[It's pretty lucky that Greed is left handed and is thus holding up the 'Gear with the hand that completely gives away what he is.]

Nah, he's just evolved.

First time I've seen it. It's what happens when a Pokemon battles enough. Usually, anyway. I think there are some that never change.

[He might not have the slit pupils here, but his eyes are still the strange violet hue, and he still has those teeth.

Greed is being careful, but some things are certainly much more difficult to hide than others.]