Ok, so this might have been posted but there was like 5 million posts( because this is a really cool idea ) but here goes.
What about a power set called shape shifter.
You could make yourself look like one of the baddies and you could walk through groups of mobs and not be bothered.
Also a power where you steal the powers of the targeted enemy and they are really weakend. You could use all of their attacks at a lower end cost.
A power that you could call clone where you clone some one on your own team where you have all their powers temporarily and the person cloned has a slight debuff.
Anyway, I don't have much more than that right now, but might think of some later. If some one already posted something similar sorry.
