To toss some ideas out:
Misfist - "Misfit" and "Fist"
Misfit encompasses the feel of a loner, while having an obvious dark conotation. It seems to fit well with the general idea of the Pokemon, taking abuse for being less than the norm.
Fist is the obvious fighting tie in that flows well with the pre-exsisting word base.
Effedgy - "Effigy" and "Edgy"
Effiigy is the more correct term for the typical voodoo doll, given it's supposed to be based on the looks of another person in order to channel the black magic.
Edgy again brings about the tormented fighter theme that the backstory seems based off of to cover both types decently.
Pinnuckle - "Pin" and "Knuckle"
Very simple concept, an obvious physical feature and a type theme. When said aloud, it sounds very similair to pinacle which in my opinion gives it a nice ring.
Karizmaul - "Karma", "Charismatic" and "Maul"
I feel karma fits this Pokemon like a boxing glove, its backstory is of taking abuse and its purpose now is to dish it back out. Charismatic here refers to the sense of charm in sorcery, not the commonday sense of it, referring to its obvious charmed puppet design and the speical attack/magical prowess. Maul is the shameless fighting tie in that flows, reffering to pummeling. This one feels kinda wizardy which I like xD
Feedback appreciated, just some quick ideas.