Matchup
You are stronger late game — farm safe and avoid early trades.
Build vs Sejuani
Build adapted to this matchup
Starting items
Core build
Standard
Summoner spells
79%
10%Anti AD
Anti Heal
Anti AP
Other options
Resolve
Grasp of the Undying
Demolish
Bone Plating
Overgrowth
Inspiration
Magical Footwear
Biscuit Delivery
Power Spikes
Strength by game phase
Ornn
SejuaniSejuani's abilities
Passive, spells and ultimate
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