The Legendary Platinum Keys

Being the only real family of the Celestial Spirit World, these keys have proven themselves to be the rarest keys of them all. Only those who have the will to find them, the body to wield them, the mind to understand their power, the spirit to guide them, and the soundest soul to give them a home can wield them. It is a Lost Magic

Trivia

 * What makes the Legendary Keys so legendary is how rare they are.
 * The family of the Platinum Keys believes that all Celestial Spirits are equal in power and have equal the amount of power of the Gold Keys.