Mark of the Storm stuns an enemy after 3 marks; use this to burst down enemy champions or to set up other forms of damage.
Thundering Shuriken deals plenty of damage to harass the enemy lane champion.
Slicing Maelstrom, Kennen's ultimate, is great during teamfights if you can get in the middle of the enemy formation. It provides AOE damage around himself.
Q: How can I make the best use of Kennen's Ultimate?
A: Kennen's Ult can single handidly turn the course of a teamfight. It deals massive AoE damage and can easily stun the whole enemy team. To maximize his Ult, you need to dive right into the middle of the enemy team. Include Zhonya's Hourglass in your Kennen build to keep him alive when you dive.
Q: Is AD Kennen viable, or or should I only play AP Kennen?
A: While AP Kennen is often the better choice, AD is still viable. His auto-attacks can stack Mark of the Storm, especially if he has a lot of attack speed. Furthermore, his Electrical Surge ability stacks damage faster with AD than with AP. That being said, all of his abilities scale with AP.
LoL Kennen players will find him to be a dynamic champion to build out properly. You will see that his build is modified when he is playing against either well-rounded or homogenous team comps, showing you shouldn't choose the same Kennen build every game of League of Legends
The most critical items to include in your champion's build include: Hextech Rocketbelt, Rabadon's Deathcap, and Zhonya's Hourglass. Players who included these items in their builds had a much better winrate than players who utilized other Kennen builds. Similarly, if you are fighting a varied enemy team comp, you should strongly consider getting yourself the Precision, and Resolve runes. In recent games, he won the largest fraction of his matches when built with these runes.
We established our Kennen build suggestions by examining 14,527 recently ranked League matches with him in them. We only advise the top winrate Kennen builds that have been built by ranked LoL players enough times for us to reccomend them. With so many games in our data, we are quite confident in our suggested builds.