Alright You've Run Your test..

can we plz have kha'zix the assassin back? The one that didn't do damage unless isolated early game but later evolved into a versatile, opportunistic burst asssassin?

Not this soft support jungler that gives his team AoE slows while having decent early game presence to get his laners ahead but no self power at all late game.

Get rid of the bonus slow, if you want to give it an evolved effect make it % armor shred or smth. Or Make it do buckshot style damage where it does more the closer you are.

I honestly think his ult shouldn't have stealth. It should just make him invulnerable to all projectiles and skillshots but still hittable by AoE damage/CC.