Other game modes (Not SR)

Well, ARAM I don't see why you would get champion mastery, cuz everything is always teamfights

Dominion you just have to run around well enough to capture objectives, not really learning champ

They gotta fix the other shit in Twisted Treeline before they even consider anything else.

EDIT: Okay, so I can be fair here, I don't play dominon much, and the few times I do, its with bots. So sorry for generalizing it in such a way

Ascended