Pirate Map

The Pirate Map can be dropped by any enemy in and close to the ocean during hardmode with a 1% chance. It summons a Pirate Invasion when used, which can be used to gain the Pirate vanity set and weapons.

Farming
It can be farmed by setting up an artificial Meteorite Biome and killing all of the Meteor Heads. If the player has made a Neptune's Shell and has any kind of attacking minion (such as the Pygmy Staff), they can also simply wait underwater, allowing the minion to kill enemies as they spawn. A Water Candle and/or Battle Potion will speed up the process.