Illaoi's E is so overloaded it's insane.
I don't care how easy it is to dodge. I get hit by this shit in lane, and it's either take 400 damage, or miss 3 minions + of xp trying to run away from that shit. Stack that with a slow, and tentacles which spawn and try to wack the shit out of you when trying to cs. Try to fight it, well now Illaoi does 130 percent damage to you. Sure, the duration decreases when Illaoi is damaged, but by the time she's W Q'd me and the spirit, I've pretty much took 400 + damage trying to protect myself. Additionally, Illaoi can do this all from the safety of her minion wave, so even if I do try to fight it, I'm taking the damage from the echo, the damage she's doing to me, and the damage from the minion wave. Honestly don't give a fuck about how she's able to two shot me and my jungler by pressing e and r.
The ability is also unbalanceable. Remove the shit coming at me from leaving the radius, and getting hit by the ability has no reprecautions. Her E needs a complete rework,