Pirate King's Crown

The Pirate King's Crown is an epic item that can only be obtained upon killing all four Pirate kings, with the last one having a guaranteed chance to drop. When worn, challengers are able to spawn in place of tier one pirates. These challengers retain the same loot tables as the pirates they take the place of, but have the same stats as tier three pirates. Upon satisfying all of its conditions, it will turn into the Crown of the Pirate Lord.

Source

 * Pirate King of the South
 * Pirate King of the North
 * Pirate King of the West
 * Pirate King of the East