This technique originally lacked a name. Though, because it was heavily influenced by Asura's very own battle avatar, Seigetsu Uchiha and Naruto Uzumaki found it appropriate that they named it after him. Naruto has stated on the true successors of Hagoromo's ideals and sacred chakra can unlock this ability. Not only does one have to have this very holy chakra, but you must also have a pure positive heart. This special transformation has been classified as a gift from the angels up above.