Gragas Ability (LoL): Drunken Rage

Gragas guzzles his brew, reducing incoming damage by 10 / 12 / 14 / 16 / 18% (+4% per 100 ability power) for 2.5 seconds. After finishing his drink, his next attack deals an additional 20 / 50 / 80 / 110 / 140 (+70% of ability power) plus 7% of target's max health as magic damage to the target and surrounding enemies.