Annie Ability (LoL): Molten Shield

Annie grants herself or an ally 40 / 85 / 130 / 175 / 220 (+35% of ability power) shield for 3 seconds and 20-50% movement speed decaying over 1.5 seconds. While the shield holds, enemies who attack it take 20 / 30 / 40 / 50 / 60 (+20% of ability power) magic damage.