Mariana

The Mariana is a craftable Hardmode broadsword that autoswings. When killing an enemy, the enemy explodes into four or five bubble projectiles that travel for a long distance. These bubbles can bounce off of tiles infinitely as well as pierce twice, popping on the third enemy hit or after roughly two seconds have passed.

Trivia

 * The sword's name is a reference to the Mariana Trench, the deepest known part of the world's oceans.
 * Prior to the introduction of the Aquatic Dissolution, the Mariana was used to craft the Terratomere. When its successor was added to the mod, the sword was replaced with Floodtide.