Volibear Ability (LoL): Stormbringer

Volibear transforms and leaps, gaining 200 / 400 / 600 health and 50 attack range for the next 12 seconds. Upon landing, Volibear cracks the earth, disabling nearby towers for 2 / 3 / 4 seconds and dealing 300 / 500 / 700 (+2.5 per bonus attack damage) (+125% of ability power) physical damage to them. Nearby enemies are slowed by 50%, decaying over 1 second. Enemies directly underneath Volibear suffer 300 / 500 / 700 (+2.5 per bonus attack damage) (+125% of ability power) physical damage.