Tristana Ability (LoL): Explosive Charge

Passive: Tristana's attacks that kill enemies deal 45 / 60 / 75 / 90 / 105 (+25% of ability power) magic damage to surrounding enemies.

Active: Tristana attaches a bomb to an enemy or turret that deals 60 / 85 / 110 / 135 / 160 (+0.8 per bonus attack damage) (+50% of ability power) physical damage to surrounding enemies after 4 seconds. The damage is increased by 0-75% depending on the critical strike chance and by 25% each time Tristana hits an attack or ability (max 4 stacks). At 4 stacks, the bomb explodes immediately.