Cutlass

The Cutlass is a rare sword that is dropped by Pirate Deckhands in a Pirate Invasion. It appears to be a scimitar with a gold handle and an iron blade. The Pirate Invasion is summoned when using a Pirate Map, but it can also spawn randomly. The Cutlass deals very high damage, even higher than Excalibur. The Cutlass has a very fast attack speed and you can swing it continuously.

Trivia

 * This can be considered a Hardmode equivalent of the Muramasa - it automatically swings, has a lightning-fast attack speed, and relatively low knockback.
 * Strangely, this has a lower rarity than the Excalibur, despite it being stronger than the latter.
 * In the game, the white pixels in the Cutlass' sprite appear to be missing, making those parts completely transparent.
 * When talking to an NPC, you can only swing your Cutlass once per click, meaning you cannot swing it continuously.
 * The best prefix is Legendary
 * Even though it drops from Pirate Deckhand, the Pirate Corsiar seems to hold it