I really don't like kayn's E(if thats his ability to walk through walls)

I don't know, I've never really liked hit. he can be a tank who is super mobile and great at ganks, or he can be an assassin who's super mobile and great at ganks. I can't remember how many time's I've invaded and fought kayn in his jg, only for him to get low, and then run through a wall where I can't stop him from escaping. It's super annoying, he's going to lose? E's away. and the amount of mobility and ganking potential it gives him is insane! Could you guys, idk, give it something similar to talons E? put walls on cd? I think it'd be nice to see that.