“Kennen is just annoying in lane and hard to kill but he shouldn't really kill you either, early merc treads can be good since he has a lot of CC, flash E can also secure you kills in this lane, but you probably won't be going for many normal E's unless he gets out of position or you bait him in well. Both champs scale pretty decently in teamfights but he can't do anything against your splitpush pressure in a sidelane so simply push him in and look for roams and tp plays in the mid game.”
“Recommended: Sustain Runes & Teleport
Tips: W blocks his Passive W-AA. Dodge or Passive shield his Q poke. You can E him when he E's and he can't do anything except follow your champion (no AAs in Lightning form). This can be used to pull him under Tower.”
“Playing aggressive against him early and shoving him under his tower tends to be the better option, as he suffers from the same effect we have when pushed in. Side step his abilities and try not to get too close when you are hit, as he can stun you. If you are under your tower, and he decides to all in you with his (R) it would be wise to have a stopwatch in the early game, if you wanna be extra cautious. When he uses Zhonya's Hourglass and & tries to flash away shroom his feet immediately as he enters stasis as he nor any other champion can flash out of setting it off as they changed how it interacts.”
“Probably one of the champions that are best for teamfights. Even then he holds his own in Top-lane as one of the most annoying champions.
Set up a Freeze and Farm the Lane.
You can All-in him lv6 if he uses Lightning Rush to come forward.
Don't Ask for Ganks unless he is over-extended due to your Freeze or he can just Lightning Rush Away and you'll waste everyone's time.
You can now Parry the stun from his Passive which makes this match-up a bit easier.
“Kennen has good poke and a good stun. Be aware of the stacks of lightning on you, that's how you'll know if he's going to stun you. Just try to use your Q outside of his stun window. Use your E before or during his E to slow him down a good amount. If you're ever in danger and in his ult you can easily just ult away from him and get to safety.”
“This is one of the toughest matchups for riven because Kennen has a lot of stuns and can just E out your trades. Here you need to go for mercurial boots and hex drinker early if you want to get a chance to kill him.”
“Don't fight on the first levels.
Be the first to trade with your R.”
“He is really annoying and slippery. Will poke you early a lot so getting some sustain is a good idea. If you try to jump on him he will just stun you and E away. If his E is on cooldown and you are confident he can't kill you all in him then. Care for jungle ganks as his ult sets up ganks quite well.”
“Broken, obnoxious mage. Teamfight king and also extremely good at poking. Take aftershock and second wind and look for all-ins with your jungler. You'll be hard to kill but you have to get there first...”
“I haven't faught a top lane Kennen yet but I faced him as Ahri in mid once. His poke is dreadful even to her. This means hell for top laners. The mobility and poke Kennen has is metaphorical cancer. He also has a lot of stuns when he ults so Legend tenacity is a must pick rune. Mercs will help also.”