RWBY character Idea

Character name Coal Ember
Nicknamed Ox
Phonis (idk if that's right)
Had his left horn cut off by humans
Has no drive but to defend team RWBY, and to kill everything
His right arm was cut off by a piece of shrapnel and now is a robot arm (from halo)
He is 6'8 and also a gentle giant but looks very scary
His special is control over electricity (like the ground pound from destiny)
His weapon is called Darkness bound
Looks like a .44 magnum
Special dark dust rounds
And has scars on his back that make him go into Yangs rage mode x100
Thank you for reading my Idea :)