Why doesn't Kha'Zix have a kill-counting system similar to Rengar?
Kha'Zix was always described as the Void Predator who devours as much as possible to fuel his rapid growth. And he does show the latter half of this description; as he levels up, he can evolve different traits (abilities), but he does nothing to really sell the whole "devour" thing.
Dunno, thought it would be cool to implement a system that really plays on his theme as a "predator", as if his kills were meant to feed himself and his growth.
