Matchup

Heavy CCVery tankyStrong engage

Build vs Sejuani

Build adapted to this matchup

Starting items

Doran's Ring
Health Potion
x2

Core build

Dark Seal
1
Dusk and Dawn
2Mage tank
Liandry's Torment
3Mage tank

Standard

Sorcerer's Shoes
4Magic pen
Statikk Shiv
5DPS

Summoner spells

41492%
4127%

Anti AD

Plated Steelcaps
4vs AD
Zhonya's Hourglass
5vs AD

Anti Heal

Morellonomicon
6vs Heal

Anti CC

Mercury's Treads
4vs CC

Anti Tank

Shadowflame
5vs Tank
Bloodletter's Curse
vs Tank
Void Staff
vs Tank
Stormsurge
vs Tank

DPS

Statikk Shiv
DPS
Malignance
Mage
Nashor's Tooth
DPS
Rabadon's Deathcap
Mage
Blackfire Torch
Mage
Hextech Gunblade
Mage
Blade of The Ruined King
DPS
Riftmaker
Mage tank

Other options

Guinsoo's Rageblade
100.0% WR1 games
PrecisionPrecision
Press the AttackPress the Attack
TriumphTriumph
Legend: AlacrityLegend: Alacrity
Last StandLast Stand
ResolveResolve
OvergrowthOvergrowth
Bone PlatingBone Plating
Attack SpeedAdaptive ForceHealth Scaling

Power Spikes

Strength by game phase

Early (0-15)
Mid (15-30)
Late (30+)
TeemoTeemo
SejuaniSejuani
Careful
Careful
Aggressive

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