Aatrox is very viable and strong. try this build before complaining

titanic, warmogs, mallet, guinsoos, cleaver, boots (sell oobts for zzrot lategame)

masterys 4% speed, feast, natural talent, battle trance, armor penn, fervor. 5% armor, bush speed, 8% healing, fearless

runes attackspeed red. scaling hp yellow. scaling mr blue. 10% scaling cdr quints (2) 5% attackspeed quints (1)

with this build. you provide just as much tankyness as a tank, decent engage, decent splitpush power (40% dark flight cooldown) and overall your super strong

honestly i feel aatrox isnt even weak right now. theres tons of power in his kit with this tanky build and its even better with the guinsoos buff