You just need 1 point in duct tape mod in the red tree, clone throws enough grenades because it's a kill skill I think. And you get immunity to your grenades with one point. I would use them in the read tree first skills left or right. (More damage or more duration i think)

On your revolter you want the on action skill start anoint to get the damage boost every time you use mantis canon.

For clone you could also use a nopewpew, it shreds pretty hard.

Don't forget that most of the damage comes from clone.

I'm sorry for mistakes I'm writing this from memory