I got it! I had to panic spend 50€ for Hextech Chests so I could get lucky with the champion shards. I got 5 of the boxes and got the Yuumi one
The Ultimate League of Legends Hextech Crafting Guide
League of Legends S8 Guide: How to Get the Most Blue Essence | League of Legends
moobeat on Twitter: "Hextech Mystery Champion Shard now up in the LIVE shop - 1700 IP or 195 RP for a random champion shard. https://t.co/3ArDYvCtaO" / Twitter
How to Earn Blue Essence in League of Legends
Hextech Crafting guide: Chests, keys and how to get skins - The Rift Herald
Hextech Crafting | League of Legends Wiki | Fandom
Riot Games reveals League of Legends loot box rates - The Rift Herald
You'd need to buy $17,000 worth of loot boxes to get every League of Legends skin | PCGamesN
How to get and use a Hextech Mystery Champion Shard - YouTube
Hextech Crafting for League of Legends Account Users – League of Legends Guides
i watched ~500 HEXTECH CHESTS being opened and here's WHAT I FOUND : r/leagueoflegends
moobeat on Twitter: "#pbe The upcoming hextech mystery champion shard now on pbe for testing (obv not final price but will be ip or rp) https://t.co/CawEyqL9RR" / Twitter
League of Legends Loot Box Drop Rates Revealed | Hextech Chests Season 8 Chances