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Matchup

Orianna
Orianna
31%
69%

vs

50.0%
Sejuani
Sejuani
45%
55%
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
Blackfire Torch
2Mage
Shadowflame
3vs Tank

Standard

Sorcerer's Shoes
4Magic pen
Luden's Echo
5Mage

Summoner spells

41288%
143%

Anti AD

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

Anti CC

Mercury's Treads
4vs CC

Anti Tank

Void Staff
5vs Tank
Cryptbloom
vs Tank
Stormsurge
vs Tank

DPS

Luden's Echo
Mage
Hextech Rocketbelt
Mage tank
Rabadon's Deathcap
Mage
Liandry's Torment
Mage tank
Seraph's Embrace
Mage
Cosmic Drive
Mage tank
100.0% WR1 games
SorcerySorcery
Summon AerySummon Aery
Manaflow BandManaflow Band
TranscendenceTranscendence
ScorchScorch
PrecisionPrecision
Presence of MindPresence of Mind
Coup de GraceCoup de Grace
Attack SpeedAdaptive ForceHealth Scaling

Power Spikes

Strength by game phase

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