Powder Kegs can only be damaged by enemy champions' basic attacks and cannot be targeted by enemy minions.
The Powder Keg loses 1 maximum health every seconds (minimum 1 current health)
Gangplank can attack a Powder Keg with basic attacks and kill gold but instead explodes, inflicting the triggering strike upon all enemies, ignoring 40% of their armor, slowing them by 40 / 50 / 60 / 70 / 80% for 2 seconds, dealing 60 / 90 / 120 / 150 / 180 bonus physical damage to enemy champions and applying spell effects as an area-of-effect ability. Magic damage on-hit effects are not applied. If Gangplank destroys a Powder Keg with then every enemy killed by the Powder Keg will also be plundered and give Gangplank as if he had killed them with the initial ability.. If he destroys it, the keg no longer grants
Powder Kegs connect to each other when, and explode when a Powder Keg they are connected to is detonated, though they do not affect enemies hit by one of the previous explosions.