What do you mean Aatrox is weak?

he's boring and outclassed by a lot of champions. He's also pretty much the definition of wasted potential. Just look at his vague lore that needs to be explained soon riot. It provides so much potential in his kit...yet his kit really doesn't have much to do with his lore.

Not weak, just disappointing

He's undeniably not in a good place. Riot admits it, they just don't know how to fix him.

Aatrox remains hidden.... but that doesn't mean he isn't strong, much like other organizations http://vignette4.wikia.nocookie.net/villains/images/7/78/Illuminati-Logo.png/revision/latest?cb=20150529234113

They can't buff him until his lane sustain gets gimped.

He isn't weak, he just isn't as strong as the ongoing FOTM champs.