[Gameplay] Sated Devourer - Aatrox and something about his Q skill

So I like to play Aatrox from time to time, but the fact that he is so underpowered at the moment and a lot of champions kind of counter him or kite him very easily makes him a lot harder to win with, but he also has some throwbacks. For example - with the sated dev. Aatrox's W doesn't heal him sometimes or it doesn't deal the bonus dmg (at least that's what I encountered some time ago - correct me if I'm wrong). Also, I think his Q should be immune to CC because let's say thatf you go to gank a vayne lane, she can E while you are mid-air in your Q and the "gank" is kind of over... And in late game, if you can't get your Q to get her airborne, you won't even be able to get a hit on her.