Once again new is not better, the bunggling of Aatrox
Welp you screwed the pooch again riot reworking someone that only need minor fixes in this case, Aatrox.
Here's the problem and how to fix it. his rework removed something essential to his staying engaged, attack speed. like jax he WAS rewarded for staying in combat by accumulating attack spd based on his bloodwell. this allowed him to proc his Ws more often and generally keep up with other fighters/duelist that have better sources of pop and sustained damage.
Now he is completely dependent on rushing attack spd items. before he gets his R he has to land a total of 9 attacks to fill that well. his ult helps a bit, in a duel its still 6 attacks but the ult attack spd buff helps this a lot. while the damage buff is nice the fact that he gets more of what he already needed (attack spd) is kinda worthless since its such a uphill climb to get there in the first place and it simply makes him more dangerous in a situation that any intelligent summoner would disengage at (let's keep fighting that guy that won't die).
So all you guys have to do is (and i love badgering you all with this word) rollback, at least somewhat, his passive. sure keep the damage bonus on fill if you want but give him attack spd buff for how much it is filled not when it is filled.