@Riot have you ever tried or thought of removing lifesteal from the game?
I don't mean the lifesteal mechanics of Aatrox, Xin, Irelia, and others like that, I mean lifesteal from bloodthirster and stuff.
It would make this game a little more strange to see how ADCs cope without lifesteal. And not just ADCs, but some fighters as well.
I mean there would need to be balance changes as well(Rammus, Thronmail) but it would be a strange direction.