an open minded idea ( buff ) for the following

: CD reduction on Q or Resets for every kill and assist probably reduce the casting time ( flying up in the air) E buff would be aatrox does increased damage or takes less damage on units with empaired movement or units that has been hit with this ability and or aatrox gains bonus movement speed when moving towards or running away from units hit his ult should be buffed back to what it originally was in the pbe and has addition he gains armor and magic resist for each unit hit his passive could be buffed to deal % damage to nearby units if they chose to wait for him to revive.

make his current passive his q passive or ult passive and give him a completely new one also make him ranged with his auto attacks

actual ad scaling on his q and give his w a passive when its down so he can be useful without it maybe increase his base movement speed

make his spin reduce armor of enemy hits as a result remove his natural crit and his ult 3 seconds