|(Innate): Sejuani's basic attacks apply Frost, a slowing effect, reducing enemy movement speed by 10% for 3 seconds.|
|Frost is a passive ability that grants Sejuani an on-hit effect, applying the Frost debuff to attacked targets to slow them for a short duration. Frost also interacts with Sejuani's other abilities.|
| Arctic Assault|
|(Active): Sejuani charges forward, dealing magic damage and applying Frost to enemies. Sejuani stops upon colliding with an enemy champion.
Cooldown: 19 / 17 / 15 / 13 / 11 seconds
Cost: 70 / 75 / 80 / 85 / 90 mana
Magic Damage: 60 / 90 / 130 / 170 / 210 (+0.4 per ability power)
| Arctic Assault is a linear dash ability that causes Sejuani to charge forward a short distance in the targeted direction. Upon colliding with an enemy champion the dash is stopped, dealing magic damage and applying Frost to all nearby enemy units.
| Northern Winds|
|(Active): Sejuani summons an arctic storm around her for 5 seconds, dealing magic damage each second to nearby enemies.
Damage is increased by 50% against enemies affected by Frost or Permafrost.
|Magic Damage per Second: 12 / 20 / 28 / 36 / 44 (+0.1 per ability power) (+1 / 1.25 / 1.5 / 1.75 / 2% of Sejuani's maximum health)|
| Northern Winds is a point blank area of effect ability that deals magic damage to all enemy units in a radius around Sejuani for a short duration. Enemy units afflicted with Frost take additional damage from the spell.
|Sejuani converts Frost on nearby enemies to Permafrost, dealing magic damage and increasing the movement speed reduction for 3 seconds.
Magic Damage: 60 / 110 / 160 / 210 / 260 (+0.5 per ability power)
New Movement Speed Reduction: 30 / 40 / 50 / 60 / 70 %
| Permafrost is a point blank area of effect ability that deals magic damage and slows all nearby enemy units afflicted with Frost.
| Glacial Prison|
|(Active): Sejuani throws her weapon, stunning the first enemy champion hit for 2 seconds and all other nearby enemies for 1 second. All affected targets take magic damage and are affected by Frost.
Cooldown: 130 / 115 / 100 seconds
Magic Damage: 150 / 250 / 350 (+0.8 per ability power)
| Glacial Prison is a collision linear skillshot that throws a spinning mace in the target direction. The first enemy champion it hits takes magic damage and is stunned for 2 seconds. Additionally, all enemy units in an area around the target hit take the same amount of magic damage and are stunned for 1 second. All units hit are also affected by Frost.