Worochi-no-Aramasa

Worochi-no-Aramasa  is a Spirit Sword, one of the Totsuka-no-Tsurugi, which chose Hisashi Sumeragi as it's wielder.

Description
Worochi-no-Aramasa is a Totsuka-no-Tsurugi tied with the Ame-no-Ohabari for the strongest, which the Storm God Susanoo-no-Mikoto used to kill the Eight-Headed Serpent Yamata-no-Orochi. Forty years ago, the spirit sword chose Hisashi.

It has the ability to generate and control wind on a major scale. It also has a special move named Ame-no-Habakiri.