Enemies hit by Kennen'sabilities receive a Mark of the Storm for 6 seconds, stacking up to 3 times. At three stacks, the marks consume themselves to stun the target for 1.25 seconds and restore 25 energy.
If the stun is applied more than once within 6 seconds, its duration is reduced to 0.5 seconds.
Active:Kennen transforms into a ball of electricity, rendering himself unable to use basic attacks but becoming ghosted and gaining 100% total movement speedmovement speed for 2 seconds, while also gaining bonus armor and bonus magic resistance for 4 seconds.
Bonus Resistances: 10 / 20 / 30 / 40 / 50
Kennen deals magic damage to all enemies he passes through, doubled against champions and restores 40 energy the first time Lightning Rush damages an enemy.