Silence is (too) deadly: Riot explain crowd control nerfs in League of Legends | PCGamesN
Riot pushed a secret change to Kassadin's ultimate and players are stating it as a major nerf - GameRiv
The Kassadin Kill Range Nerf
League of Legends patch 12.8 official notes: Swain mini-rework, Kassadin buffs, Jinx nerfs, and more
Wild Rift - A beginner's guide to Kassadin
Akshon Esports on Twitter: "While not as big as the balance changes to Senna, Kassadin is also being given a few nerfs aimed at lowering his early to mid-game power in Patch
Kassadin Skins | League of Legends Wild Rift - zilliongamer