I'm glad to see the old runes go
Runes add massive amounts of power to champions based on early (flat) or scaling runes. We will now have a more accurate representation of champion balance and maybe people will understand how toxicity designed some of these champions actually are. Vayne for example can build pure tank and max her w and 1v1 anyone in the game with ease. Cho goth has had one of the most toxic reworks to his kit ever to exist.