Champion Mastery - a statistical analysis of 1M+ games : r/leagueoflegends
LoL Mastery Chart: How to see your most-played champions, all the champions in league of legends - thirstymag.com
Champion Mastery | League of Legends Wiki | Fandom
How to use MCOC AuntMai | Marvel Contest of Champions - YouTube
League of Legends - Mastery Guide // Champion Points farming, and how you can get a S+ in every Game - YouTube
How to Get S Ranks in League of Legends | Dignitas
dev: Updating Champion Mastery - League of Legends
I made a tool that allows you to find the mathematically correct build for any champion (also includes a Practice Tool simulation where you can attack any champ instead of a dummy) :