Kayn was overbuffed
Imo
Imo
nah
Kayn should not be able to burst a support with a spin, knock up and 1 auto... At evenly at level 6 full hp...
If he got Darkin by level 6 then he is clearly not even to your support. That actually sounds impossible to me. Base Kayn is just meh and he is so much worse until he transforms.
It was non-transformed. -_-
Okay that's impossible. Unless it was a Thresh with coin and no souls that just sounds completely impossible to have happen because base Kayn is not that strong.
Its possible building lethality runes would do the trick.
Even then it's completely impossible. Kayn doesn't do that much damage and if you are telling me they are equally matched in levels, that means Kayn doesn't have a lead in damage. Base Kayn is weaker on purpose to make up for his transformations. His W, his highest damage ability, couldn't make up enough damage to do what you are claiming. Q, W, and 1 auto doesn't have enough damage to really even half most people by himself.
He's barely even been touched since his release. Ornn on the other hand has been buffed a lot more than Kayn.
I just think he fell under the radar, and people are only now realizing how strong he can be in solo queue.
But honestly I am surprised how blue Kayn does so much damage after the bugfixes.