Evelynn Ability Idea

Given that Evelynn's current 5th Body status stems from the inability to balance damage with permanent Stealth, I'd like to throw my solution into the ring here.

What if the Stealth triggered like KhaZix Ability, where she could recieve it in bushes, and it would last for an extended 1.25s or so when Evelynn comes within 700D of an enemy Champion? Also, we can possibly keep the mana regen bit in too.