No he is healthy because he is melee champ.
So, who fed Kayn to a 14min(at the latest) Shadow transform? Its pretty hard to die to base form Kayn.
But in the event that it happens, yeah he powerspikes for a few minutes.
Doesn't make him a good champ, he's by far the worst assassin in the game, having the lowest damage of any assassin, and no escapes, any enchanter, Locket, GA, Zhonyas make Shadow Assassin Kayn about as valuable as a portable ward.
I think of him as a fusion of Hecarim and Zed. He has the playstyle of Zed, with the map presence of Hecarim. But like....1/4th the combat potency of Zed.
More just a comment of how absurd that damage was, but power/mobility creep has been problem for a 2 seasons now
That Orianna was overextended. There's nothing to see here.
I was just spectating a friends game.. that damage is absurd