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Sejuani

The Winter's Wrath

Tank
Magical Damage
JunglerTop

General counter information:

Build TenacityTry to kite and pokeHard CCDodge AbilitiesDeny FarmTry to Counter Jungle

Counter Items & Summoner Spells:

Health Points: 450 (+85 / per level) Health Regen: 7.25
Mana Points: 220 (+40 / per level) Mana Regen: 30
Damage: 54 (+3.4 / per level) Attack Speed: 0.67 (+1.45 / per level)
Attack Range: 125 Movement Speed: 315
Armor: 17.5 (+3.5 / per level) Magic Resistance: 30 (+1.25 / per level)
Influence Points (IP): 6300 Riot Points (RP): 975

Frost Armor

Passive

Damaging an enemy with an ability or basic attack grants 10 / 15 / 20 / 25 bonus armor and reduces movement-slowing effects on Sejuani by 10 / 15 / 20 / 25% for 2 seconds. Subsequent damage will increase the duration by 2 seconds up to a cap of ~8 seconds, where after damage will refresh the duration.

Arctic Assault

Q

Active: Sejuani charges forward, knocking enemies into the air and dealing magic damage equal to a flat amount plus a percentage of the target's maximum health (max 300 damage to monsters). This charge stops after knocking an enemy champion into the air.
Range: 650
Cooldown: 15 / 14 / 13 / 12 / 11
Cost: 80 / 85 / 90 / 95 / 100 mana
Magic damage: 40 / 70 / 100 / 130 / 160 (+ 40% AP)
Max Health to Damage Ratio: 4 / 6 / 8 / 10 / 12%

Flail of the Northern Winds

W

Active: Sejuani's next basic attack deals bonus magic damage to the target and enemies near it. She then swings her flail, dealing magic damage to nearby enemies over 4 seconds. If this ability is reactivated, Sejuani immediately starts swinging her flail.
Range: 350
Cooldown: 11 / 10 / 9 / 8 / 7
Cost: 40 Mana
Bonus Magic Damage: 40 / 60 / 80 / 100 / 120 (+ 30% AP)
AoE Damage per Second: 20 / 30 / 40 / 50 / 60 (+ 4% of bonus health) (+ 15% AP)
Total AoE Damage: 80 / 120 / 160 / 200 / 240 (+ 16% of bonus health) (+ 60% AP)
Max Total Damage to One Target: 120 / 180 / 240 / 300 / 360 (+ 10% of bonus health) (+ 90% AP)

Permafrost

E

Passive: Sejuani's abilities and basic attacks apply Frost to enemies for 4 seconds.

Active: All nearby enemies with Frost take magic damage and are slowed.
Range: 1000
Cooldown: 11
Cost: 55 Mana
Magic Damage: 60 / 110 / 160 / 210 / 260 (+ 50% AP)
Slow: 50 / 55 / 60 / 65 / 70%
Duration: 1.5 / 1.75 / 2 / 2.25 / 2.5

Glacial Prison

R

Active: Sejuani throws her frost-forged bola in a line. If the bola hits an enemy champion, it shatters, stunning the target and nearby enemies for a duration. If the bola reaches its maximum range, it shatters and slows enemies by 90% instead.

All enemies in the shatter area take magic damage.
Range: 1175
Cooldown: 130 / 115 / 100
Cost: 100 Mana
Magic Damage: 150 / 250 / 350 (+ 80% AP)
Stun/Slow Duration: 1.25 / 1.5 / 1.75


Counter Tips

If she misses her Arctic Assault or her ultimate, your team a will have an advantage window. It's also fairly easy to Flash out of these abilities!
Knock-back abilities are strong against her, as they will prevent her from initiating fights.