Sheer Force, Guts, Moxie, Scrappy and Defiant all would be good. I wish they improved his physical movepool more than anything.
Well, he gets Drain Punch in a couple weeks.
Yeah but that's his best and only good STAB option on the fighting side. If they gave him Sheer Force, it'd work better with the elemental punches. Also, we'd have rely on a past gen Mewtwo, not the Mewtwo we get in game which kind of kills the point.
3DS FC is 2981-6628-3468. Safari: Wooper, Camerupt, Gastrodon FSV: 3266 IGN: Alex (Duh) Currently playing: Pokemon X, Saints Row 4, KH 1.5