First time i played vs Kayn

So he seems fun and dare i say balanced, althought one problem i have with his is that he gets healed when he posseses you. Feels little too much, its already sorta dash, zhonya, damage. Kinda like Fizz playful trikster except slow effect exchanged with self heal. Didn't have a chance to check if Greviouse wounds effect works against it, if os then its not that bad.