Ninestrike is a Dark Instrument that is used by Ninetails in its true form and in Evil Rao guise. The weapon is capable of slashes and stabs, as well as a devastating charged slash. Ninestrike, although bearing a "divine" (or demonic) appearance, is just made of normal metal and alloys, which makes it vulnerable to Thunderstorm. Amaterasu took advantage of this in her battle against Ninetails.