“Blue kayn is scary, red not so much. Consider red smite to avoid one shots, you win fights pre 6 so look for these if you can. Might want to go deadmans 2nd in this match up. Remember he can dodge your ult with his own, and he can go through walls to safety as well. relatively hard match up in my experience. ”
“Only fight Kayn if he is not ahead, safe your ult when he ults you.”
“Strong guy. Nice clears, nice duelling and strong invades. CHECK OUT HIS KEY RUNE. If he uses Dark Harvest you should be with electrocute camping the sh1t out of his jungle and kill him, like, 3 million times per minute.”
“Press W if he uses his Ult on you to safe your Ult and E Duration. Blue Kayn's Damage can be Meditated however if he is very ahead it could be hard to react you can also dodge his spells with your Q. Red Kayn can be harder to deal with the later the Game gets, try to avoid his knockup or fight him after he has used his ult.”
“Not bad until he hides in your ADC.
SHADOW: He's really annoying with his super mobility. Hard as hell to outplay, Q him if you're lucky enough to hit it otherwise just cry on him.
DARKIN: Much easier to outplay, he's immobile. Easy to land Q's, don't 1v1, either of 'em don't feed.”
“Kayn got not enough damage to kill you early in my opinion. You can easily win trades if you play this matchupe while staying on range. If he gets close to you try to dodge his damage output with your rappel. If he gets ahead somehow you should prevent fighting!”
“This match up is Graves favored. You should always be able to 1v1 Kayn as long as you are not staying next to a wall so he can surprise you with his E and that you always dodge either his Q or W with your E. Tip try to hold onto your W untill after he used R on you. ”
“Even though I think this matchup is really easy, as you just have to early counterjungle him, he can be quite annoying if he gets his form, so care about it if he gets it!”
“Not too bad of a match up until he transforms into Rhaast, however, it is hard to punish Kayn outside your spires so avoid fighting him then so as not to give him free transformation stacks. If he transforms to Rhaast you won't be able to fight him, but he is vulnerable to crowd control as he can't heal if he is stunned and becomes very squishy. Look to CC lock him if you have your team around, otherwise avoid fighting him.”
“Not that strong in the meta, but red kayn is a big counter to you which makes him unkillable, makes sure to build Executioner's Calling to reduce his healing and for blue form try to stack hp with armor like steraks and thornmail”