I've been playing League for a little over 4 years. I own all the champions. I played every champion at least once but I've never played Xerath -- not even once. TBH,
Champion Mastery | League of Legends Wiki | Fandom
Apparently if you own a free week champion you still can't obtain mastery chests in ARAM : leagueoflegends
Champion Mastery | League of Legends Wiki | Fandom
Champion Mastery Guide – League of Legends Support
How to unlock Mastery 6 for a Champion - League of Legends - YouTube
Champion Mastery FAQ - GARENA LOL SUPPORT
Surrender at 20: Red Post Collection: Champion Mastery Q&A
Champion Mastery FAQ - GARENA LOL SUPPORT
Champion Mastery - Leaguepedia - Competitive League of Legends eSports Wiki
Eternals FAQ - League of Legends – League of Legends Support
Hextech Crafting FAQ – League of Legends Support
Champion Mastery FAQ - GARENA LOL SUPPORT
Surrender at 20: Red Post Collection: Champion Mastery Q&A
You can see others Champion Mastery points too (all, not just the 3 Top and 8 In Progress) instead of your own under "Champions" tab: leagueoflegends
Champion Mastery FAQ - GARENA LOL SUPPORT
11 Reasons You Are Not a Champion — How to Achieve True Mastery | by Daniel Donche Jr. | Medium
Champion Mastery | League of Legends Wiki | Fandom
Recovery mastery — Marvel Contest of Champions
dev: Exploring Eternals – League of Legends
Champion Mastery FAQ - GARENA LOL SUPPORT
