rainbow arms it is.
[/quote]Lol. Glittery rainbow arms will definitely work.