Can we talk about how broken Kayn is?
The champ is literally the Janna of jungle, you can't invade and kill him early game because he will use his E or Q to run away, and there aren't any junglers that can 100-0 someone level 3. His early game isn't even that terrible. His E allows him to bypass wards and gank fairly well. Both of his forms are busted, Rhaast has high sustain, cc and untargetability, and nobody buys grevious wounds around the 10 minute mark. SA Kayn also has little counterplay to his blue smite ult WQ oneshot combo, there's nothing you can do as a squishy other than hug your support and hope he doesn't right click you as soon as he pops out of a wall, because without huge shields, he will oneshot you while zooming through walls at 600ms. Kayn doesn't even take skill to play for how busted he is.