Make Lifesteal only work on Aatrox's W heal and have the strength of W tied directly to his well
This would allow them to buff him and manage him a lot easier
Possibly make it so instead of straight up reviving, he drew from the Well whenever he used his W heal and the heal would increase with Lifesteal and AD and missing health. Getting lowered to a certain threshold would just give him a shield equal to his Well and increased healing.
Aatrox should honestly be more about being a Sustain based Fighter instead of Botrk + Full Tank.
basically, do what you did to 
but to 
