Sejuani Ability (LoL): Winter's Wrath

Sejuani swings her flail, dealing 10 / 15 / 20 / 25 / 30 (+20% of ability power) (+2% maximum health) and knocking back minions and jungle monsters. She then lashes out again, dealing 20 / 60 / 100 / 140 / 180 (+60% of ability power) (+6% maximum health) physical damage and briefly slowing targets. Both swings apply stacks of Permafrost.