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Matchup

Kennen
Kennen
46%
54%

vs

50.0%
Sejuani
Sejuani
45%
55%
Heavy CCVery tankyStrong engage

Build vs Sejuani

Build adapted to this matchup

Starting items

Doran's Blade
Health Potion

Core build

Hextech Gunblade
1Mage
Shadowflame
2vs Tank
Zhonya's Hourglass
3vs AD

Standard

Sorcerer's Shoes
4Magic pen
Hextech Rocketbelt
5Mage tank

Summoner spells

41463%
41227%

Anti AD

Plated Steelcaps
4vs AD
Guardian Angel
5vs AD

Anti AP

Mercury's Treads
4vs CC
Banshee's Veil
5vs AP

Anti Tank

Void Staff
5vs Tank
Stormsurge
vs Tank

DPS

Hextech Rocketbelt
Mage tank
Liandry's Torment
Mage tank
Statikk Shiv
DPS
Rabadon's Deathcap
Mage
Infinity Edge
DPS

Other options

Dark Seal
100.0% WR2 games
DominationDomination
ElectrocuteElectrocute
Taste of BloodTaste of Blood
Grisly MementosGrisly Mementos
Ultimate HunterUltimate Hunter
SorcerySorcery
Absolute FocusAbsolute Focus
ScorchScorch
Attack SpeedAdaptive ForceHealth Scaling

Power Spikes

Strength by game phase

Early (0-15)
Mid (15-30)
Late (30+)
KennenKennen
SejuaniSejuani
Neutral
Neutral
Neutral

Sejuani's abilities

Passive, spells and ultimate

Fury of the North (P)

After being out of combat, Sejuani gains Frost Armor which grants Armor and Magic Resist and immunity to slows. Frost Armor persists for a short time after Sejuani takes damage. Sejuani can damage a stunned enemy to shatter it, dealing massive magic damage.

Cooldowns

Cooldowns by spell rank

LevelQWER
318s9s1.5s–
615s9s1.5s2m
912s8s1.5s2m
1112s7s1.5s1m45
1612s5s1.5s1m30
1812s5s1.5s1m30

Playing against Sejuani

How to counter and exploit weaknesses

1

Sejuani needs 4 frost stacks to stun — don't stay in range of her extended autos.

2

Her Q is a slow and predictable dash — sidestep or Flash the knockup.

3

She's weak in 1v1 but excels in teamfights — invade her early in the jungle when she's vulnerable.

4

Tenacity reduces the duration of her many CCs — buy Tenacity if you're frontline.

Source: op.gg + LTL Engine · Patch 16.9.1 · May 9, 2026