Here's an idea
Remove keystone masteries from the game.
I'm done with everyone being op with fervor, I'm done with soraka being nerfed every patch because of windspeaker when she was totaly fine before that, I'm done with damage over time mages dealing 25% of your health with deathfire touch, I'm done with warlord yasuo, I'm done with grasp of the undying tanks top lane that can burst you, I'm done with strenght of ages jungles that get to 2000hp without a single hp item, I'm done with thunderlord poke, I'M DONE WITH ALL OF THEM. We didn't need that, they are just making balancing even more hard and we can't afford to have another factor influencing balance in a wrong way at the moment. Hell, some metas even took place just because of those masteries. Cancerlord meta in the beggining of the season, then it was grasp and sunfire+iceborn, and now its been fervor for a while. And some champions abused those keystones so bad I don't even know how to explain it (see
)
And most of all, I'm done with being totaly wrecked in lane because I forgot to change my masteries. Before you could just play around it, ''well i have my tank masteries on my mage oops haha just going to play a little passive till i get some AP'' but you just can't beat Thunderlord Ahri if you are bond of stone Lux because her poke and burst will always have an advantage over yours.
I could make another paragraph on how fun it is to lose half your health to a Leblanc using her Q+W at level 2 with thunderlord, but i'm gonna stop here.