Idea for a partial Evelynn Re- work.

I am a HUGE fan of ! There are few champs I have as much fun playing with!

... Which is why it makes me sad to see her LONG history of crippling nerfs with her "Permanent" stealth being the go to excuse for why she'll never be balanced! This is my idea for a minor shuffling of her skills that would stay true to her Shadow assassin identity, and end this perma-stealth (Which I argue is nonsense!) debate once and for all!

I'd take Shadow Step and Dark Frenzy and shuffle them up as following.

[Edited after some input from others]

New Passive: Dark Frenzy - Hitting a target with an auto attack or ability grants Evelynn 10% movement speed, stacking up to 5 times. One stack falls off every 3 seconds, and restores 1.5% of her missing mana.

New W: Shadow Step - Cost - 30 mana, CD - 15 seconds (Dose not begin until stealth ends.)

Passive : Hitting a target with an auto-attack or ability reduces the CD of Shadow Step by 1 second.

Active : Evelynn enters a state of stealth detectable only by true sight for 10/20/30/40/50 seconds. This stealth is broken when she takes damage or uses and auto attack or ability. If Evelynn breaks her stealth with an attack or ability, It deals an additional 5%/10%/15%/20%/25% true damage on hit.

Thoughts?