Janna shields her target, absorbing 80 / 115 / 150 / 185 / 220 (+70% of ability power) damage and buffs them, increasing their attack damage by 10 / 17.5 / 25 / 32.5 / 40 (+10% of ability power) for 5 seconds (can target Turrets) or until the shield is broken. Eye of the Storm's shield decays over its duration after a 0.75 grace period.

Each ability that slows or knocks back an enemy champion reduces Eye of the Storm's cooldown by 20%, up to once per ability cast.