Yasakani no Magatama (ヤサカニノ禍魂, Evil Soul of Yasakani) was a special unit of Hades: Izanami. The type and origin of the weapon is unknown.
In its sealed form, Izanami wears it like a crown. After it is released, Yasakani no Magatama floats behind her in a circular shape, breaking only when she uses the bits to attack and throw her opponent.
After it is spread, it takes triangle form with pieces connected by weak streams of energy. Izanami can use the pieces for long-ranged combat.