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The Heart of the Tempest

Physical DamageMagical Damage

General counter information:

Deny FarmDodge AbilitiesHard CCOutsustain Try to kite and poke

Counter Items & Summoner Spells:

Health Points: 403 (+79 / per level) Health Regen: 4.65
Energy: 200 Energy Regen: 50
Damage: 51.3 (+3.3 / per level) Attack Speed: 0.69 (+3.4 / per level)
Attack Range: 575 Movement Speed: 310
Armor: 14 (+3.75 / per level) Magic Resistance: 30 (+0 / per level)
Influence Points (IP): 4800 Riot Points (RP): 975

Mark of the Storm


Kennen's abilities add Marks of the Storm to opponents which last for 6 seconds. An opponent is stunned for 1 second upon receiving 3 Marks of the Storm, and Kennen receives 25 energy. If the stun is applied more than once within 7 seconds, it has a diminished effect so it will only stun for approximately 0.5 seconds.

Thundering Shuriken


Active: Kennen throws a charged shuriken in a line in front of him, dealing magic damage and adding a Mark of the Storm to the first opponent that it hits.
Range: 1050

Cost: 65/60/55/50/45 energy
Cooldown: 8/7/6/5/4 seconds
Magic Damage: 75/115/155/195/235 (+0.75 per ability power)

Electrical Surge


Passive: Every 5 attacks, Kennen will deal extra magic damage equal to a percentage of his attack damage and add a Mark of the Storm to his target.
Active: Surges electricity through all nearby targets afflicted by Mark of the Storm, dealing magic damage and adding another mark.
Cost: 45 energy
Radius: 800

Magic Damage: 40/50/60/70/80% of his attack damage
Cooldown: 14/12/10/8/6 seconds
Magic Damage: 65/95/125/155/185 (+0.55 per ability power)

Lightning Rush


Active: For 3 seconds Kennens base movement speed is increased by 310. He also gains the ability to pass through units, dealing magic damage to all enemy units in the process, restoring 40 energy from the first enemy he hits. This ability only deals 50% damage to minions. Additionally, for 4 seconds Kennens armor and magic resistance are increased.While Lightning Rush is active, he can activate it again, to cancel the first part of the ability.

Cost: 100/95/90/85/80 energy
Cooldown: 10/9/8/7/6 seconds
Magic Damage: 85/125/165/205/245 (+0.6 per ability power)
Armor and Magic Resistance Bonus: 10/20/30/40/50

Slicing Maelstrom


Active: Kennen summons a magical storm that deals magic damage to a random enemy champion near Kennen every 0.5/0.4/0.33 seconds. The storm hits several times, increasing with level, and cannot hit the same target more than 3 times. A Mark of the Storm is applied to enemies each time they are hit.
Cooldown: 120 seconds
Radius: 550 (estimate)

Cost: 50/45/40 energy
Magic Damage Per Bolt: 80/145/210 (+0.4 per ability power)
Duration: 3/4/5 seconds
Number of Bolts: 6/10/15
Max Magic Damage to the Same Target: 240/435/630 (+1.2 per ability power)
Time Between Bolts: 0.5/0.4/0.33 seconds

Counter Tips

Kennen has a hard time against champions with Knock-back (e.g. Tristana Buster Shot) which prevents him from entering a fight with his Maelstrom.
Step away from him when he has his Electrical Surge proc up, otherwise you'll take additional damage as well as get marked.
Most Kennens build a bit of AD early into AP mid-game, so don't be fooled and build MR against him.