Ama no Murakumo no Tsurugi

In Japanese folklore, Ama no Murakumo no Tsurugi, dubbed the "Sword of the Gathering Clouds of Heaven" or "Grass-Cutting Sword," is a legendary black blade with demigod status. Once owned by the Heretic God Susanoo, it wields immense power, granting its wielder control over wind and the potential to surpass even Great Knights. With a mystique that includes the ability to possess its handler in the Netherworld, this divine sword is a formidable force, requiring the strength of Divine Possession to fully unlock its capabilities.