Am I the only one who feels like keystones shouldn't exist?
I feel like those just make the game too hard to balance, if one keystone is too strong everyone will take it (thunderlord for now), and some keystone just have too much synergy with some champions wich makes them too strong

There will always be a keystone better than another/in a better tree, or a keystone that fits perfectly a champion so it's impossible to tottaly balance these new masteries... And these said masteries are so impactfull they can make a champion OP on their own, like it happened with Soraka, wich got her nerfed when she was a tottaly balanced champion before windspeaker appeared. I feel like masteries shouls be like runes, impactful but not to the point where they change a champion on their own...