High play rate should = a higher win rate
I keep on seeing on posts from Riot employees that a champion needs to be needed because it has a high win rate for people who play that champ numerous times. For example I saw on the patch chat they are needing Aurellion Sol because he has a 60% win rate when someone plays him 30 or more times. To me that makes sense, someone who has practice at something should be better then average.
's case, players with 15-50 games on him were averaging almost 59% win rates, with the win rate increasing from there.