Kha'zix ult rework idea

Ok, so we all know Kha zix needs some love by riot, and riot probably won't read this, but I came up with a rework for his ultimate:

What if when you press R, you become invisible for 5 seconds, gain movement speed(as always), but kinda like Rengar, you have a little ring around you so when you click a champion in range of that ring, you dash to that champion, and once you get to him, Kha'zix slices the enemy champion up. This ability deals more damage if isolated. It could also have this Cool animation, like the old Fiora ultimate.

Animation: Kha'zix dashes to the champ targeted, lifts him airborne, and slices him once, pops invisible, pops out and slices him again.

What do you guys think?