The Black Spot

The Black Spot is a mount-summon item dropped by the Flying Dutchman in Master mode. It summons a ridable Flying Dutchman. It can fly infinitely at a very high speed.

Trivia

 * The item’s description, which mentions ‘mutiny’, may be a nod to how you have essentially hijacked the ship.
 * The item's name is a reference to Treasure Island, where pieces of paper marked with a black spot play a central role.
 * The buff tooltip "You're the captain now" may be a reference to the 2013 american film "Captain Phillips".