Possible Aatrox rework?

I don't make champions or reworks, this is just my own ideas that could possibly work for a better skill set for Aatrox. These aren't leaked abilities but I would like to see some of these things put into Aatrox if possible.

Passive: ally champions near you (including yourself) under 30% max health gain increased attack speed and ability power or attack damage

Although resurrecting and bonus attack speed and damage is fun, it just feels underwhelming. Early game it takes too long to get up to, plus if you played Aatrox for the resurrection, Anivia's, Zac's, Sion's, Karthus'es, and Kog'maw's passive all are guaranteed after a timer or after every death. Another note Aatrox's lore said he was able to turn the direction of a war just by being there, this seems more fitting.

Q: disappear into the ground, blink to target location, then reappear dealing a 1 second knock up followed by a 1 second slow to all enemies hit.

Even though it wouldn't be a "dark flight" it would give a higher chance for cc and a better explanation for a knock up while still being the scary demon guy. I would think it should do little to no damage but have a low cooldown, to give some way to engage into a fight better.

W Off: every auto attack restores 3% max health W On: deal 20/40/60/80/100 (+attack damage)

E: Same as current, but higher damage and/or slow

With all of the other abilities, a skill shot like this heals appropriate-ish, though it definetitly needs a buff to work.

R: same as current, but gain a shield that stacks per enemy champion hit, each stack is equal to 5% max health.

What use is an ultimate if you can't use it to be suicidal? Now you can jump into a team fight and be the tank your team needs.

Building tanky would be better because most of the moves scale with max health. He would be able to Q then R into a large group and distract the damage from allies to him, unlike if he were to build full damage. I sure like these ideas, but they probably have thier flaws that would make them unworthy. What do you guys think about this?