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Viego's win rate is abysmally low, following his League of Legends release
Patch 11.23 Rewind: Top 10 Champ Stats by Rank (Kills, Win Rate, Deaths, and More) - Mobalytics
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I was bored so I made charts for all the champions based on their win rate and pick rate across all ranks in the lanes they are played. : r/leagueoflegends
Graphics] One-trick win-rates for every champion (except Tahm Kench), plotted against Plat+ win-rate, pick-rate, and ban-rate : r/leagueoflegends