Dreadnautilus

The Dreadnautilus is a Hardmode miniboss that is summoned by Fishing at an Ocean during a Blood Moon.

Attacks

 * It will spin around the player for about ~3 seconds.

Tips

 * It is recommended to have an arena set up with platforms.
 * The Dreadnautilus cannot be summoned if another biome takes priority over the Ocean, such as a Graveyard.

Trivia

 * It resembles a.
 * Its name is a combination of the word "dread" and "nautilus".
 * Its original name was "Blood Nautilus" in an official trailer.
 * Its eye appears to be bleeding.