The Obliterator

The Obliterator is a post-Moon Lord yoyo dropped by The Devourer of Gods. Unlike other yoyos, The Obliterator ignores NPC immunity frames, allowing it to rapidly bounce off of enemies and inflict much more damage than its damage stat would indicate. If enemies are nearby, The Obliterator will rapidly fire nebula lasers which do 25% less damage than the yoyo itself. The nebula lasers inflict the Frostburn and On Fire! debuffs.