Gangplank's basic attacks apply a poison debuff for 3 seconds that can stack up to 3 times. Each stack deals 3 + (1 × level) magic damage per second and slows the target by 7%.
Parrrley
Range: 625
Cooldown: 5
Cost: 50 / 55 / 60 / 65 / 70 mana
Active: Gangplank shoots a target enemy with his pistol, dealing physical damage. If it is killed with this ability, he gains extra gold and refunds half the mana cost. This ability can critically strike and applies on-hit effects, including his passive.
Active: Gangplank fires into the air, disabling his passive boost but inspiring himself to gain additional attack damage and movement speed, with allied champions within range receiving half that amount, for 7 seconds.
Active Self Movement Speed Bonus: 8% / 11% / 14% / 17% / 20%
Cannon Barrage
Range: Global
Cooldown: 120 / 115 / 110
Cost: 100 mana
Active: Gangplank signals his ship to fire a cannonball barrage upon a target 600-radius area for 7 seconds, granting vision of the area and slowing enemies inside it by 25% until 1.25 seconds after they exit the area.
25 cannonballs randomly drop over the duration, each one dealing magic damage to enemies within a radius of 150.
3150 or 
790
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