Illaoi Is Stupid
Illaoi is a stupid champion. Her kit is a terrible design. It is. She's a melee champ that does all her damage from range with almost no CC.
You used to be able to auto Illaoi to make her clone of a targeted champ disappear, now you can't. Her wave clear is beyond absurd early on and lets her basically shove into turret freely. It's risky as hell to gank her because her ulti will allow her to 2v1 easily or at least make everyone back off. Now is she busted?
Short answer: No. Is she overtuned? Yes.
Her kit is so bad that the only way to make her remotely viable is to keep her base and scaling values along with a shorter passive CD that it becomes so incredibly oppressive. These absurd numbers strengthen her terrible design kit. I never saw anyone play her before all these insane buffs, now I see her constantly. Her pressence is much higher and people have learned how abusive her numbers are.
Riot, you need to lower some of her numbers and not make it so being counter picked by Illaoi, or blind first picking her isn't so rewarding. Her kit needs to be worked at because it's terrible, and her numbers need to be lowered and offered counter play.