Matchup

Nocturne
Nocturne
82%
18%

vs

51.3%

over 801 games

Sejuani
Sejuani
45%
55%
Heavy CCVery tankyStrong engage

Skill matchup

Build vs Sejuani

Build adapted to this matchup

Starting items

Scorchclaw Pup
Health Potion

Core build

Experimental Hexplate
1Bruiser
Black Cleaver
2vs Tank
Stridebreaker
3Bruiser

Standard

Boots of Swiftness
4vs Slow
Axiom Arc
5vs Tank

Summoner spells

41199%
11141%

Anti AD

Plated Steelcaps
4vs AD
Death's Dance
5vs AD
Guardian Angel
vs AD
Randuin's Omen
vs AD

Anti Heal

Mortal Reminder
6vs Hybride

Anti AP

Mercury's Treads
4vs CC
Maw of Malmortius
5vs AP

Anti Heal

Chempunk Chainsword
6vs Heal

Anti Tank

Axiom Arc
5vs Tank
Profane Hydra
vs Tank
The Collector
vs Tank
Serpent's Fang
vs Tank
Voltaic Cyclosword
vs Tank
Lord Dominik's Regards
vs Tank
Hubris
vs Tank
Edge of Night
vs Tank
Serylda's Grudge
vs Tank

DPS

Eclipse
DPS
Blade of The Ruined King
DPS
Fiendhunter Bolts
DPS
Kraken Slayer
DPS
Infinity Edge
DPS
Immortal Shieldbow
DPS

Other options

Sterak's Gage
Survival
Zeke's Convergence
Tank
100.0% WR7 games
PrecisionPrecision
ConquerorConqueror
TriumphTriumph
Legend: AlacrityLegend: Alacrity
Last StandLast Stand
DominationDomination
Ultimate HunterUltimate Hunter
Grisly MementosGrisly Mementos
Attack SpeedAdaptive ForceHealth Scaling

Power Spikes

Strength by game phase

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

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