Riot pushed a secret change to Kassadin's ultimate and players are stating it as a major nerf - GameRiv
Patch 13.3 Preview: Aurelion Sol Rework, Support Buffs, and New Nerfs to Xanthe and Kassadin. LoL news - eSports events review, analytics, announcements, interviews, statistics - eO3Vsp8tr | EGW
The items that made Kassadin get nerfed also got nerfed so now Kassadin is pure dogshit, thank you riot so nice actually. : r/KassadinMains