Using "Total Mastery Score" to limit smurfs and/or new players in ranked.
Thinking along the lines is not hard to get 20 champs on your way of getting to level 30. Thats why i think there should be a limit of champion mastery score before you have access to ranked queue. It will also limit the amount of new players from getting level 30 and diving straight into ranked queue without a clue of what is going on making games less stressful and less toxic. Seeing how you only need 20 champs to play ranked queue i belive they should set the limit at atleast 50. Thats only 10 champs out of the 20 needed to be level 5 and making them know and learn 5 champions ready for ranked queues.
Thanks for your time -quazer