Passive
Hitting enemies with abilities places a Mark of the Storm on them for 6 seconds. At 3 stacks, the enemy is stunned for 1.25 seconds and Kennen gains 25 Energy.
Stunning an enemy multiple times within 6 seconds reduces the stun duration to 0.5 seconds.
7s 60
Throws a shuriken, dealing magic damage to the first enemy hit.
12s 40
Passive: Every 5th attack deals bonus magic damage and applies a Mark of the Storm.
Active: Shocks nearby enemies afflicted by Mark of the Storm, dealing magic damage.
9s 100
Transform into an electric ball for 2 seconds, becoming unable to attack but gaining 100% bonus Movement Speed and dealing magic damage to enemies he passes through. The bonus Movement Speed is doubled during the first 0.5 seconds. Kennen gains 40% Attack Speed for 3 seconds upon exiting Lightning Rush.
100s
Summons a storm that grants Kennen Armor and Magic Resist and deals magic damage every 0.5 seconds for 3 seconds.
Each subsequent bolt against the same target deals 10% increased damage.
Only applies 3 Marks of the Storm to a single target.