Illaoi is becoming Zed #2
Not OP, but super unfun to play against, horrible laning experience and feels frustrating to play against even if you are winning. Like fuck I had to constantly use my CC on 1/7 Illaoi because she would just shred our entire team with her ult if we tried any engage. She is not that hard to shut down, she is immobile, vulnerable to kite, but shit if she has more than 2 tentacle in a teamfight she can heal for all the damage you deal to her. The only counterplay she has when her ult is up is to run and hope she doesn't kill you before you get our of her danger zone.