Oblivion

The Oblivion is a Hardmode yoyo dropped by Calamitas. While in use, it fires brimstone lasers at nearby enemies which deal half of the yoyo's damage. Both the lasers and the yoyo inflict Brimstone Flames.

Trivia

 * This weapon was previously known as "The Eye of Calamitas", and is still referred to as such in the mod's source code.
 * Its name and sprite at the time were a reference to The Eye of Cthulhu, another yoyo based on an eye-like boss.