Riot... JUST BE FAIR!
Stop with the favoritism towards certain champions or playstyles. The fact you do this is what is slowly killing your game. Nobody likes being killed by edgelord assassins just because they have better numbers and better kits. Stop rewarding these kind of people because they will just jump ship to another game as soon as they stop being the most powerful champions in the game.
This game is too much "It's the champion, not the player"... champions don't allow much for individual expression and League is just becoming more and more about stats and build strength over actual skill. People play the same thing, the same way and copy the "pro" scene, playing whatever you cannot be bothered to fix at the moment.
Take some responsibility for this mess! Nerf down the damage on everything and let strategic intelligence, rather then muscle memory dictate who wins League.