Fan:Ouroboros Stone

An Ouroboros Stone is a heavenly stone that is wielded by a Tamer. It is an object that allows a Digimon partner to digivole to Ultimate and beyond. The stones go through two phases depending on the growth and maturity of both the Tamer and Digimon. The first phase is called "Heavenly Metal" which allows a Digimon to Digivolve to Ultimate-Level and the second and final phase is "Wandering Star" which is a Digimon to Mega-Level and possibly to a Transcendent-Species.