Bramble Vest?

Hello there, i'm here to talk about this amazing new item bramble vest, with the release of this new item it is all i have seen top lane. I am an Aatrox main and it is hard enough to play this champion as is but with the release of this item it makes it even harder to play him because it makes it impossible to sustain. I played a game where the whole enemy team built thornmail and that is kinda ridiculous if you ask me. Aatrox relies on sustain but having the enemy top laner build bramble vest first item every game makes it impossible to play this champion anymore, its bad enough that aatrox is the second most underplayed champion but now it is making the last of the aatrox players not able to play there champion anymore. So i had an idea bramble vest was a good idea (kinda) but making it apply grievous wounds every time you auto makes it impossible to play a champ that needs to sustain such as aatrox, so instead of making it every 1 second make it have a cooldown or something such as every 3 autos it applys grievous wounds then for 4 seconds it wont apply it.