Possible fix for Illaoi?

We all know Illaoi can be pretty oppressive in lane, probably one of the worst bullies in the game, with insane penta potential if done properly, but her innate weakness keeps her from being a meta pick, ever.

I'd argue that her kit is indeed broken at this point.

One possible way to fix this, while also toning down how frustrating she can be, would be to remove the extra damage she deals when multiple tentacles hit the same champions. The damage would be fixed, but each extra tentacles would apply some kind of CC to the target. The target could be slowed when hit by two tentacles, with the strength of the slow increased with each point in her Q. When hit by three or more tentacles, the target is stunned, but would become immune to that stun for a few seconds.

It would increase her utility and give her some sticking power, while in return toning down her crazy damage. Her threatening presence in teamfights would translate to some damage and CC, instead of crazy but very kiteable damage.