Idea for Riot developers
Require that you have to play against the champion you created 100 times before it gets released. See if its something that would ruin the game or not. There are a lot of champions COUGH EVERYTHING CERTAINLYT HAS CREATED COUGH that i think would fail this test.
I am not talking about some random riot tester, i am talking about the developer themselves because in the end it's their creation they should take responsibility for it.