Alright, Aeon. I like your character, but there's one thing that will need a bit of changing. A Golem, or an Earth Spirit (whichever it is) is a singular shape, so to speak. By that I mean that either he becomes a golem, or he's a human. There's no middle ground here. The idea of a Shifter is that their body changes, which Gregory's does not in his Focus Shift. 

A Stone Armour isn't Shifting, it's simply an armour. I'll have to ask you to change it so that he changes into a Golem upon shifting, which would leave you with only one "Shape". You could eventually make it so that he is somewhat scared of his powers, and only really "lets go" when he gets pissed off, which makes small changes to his body? (Red glow instead of blue, fx?)