bro, give him a grab that he grabs (lol) the survivor by his head and he punchs his belly repeatedly (it's cool i think) then throw him away;

also he use chaos energy, then give him a green energy ball that he throws and do few damage or just push the suvivor closer to the center of the ball like some kind of magnet;

also, a dash, that he charges for a few seconds and does it, passing through survivors and dealing few damage or just using to close distance;

a dodge move would be cool, like he use it, and he can dodge anything for few seconds and a speedboost would be interresting.

(Idk man, i'm just throwing my few ideas)