Kha'Zix Ability (LoL): Void Assault
Void Assault Kha'Zix
R
Cooldown: 100
/ 85
/ 70
Cost: 100
Active: Kha'Zix becomes invisible for 1.25 seconds and gains 40% movement speed. Kha'zix may Recast this ability once within 12 seconds.
Evolved: Invisibility duration lasts 2 seconds and gains a second cast.
Kha'Zix's Abilities
If that's the case, the same rule should apply to it if you have a evolved ability or not, after that 10 second window, poof. So you have to be really good at utilizing it. The DMG reduction is nice, though.
I don't know, if they were to drastically reduce it's cooldown, or increase cost and remove the cooldown all together, then sweet. Personally, I would take this over the volley, but i can understand why most don't.