Items and base stats.
I'm done with this game, simply because you cant play what you want, you cant go tanky if you are X champion, but Y champion is tanky no matter what they build, base stats need to be near meaningless mid-late game, no reason one champion should be tankyer then another that happens to have more gold and more defence items. items need to be everything and its not, thats what used to make this game so fun.
RIOT stop being fun killing bastards that want to control how every champion is played.
i should be able to play tank ashe if i wished.