Aatrox was MASSIVELY overbuffed.
"Clunky" or not, he shouldn't be able to 100-0 his lane opponent with ease the instant he hits level 4 while being impossible to trade back against due to his free Death's Dance passive. I've seen Aatrox first blood every match he's been in since the hotfix buff and hardcarry the majority of them. Revert some of the buffs, Riot. Oneshotting, immortality, and high cc shouldn't be a package deal.