@Riot: Illoai needs to be put on the rework schedule
Illaoi is a very broken champion right now. She has little to no counterplay against some champs and some champs have little to none against her.
This isn't healthy gameplay by any stretch of the imagination. She has a great concept, but the execution is pretty bad.
Her Q is pretty unreliable since it's pretty easy to dodge with the amount of mobility in the game. Her W has the same problem on the tentacle strike. Her E is the worst of the normal abilities, it's effect is easily cleansed by numerous abilities and items in game. If you are able to hit the skillshot and damage fast enough to get the vessel effect, it shouldn't be able to be removed so easily. Her Ultimate needs completely reworked. It's so easy for enemies to just walk away, making it pretty useless in most scenarios. It would be better if you reworked it to affect a larger area where it roots all enemies in range for 3 seconds and does a DoT over that time. The root could be removed like any snare but the damage wouldn't be. I think this would be a much better and reliable ult to make her healthy.