kennen is a ranged dps champion so use this build if its what ur looking for
Mark of the Storm (passive)
receiving 3 Marks of of Storm, an opponent is stunned and Kennen receives 25 energy.
Throws a shuriken that damages the first enemy it hit for magic damage and adds a Mark of the Storm
Passive: Every 5 attacks, Kennen deals magic damage equal to 40 / 50 / 60 / 70 / 80% of his attack damage and adds a Mark of the Storm to his target.
Active: Surges electricity through all nearby targets afflicted by Mark of the Storm, dealing 65 / 95 / 125 / 155 / 185 (+45% of ability power) magic damage adding another mark.
Kennen moves very fast and gains the ability to pass through units, dealing 85 / 125 / 165 / 205 / 245 (+55% of ability power) magic damage and adding a Mark of the Storm to any hostile unit he passes through.
Kennen is refunded 40 energy if he passes through an enemy while using this spell, but can only gain this effect once. Lightning Rush deals half damage to minions.
Summons a magical storm that deals 80 / 145 / 210 (+33% of ability power) magic damage to a random enemy champion near Kennen every 0.5 seconds. This storm attacks up to 6 / 8 / 10 times and cannot hit the same target more than 3 times.
A Mark of the Storm is applied to enemies on the first bolt they are hit by.
please rate and comment if u like.
Suggest what i should try instead i will consider it :D