Apparently the Eternals Mastery Emote upgrades 3-5 are in the game files : r/leagueoflegends
League of Legends' Eternals Guide: Prices & How to Use Paid Achievements
Mastery 7 Emote - League Of Legends - Sticker | TeePublic
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Champion Mastery Guide – League of Legends Support
Champion Mastery Guide – League of Legends Support
Champion Mastery | League of Legends Wiki | Fandom
Surrender at 20: Red Post Collection: Champion Mastery Q&A
The Complete League of Legends Mastery Overview | GooseSmurfs
Finally got the third tick for my mastery last night! : r/xayahmains
How to show mastery in LOL (League of Legends)?
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Champion Mastery in Wild Rift – Wild Rift Beta Support
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NEW Mastery Upgrade - Full Eternals 2 List for All Champions - League of Legends - YouTube
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Eternals FAQ - League of Legends – League of Legends Support
Eternals FAQ - League of Legends – League of Legends Support
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