Apparently the Eternals Mastery Emote upgrades 3-5 are in the game files : r/leagueoflegends
League of Legends Wild Rift - Champion Mastery, explained - Pro Game Guides
Champion Mastery in Wild Rift – Wild Rift Beta Support
What are Mastery Emote Upgrades? : r/leagueoflegends
Champion Mastery | League of Legends Wiki | Fandom
LoL: Track Your Champion's Progress with Eternals
STL file M7, M6, M5 Champion Mastery - League of Legends・Model to download and 3D print・Cults
Wild Rift patch notes 2.0: additional of 5 Yordle champions, mastery emotes and more - Not A Gamer
League of Legends Champion Mastery Level 6 and 7 Emotes — A How-To Guide - YouTube
3D file M7 Champion Mastery - League of Legends・3D printable design to download・Cults
Champion Mastery | League of Legends Wiki | Fandom
I just spent 2 hours of googling "how to get big mastery 7 emote" just to realize that the lower the resolution the bigger the emote : r/leagueoflegends
Wild Rift patch notes 2.0: additional of 5 Yordle champions, mastery emotes and more - Not A Gamer
Mastery 7 Emote - League Of Legends - Magnet | TeePublic
Finally Riot Told Me How To Get The Upgraded Mastery And Gave Me My Eternal Reward!!! [Deutsch] - YouTube
Riot Xenogenic on Twitter: "Got my first mastery upgrade from Eternals - again, surprised it's on Fiddle, but I just can't stop playing him. How many of you have some of these
Surrender at 20: Red Post Collection: Champion Mastery Q&A