The Totsuka-no-Tsurugi (十拳剣, lit. "Ten-hands Long Sword"), Ama-no-Habakiri (天羽々斬, lit. "Slash of Heavenly Wings"), Ame-no-Ohabari (天の尾羽張, lit. "Tail-feathers of Heaven"), or Worochi-no-Aramasa is the legendary sword of the Shinto god Susanoo. It was also the sword used by Izanagi[1] to kill his offspring, Kagu-tsuchi[2]. Taken (and slightly edited) from Wikipedia. [3]