Anivia Ability (LoL): Glacial Storm

Toggle: Anivia calls forth a driving rain of ice and hail that slows enemies by 20 / 30 / 40% and deals 30 / 45 / 60 (+12.5% of ability power) magic damage per second. The storm increases in size over 1.5 seconds.

When the storm is fully formed, it chills enemies, slows by 30 / 45 / 60% and does 90 / 135 / 180 (+37.5% of ability power) magic damage per second instead.

Mana: 60 + 35 / 45 / 55 per second.