Not Updated For Current Season
The masteries shown here are not yet updated for the current season, the guide author needs to set up the new masteries. As such, they will be different than the masteries you see in-game.
So, this is my first build. It's far from perfect, since i'm not 30 yet and have not been able to test out different mastery, but what you see right there is what I'm expecting to go for right now.
About the rune, this is not the best combination, since i use this rune setting for different character I play, but so far, it work good enought for me.
What I'm trying to say is that this won't be the ultimate build for kennen at all, it's just the way i play him. I wont be repeating anything much about the usual way to play an AP kennen, since i do the same.
What's new about this built is it make use of the new Malady update. The new Malady is one of the good ealy item to get as an AP kennen. It provide you with attack speed and AP, plus a on hit effect that lower target magic resist.
With his passive that make you throw a thunder shuriken every 5th attack that gives a mark of the storm, its just a great addition for faster stun early game.
It also make it easier to last hit minions and get that fast extra cash early game.
As i said before, the rune choice or the mastery are not perfect, and I'm not hoping to get top rated build.
I'm just trying to get opinion from other AP Kennen about making use of the new Malady.
Please don't hate me. And sorry for the spelling, english is my second language.