Riot pushed a secret change to Kassadin's ultimate and players are stating it as a major nerf - GameRiv
Kassadin nerfs : r/KassadinMains
I love this new Kassadin Passive Nerf : r/KassadinMains
Kassadin is too strong in lane, specially against melee champions" *Proceed to nerf passive* : r/KassadinMains
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