An idea for Aatrox maybe
So with the new Aatrox being centered around building health so you can tank and not get burst down quickly, he then lacks the option to build attack speed to get the third proc off his w cause it will just cost a lot of gold. So could riot add an item that gives health and attack speed for Aatrox to help him out? Sort of like Viktor where it has different tiers to buy, but instead of upgrading his abilities it just helps him be more cost effective for a bruiser build with that attack speed and health. I mean just call it the Darkin Blade or something, but it helps him dive in and get a kill rather than diving and dying instantly, or diving and slapping the enemy with a slow wet noodle since you aren't building damage as a tank.
(I think the only item in the game that gives attacks speed and health is trinity force but I may be wrong on that, also maybe some damage on it too and just balance the tiers into early mid and late game)