Thinking about it, why can Kennen still use his ult in Zhonya's?
Ryze's ability to use his ult while in zhonya's was removed because it was too powerful, but here we have Kennen who has ALWAYS been an annoying little rat able to chain stun an entire group while taking no return damage just by flashing into the enemy team and pressing two buttons. I've never liked Kennen and always thought he had a problematic design but no one plays him hardly so we overlook him, but this I feel needs at least some consideration considering the scope of the effect on his abilities.
can. It's their job to engage and run in to enemies. Without it they'd just be inting. That's the opposite of what Ryze does. Ryze sits far back and throws in shots from a safer distance. The ult zhonyas was just giving him far too much safety on a champ that is supposed to be in real trouble when caught out