Previous Lore
There exists an ancient order originating in the Ionian Isles dedicated to the preservation of balance. Order, chaos, light, darkness - all things must exist in perfect harmony for such is the way of the universe. This order is known as the Kinkou and it employs a triumvirate of shadow warriors to uphold its causes in the world. 
Kennen is one of these shadow warriors, entrusted with the sacred duty of Coursing the Sun - tirelessly conveying the justice of the Kinkou.
Kennen was born in Bandle City and it is said that in his first living moments he bolted first from the womb and second from the midwife who delivered him. His parents had thought that he would outgrow his boundless energy, but as he matured, his energy found no limits and was matched only by his unnerving 
speed. Despite his astonishing gifts, he remained unnoticed (or at least uncaught, as he was quite the prankster) until, on a dare, he ran straight up the great outer wall of the Placidium. When word of this feat reached Kinkou ears, Kennen was quickly and quietly brought for an audience. He found that the role of the Heart of the Tempest suited him, frenetically delivering both the word and the punishments of the Kinkou across the realm. He now works with his fellows 
Akali and 
Shen to enforce the balance of Valoran. This hallowed pursuit has unsurprisingly led the triumvirate to the Fields of Justice.
Previous Abilities
1st Mark of the Storm (I)
1st Thundering Shuriken (Q)
1st Electrical Surge (W)
1st Lightning Rush (E-1)
1st Lightning Rush (E-2)
1st Slicing Maelstrom (R)
Previous Splash Art
1st Classic Kennen
1st Deadly Kennen
1st Swamp Master Kennen
2nd Swamp Master Kennen
1st Kennen M.D.
1st Arctic Ops Kennen
Swamp Master Kennen
Patch History
-
Electrical Surge
- New Effect: Passive now deals 15 / 20 / 25 / 30 / 35 base damage.
- New Effect: Passive now scales with 30% AP.
- Passive AD ratio changed to 60% bonus AD at all ranks from 40 / 50 / 60 / 70 / 80% AD.
- New Effect: Passive counter increments upon launching an attack, previously was upon landing a hit.
- Runaan's Hurricane no longer grants extra stacks on secondary targets.
- Lightning Rush
- AP ratio increased to 80% AP from 60% AP.
- Stats
- Magic resistance growth increased to 0.5 from 0.
- Kennen M. D. [|
- Bug Fix: Fixed some dark textures appearing on the scalpel in his basic attack.
- Blood Moon Kennen [|
- Lightning Rush
- Bug Fix: Fixed a bug where a random particle would appear when using it.
-
- General
- Bug Fix: Fixed a bug on most of Kennen's skins where the on-hit particles for his basic attack were not properly appearing.
- Slicing Maelstrom
- Base damage reduced to 40 / 75 / 110 from 80 / 145 / 210.
- AP ratio reduced to 20% AP from 40% AP.
- Per target successive strike modifier increased to 100 / 110 / 120 / 130 / 140 / 150% from 100 / 75 / 50 / 50 / 50 / 50% on strikes 1 to 6.
- New Effect: Successive maelstrom hits against the same enemy deal an additional 10% damage for each hit they've already suffered from this storm.
- Removed: Each time an enemy is struck, further hits deal 25% less damage (minimum of 50% damage).
- General
- Kennen's basic attack animation has been updated to better match when the shuriken leaves his hand.
- Stats
- Basic attack missile speed increased to 1700 from 1600.
- Electrical Surge
- Empowered attack missile speed reduced to 1700 from 1800.
- General
- New ability icons.
- Mark of the Storm
- Mark duration reduced to 6 seconds from 6.25.
- Diminishing returns stun duration reduced to 6 seconds from 7.
- Additional stun duration reduced to 0.5 seconds from 0.6.
- Thundering Shuriken
- Energy cost reduced to 60 / 55 / 50 / 45 / 40 from 65 / 60 / 55 / 50 / 45.
- Electrical Surge
- Range reduced to 750 from 800.
- Mana cost reduced to 40 from 45.
- Slicing Maelstrom
- Duration reduced to 3 seconds at all ranks from 3 / 4 / 5.
- Damage tick interval increased to 0.5 seconds from 0.25.
- New Effect: Targeting changed to all enemies within AoE from random.
- Removed: 3-hits-per-target limit.
- New Effect: Enemies take 25% less damage with each successive hit, down to a minimum of 50%.
