Mystery Legendary Yo-kai

are a special class of Legendary Yo-kai debuting in Yo-kai Watch 3. Many of the Yo-kai in this group are based on ancient times, with a large number of Mystery Legendary Yo-kai having Egyptian themes.

Beyond that, not much is known about the Mystery Legendary Yo-kai.

Trivia

 * The Mystery Legendary Yo-kai are the only new Legendary Yo-kai subcategory to not have a representative of the Brave tribe.
 * The Mystery Legendary Yo-kai are either based on contemporary figures in mythology or pop culture references:
 * Mazinkhamun is based on 's sarcophagus, with Mazinkhamun's face being a reference to the design seen in the super robot series .
 * Go-king Dead's name is a pun on the TV show.
 * Pandora is based on from Greek mythology, who is infamous for the Pandora's Box incident.
 * Reaction King is most likely a reference to the classic cartoon.
 * Nyastet is based on, an Egyptian goddess of war that once was represented by a lioness until later being represented as a cat following the unification of ancient Egypt.
 * Zurabis is based on, an Egyptian god of the dead, specifically a Judge of the Dead, who weighs the hearts of the deceased to see if they were worthy of passing on.