One nerfed LoL champion has the second-highest win rate in high ranks in Patch 13.5 - Dot Esports

How the tables have turned.

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League of Legends patch 12.11 notes: Bel'Veth release, Taliyah & Olaf nerfs after durability update - Dexerto

Highest Win Rate Champions in LoL Patch 12.14

Patch 13.5 notes

LoL Patch 13.19 Early Notes: Champion Buffs and Nerfs

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13.20 Patch Preview : r/leagueoflegends

One nerfed LoL champion has the second-highest win rate in high ranks in Patch 13.5 - Dot Esports

League of Legends Patch 13.19 Brings Major Champion Changes - Esports Illustrated

One nerfed LoL champion has the second-highest win rate in high ranks in Patch 13.5 - Dot Esports

The winners and losers of League of Legends Patch 13.5 - Dot Esports

Patch 13.6 Notes : r/leagueoflegends

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Aurelion Sol, AP Twitch, and Gangplank among 7 champions getting nerfed in LoL Patch 13.5 - Dot Esports

Average win rates can't save Sion, Rengar, and 7 more champs from LoL Patch 13.14 nerfs - Dot Esports