Riot should start locking new champions in ranked

Ranked is basically there for people to tryhard in, why are people allowed then to play champions that they have literally never played before. Essentially, in a mode where to goal is to play optimally, playing a champion that you have never played before is by definition, sub-optimal. A simple fix would be to lock all champions that you arent at least mastery 3 on. With a flat time for new and reworked champs. This way, you can not only learn the champ, but people can learn how to play against it if its super broken.
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