The Millennium Ring is a fictional artifact from the popular anime and manga series Yu-Gi-Oh! It is one of the seven Millennium Items, each possessing unique powers and abilities. The Millennium Ring is associated with the character Marik Ishtar and has the ability to sense the presence of other Millennium Items and their wielders. In the series, the Millennium Ring also serves as a tool for the Shadow Games, which are dangerous duels that can have real-life consequences. The ring is intricately designed, featuring a distinctive shape and symbols that reflect its mystical nature and connection to ancient Egyptian lore.