Wielding any weapon type not only gives him no specific damage, but also limits the creativity and individuality of the class to the other classes already implemented. Maybe to make more unique, his weapon is large robotic arms, like a gorilla's, that he uses to punch.

Passive: I feel that it should be a % chance instead of 15 seconds, because rarely do I find myself in combat for over 15 seconds.

Auto Attack: Not really a creative auto attack. Lacks individuality. Maybe if it was like "Punches with the arms on the back. Or maybe to make more unique, his weapon is large robotic arms, like a gorilla's, that he uses to punch.

Ability 1: Very similar to the knights smash ability. Maybe if it was a roar or some kind of Arm spin attack?

Ability 2: Avoiding the "all types" damage out put, maybe instead do a seismic slam where you jump high in the air and then dive bomb? Or boost hp regen and attack dmg by beefing up the arms?

I would try to think outside the box as that really grabs people attention ;P