Game is ruined for the casual player

I'm an older casual player (normal draft and aram) with a decent amount of money invested into game for champs and skins. But this new runes/mastery idea is terrible. I was a 50/50 player at best but now I'm a 10/90 player. Not sure what the hell you did but getting 2 shot by a number of champs is getting old. You ruined a good thing with this new platform. Maybe I'm wrong but I feel most of your casual players do not like this new gameplay. Lets change it to World of League, that's what happened to WoW, dumbed it down. And the blue essence thing instead of ip, not good either. Just my 2 cents but I think I will look for another game to play because you are ruining this one.