Tristana Ability (LoL): Rocket Jump

Tristana fires at the ground to propel herself to target location, dealing 70 / 105 / 140 / 175 / 210 (+50% of ability power) (+0.75 per bonus attack damage) magic damage and slowing surrounding units by 40% for 2 seconds when she lands.

Rocket Jump's cooldown resets on kill or assist or whenever Explosive Charge detonates at maximum stacks on champions.