Hi, My name is Ziggs IGN is 7DBoyz and i'm a Gold Kennen main.. Yes I know but i started playing league in Preseason and I had a 60+ percent winrate. Started in bronze and climbed very easily. Still climbing fairly easy so i'm gonna write this guy about my favorite champion in the game and I hope you guys like it... Also this is my first guide so go easy on me feel free to add me.

Your probably asking why Electrocute and not first of all. None of his abilty go through minions, the damage is useless late. While Electrocute can be proc'd IN THREE ways on Kennen all very easy. I'll go over one way but I will make a Combo's list later in the guide
+ + Passive AA on W

I don't have anything against Summon Aery but it's just not good in my opionion on champions that don't have DoT like Teemo or Cassiopeia even Singed. You will consistently oneshot people running and will help you seal the deal on trades. Your job is killing squishies like the ADC. Don't bother if you can wasting your full burst on Tanks. With the Changes in 8.9 All of Kennens ability excluding his ult will have over 75% AP Ratios so Building AP is now more worth then the Magic Pen build meaning Have fun oneshotting people.

(1st Item) - This is my undisputed first item on Kennen I use to like Protobelt but it doesn't feel good late on Kennen Nashor's outclasses as a wave clear item and a scaling item. Only good thing about it was the wave clear but with AP buffs on W and atk speed changes on E you will one shot minions with the active W after 2 and a half items, with 20% CDR you can also spam spells to clear waves. With Nashor's you will cap at 1.47 atk speed after going through a champion you will have 2.17 atk speed at max rank dueling top laner's with nashor's never felt better... Read title
(2nd Item) or With all his ability's now having above 75% AP ratio's excluding his ult building Full AP like Veigar is now very viable in my head. So I usually go Death Cap most of the time and Zhonya's when i'm against a Kha'Zix, Zed Shaco or if the ADC is very fed but if not I go DeathCap it's the fastest way to ensure no one can lane safely against you for a while.
(3rd item Above)
(4th Item) - Anyone building MR will feel your anger.
(5th Item) or - let me start with the elephant in the room. You can buy items that can boost your damage significantly like spellbinder or get more CDR but Guardian angel boost your 5th atk damage and give's you a second chance to make your enemy hate there life very useful in last team fights. Adaptive Helm not much to say a Squishy Kennen can't live to get a good ult if they're is a Teemo or Cassiopeia running around making your life hell buy it.

-Cost: 60/55/50/45/40 Energy
Range: 950

Kennen throws a fast moving shuriken towards a location, causing damage and adding a Mark of the Storm to any opponent that it hits.

Throws a shuriken that deals 75/115/155/195/235 (+75% Ability Power) magic damage to the first enemy it hits.

-Kennen passively deals extra damage and adds a Mark of the Storm to his target every few attacks, and he can activate this ability to damage and add another Mark of the Storm to targets who are already marked.

Passive: Every 5 attacks, Kennen deals bonus magic damage equal to 15/20/25/30/35 (+0) (+30% Ability Power) and adds a Mark of the Storm to his target.
Active: Sends a surge of electricity through all nearby enemies affected by Mark of the Storm or Slicing Maelstrom, dealing 65/95/125/155/185 (+80 Ability Power) magic damage.
-Cost: 100/95/90/85/80 Energy
Range: 200

Kennen morphs into a lightning form, enabling him to pass through units. Each enemy unit he touches takes damage and receives a Mark of the Storm.

Kennen doubles his base movement speed and ignores unit collision for 2 seconds, dealing 85/125/165/205/245 (+80% Ability Power) magic damage to any enemy he passes through. Additionally, Kennen will gain 10/20/30/40/50 Armor and Magic Resist for 4 seconds.Kennen gains 40 Energy the first time he passes through an enemy.Lightning Rush deals half damage to minions. - Cost: No Cost
Range: 550

Kennen summons a storm that strikes at nearby enemy champions for magical damage.

Summons a magical storm for 3 seconds that deals 40/75/110 (+20% Ability Power) magic damage to all enemies near Kennen every 0.5 seconds. Each maelstrom hit applies Mark of the Storm, up to a maximum of 3.Successive maelstrom hits against the same enemy deal an additional 10% damage for each hit they've already suffered from this storm.

-Most people when they play Kennen are too focused on trying to get a 5 man ult that's almost never possible always just try to ult the ADC and the rest will follow you will almost always get atleast 2.
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- Don't be afraid to use your E offensively and proc electrocute with E+Q+W you win every trade if you get the jump like that
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Don't ult immediately if it wasn't predetermined and it's a skirmish. With buffs and even before you do enough damage and can CC champion without the need of your ult
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Prefer Kennen Mid because you work best with an engager at your side if your playing top in champ select ask someone to play someone tanky.

Let's finish this Kennen guide with a Pro's/cons
Pro's

-No mana
-Provides alot of CC
-Can easily proc electrocute
-Can win a teamfight with his ult
- High damage early with full combo
- Highly mobile
- Builds are very adaptable


Con's

-If everyone on your team is squishy you will almost never get a good ult in
- no sustain
-Squishy. E changes in 8.9 make that even clearer
- Get CC'd before ulting lose game
- Energy cost's are high, energy return not reliable