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
Malignance
2Mage
Hextech Rocketbelt
3Mage tank

Standard

Sorcerer's Shoes
4Magic pen
Zhonya's Hourglass
5vs AD

Summoner spells

41281%
41419%

Anti AD

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

Anti AP

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

Anti Tank

Shadowflame
5vs Tank
Void Staff
vs Tank
Stormsurge
vs Tank

DPS

Blackfire Torch
Mage
Liandry's Torment
Mage tank
Rabadon's Deathcap
Mage

Other options

Oblivion Orb
100.0% WR1 games
SorcerySorcery
Arcane CometArcane Comet
Manaflow BandManaflow Band
TranscendenceTranscendence
ScorchScorch
DominationDomination
Ultimate HunterUltimate Hunter
Cheap ShotCheap Shot
Adaptive ForceAdaptive ForceHealth Scaling

Power Spikes

Strength by game phase

Early (0-15)
Mid (15-30)
Late (30+)
LissandraLissandra
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