Innate:Kennen'sabilities apply a stack of Mark of the Storm to affected enemies for 6 seconds, stacking up to 3 times, with the duration refreshing upon applying the second stack. Upon applying 3 stacks to a target, the stacks are consumed to stun them for 1.25 seconds and restore 25 energy.
If the stun is applied to a target more than once within 6 seconds, its duration is reduced to 0.5 seconds.
Passive:Basic attacks grant a stack of Electrical Surgeon-attack, stacking up to 4 times. At 4 stacks, Kennen's next basic attack consumes all Electrical Surge stacks to deal bonus magic damage and apply a stack of Mark of the Storm to the target.
Active:Kennen transforms into a ball of electricity, becoming unable to declare basic attacks but becoming ghosted and gaining 100% bonus movement speed for 2 seconds. Lightning Rush can be recast after 0.5 seconds for its duration, and does so automatically after its duration.
While transformed, Kennen deals magic damage to all enemies he passes through, halved against non-champions, and restores 40 energy if he damages at least one enemy.
80 / 120 / 160 / 200 / 240 (+ 80% AP)
40 / 60 / 80 / 100 / 120 (+ 40% AP)
Recast:Kennen ends Lightning Rush and gains bonus attack speed for 4 seconds.
Active:Kennen summons Shuriken Storm, a magical storm around himself for 3 seconds, gaining bonus armor and bonus magic resistance and striking bolts of lightning down on all nearby enemies every 0.5 seconds, each bolt dealing magic damage.
More than just the lightning-quick enforcer of Ionian balance, Kennen is the only yordle member of the Kinkou. Despite his small, furry stature, he is eager to take on any threat with a whirling storm of shuriken and boundless enthusiasm. Alongside his master Shen, Kennen patrols the spirit realm, employing devastating electrical energy to strike down his enemies.
High Command's public stance towards ninjas are joking-to-nonexistent, as this is a war of modern weapons, not medieval flights of fancy. Privately, they deploy Kennen to hot zones in the deep Arctic, relying on his finely honed ninjitsu and deadly precision.
A kingslaying demon summoned on the night of the Blood Moon, Kennen's purpose is to depose those in power and eliminate every member of their line. He is ruthless in this task, tearing across heavily armed fortress cities in the blink of an eye.
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A playful spirit of fire, Kennen is not a malevolent being, but can't help igniting his surroundings while zipping about. His lightning quick movements wreak havoc upon any village unfortunate enough to entice the impish spirit to visit.
Kennen transforms into a writhing ball of electricity, receiving a massive energy boost and gaining the ability to move through units. Enemy units he passes through receive damage and gain a Mark of the Storm.
Her dance is very similar to PROJECT: Vayne's, whose dance is a similar breakdance move.
Kennen used to gain the 'Law of Inverse Ninja Strength' cosmetic Easter egg debuff ("This unit is a flippin' ninja!" - "Ninjas are more effective when they work alone. For every Ninja on your team beyond yourself, you lose 1 health.") when he, Akali, Shen, and/or Zed found themselves on the same team. It was removed in V3.14 for unknown reasons.