Matchup

Renekton

80%

20%

vs

50.0%

Sejuani

45%

55%

Heavy CCVery tankyStrong engage

Build vs Sejuani

Build adapted to this matchup

Starting items

—

Core build

1vs Tank

2Survival

3vs AP

Standard

4vs Slow

5DPS

Summoner spells

69%

30%

Anti AD

4vs AD

5vs AD

vs AD

Anti Heal

6vs Hybride

Anti AP

4vs CC

5vs AP

Anti Tank

5vs Tank

DPS

Bruiser

DPS

100.0% WR2 games

Precision

Conqueror

Triumph

Legend: Alacrity

Last Stand

Resolve

Unflinching

Bone Plating

Power Spikes

Strength by game phase

Early (0-15)

Mid (15-30)

Late (30+)

Renekton

Sejuani

Aggressive

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

Level	Q	W	E	R
3	18s	9s	1.5s	–
6	15s	9s	1.5s	2m
9	12s	8s	1.5s	2m
11	12s	7s	1.5s	1m45
16	12s	5s	1.5s	1m30
18	12s	5s	1.5s	1m30

Playing against Sejuani

How to counter and exploit weaknesses

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

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

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

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