- As a result of these changes, maximum possible individual damage increased to 300 / 543.75 / 787.5 (+ 150% AP) from 240 / 435 / 630 (+ 120% AP)
- Mark of the Storm
- Bug Fix: Fixed a tooltip bug listing a 1 second stun duration instead of 1.25.
- Electrical Surge
- Bug Fix: Sometimes not applying Mark of the Storm to enemies within Slicing Maelstrom.
- Bug Fix: Sometimes not applying
- Electrical Surge
- New Effect: Now hits all enemies within Slicing Maelstrom, in addition to enemies afflicted by Mark of the Storm.
- New Effect: Now hits all enemies within
- Slicing Maelstrom
- Bug Fix: Hitting the same target every 0.25 seconds instead of every 0.5 seconds.
- Electrical Surge
- New Effect: Performs additional checks on-cast (besides after cast time).
- Slicing Maelstrom
- Damage tick interval reduced to 0.25 seconds at all ranks from 0.5 / 0.4 / 0.33.
- New Effect: Cannot hit the same target more than once every 0.5 seconds.
- Tooltip updated (storm duration from maximum hits, duration unchanged).
- Stats
- Base armor increased to 18 from 14.
- Electrical Surge
- Bug Fix: Fixed a bug where Electrical Surge would not properly hit a target if Mark of the Storm wore off or was fully consumed before the casting time of Electrical Surge completed.
- Mark of the Storm no longer wears off mid-cast.
- If cast just as Mark of the Storm is consumed by another ability, Kennen will still deal damage and add a stack as normal.
-
- Bug Fix: Fixed a bug where Electrical Surge would not properly hit a target if Mark of the Storm wore off or was fully consumed before the casting time of Electrical Surge completed.
- Stats
- Base attack damage reduced to 47.2 from 51.3.
- Mark of the Storm
- Duration reduced to 6 seconds from 8.
- Electrical Surge
- Removed: Is no longer consumed when attacking wards.
- Slicing Maelstrom
- Energy cost reduced to 0 from 40.
- General
- Basic attack updated to be more responsive.
- Stats
- Movement speed increased to 335 from 310.
- General
- Basic attack animations updated to be more responsive.
- Stats
- Attack range reduced to 550 from 575.
- Thundering Shuriken
- Cooldown increased to 8 / 7 / 6 / 5 / 4 seconds from 7 / 6 / 5 / 4 / 3.
- Thundering Shuriken
- AP ratio increased to 75% AP) from 66% AP.
- Lightning Rush
- AP ratio increased to 60% AP from 55% AP.
- Energy cost reduced to 100 / 95 / 90 / 85 / 80 from 100 at all ranks.
- Electrical Surge
- New Effect: Buff icon is gray while charging.
- Mark of the Storm
- Duration reduced to 8 seconds from 12.
- Electrical Surge
- Range reduced to 800 from 825.
- Lightning Rush
- Removed: Casting while disabled.
- Mark of the Storm
- Stun duration reduced to 1 second from 1.25.
- New Effect: Stun has a diminished duration if applied to same target more than once within 7 seconds.
- Electrical Surge
- AP ratio increased to 55% AP from 45% AP.
- Lightning Rush.
- Energy cost reduced to 100 from 110.
- New Effect: Grants 10 / 20 / 30 / 40 / 50 bonus resistances for 4 seconds.
- Slicing Maelstrom
- AP ratio increased to 40% AP from 33% AP.
- Bolts increased to 6 / 10 / 15 from 6 / 8 / 10 (3-hits-per-target limit unchanged).
- Removed: Cap of only applying a single Mark of the Storm per target.
- General
- New sound effects for basic attacks against different materials.
- V1.0.0.82 added
- Mark of the Storm (Innate)
- Kennen's abilities add Marks of the Storm to opponents they hit, which explode at 3 stacks, stunning the opponent and restoring some of Kennen's energy.
- Thundering Shuriken (Q)
- Kennen throws a lightning infused shuriken towards a location, damaging the first enemy it hits and adding a Mark of the Storm to them.
- Electrical Surge (W)
- Kennen passively deals extra damage and adds a Mark of the Storm to opponents every few attacks, and can activate this ability to deal damage to all nearby marked units and add another mark.
- Lightning Rush (E)
- 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.
- Slicing Maelstrom (Ultimate)
- Kennen summons an electrical storm around him, casting down lightning bolts to a random enemy champions near him multiple times per second.
