Plat top main playing Aatrox for the first time...
Sure, I got fed and won lane pretty hard but after that it was a struggle. What is his purpose? What does he actually contribute? How do you even build him? I played a couple games, and no matter what he felt lacking. When I built him Bork + tank, he felt like he had no damage and still didn't feel tanky. When I built him with a little more offense, he just exploded despite having additional life steal.
What's his deal?
is your best bet if you need armor and it is great for engaging on the enemy. Anyway, good luck.