Aatrox needs a tiiiiny bit more help... I think...
I've played a couple dozen games with him, and I think Riot needs to add to his kit a bit more.
First of all, his Q. Yes, you gave him range, yes his damage is rewarding when you hit the sweet spot. But why does it go on cool down when you are reviving? You're not dead yet, evidently, he's still walking around. I mean, yes, logically if you get killed you stop mid way of whatever action you were doing, but why does it go on cool down? If anything the timer to use the next Q should keep ticking. This is assuming Aatrox dies when using his first or second Q.
Second of all, Aatrox is "The World Ender", not some bloke who says "kill me please". Why can't he heal for a smaller portion of his bloodwell if he doesn't die in the duration of his ultimate?
Just my thoughts.