Subseries warning: This article or section contains information on a subseries within the Legend of Zelda series and should be considered part of its own separate canon.
Wizzro's Ring is a Wizzro's Gold Material drop in Hyrule Warriors and Hyrule Warriors Legends. It apparently represents Wizzro's true form, as he was originally a Ring that absorbed the dark magic of the various dark magic users who had worn it over the centuries, before it eventually transformed into the monstrous evil spirit known as Wizzro.
Subseries warning: Subseries information ends here.