Yoruken

"A sword to which I am the open flame!"

is a large Obsidian sword, comparable in size to the Kubikiribōchō. It is described as "the Hottest Sword in all The Shinobi World.. And from it's Obsidian composition, which is naturally sharper than qualified Steel, a blade capable of easily slicing through other swords. What makes Yoruken unique is the fact that Hinokagatsuchi, like Red Carnation, made Yoruken from his own Lava Release Chakra, and such, only he can use it's immense abilities. Red Carnation and Yoruken follows Muzai's belief that only weapons birthed from one Kekkei Genkai are capable of use.

Appearance
Yoruken is a large back broadsword made of complete Obsidian. Its hilt has a symbol engraved. When used, unlike other metals which turn red when being heated, Yoruken keeps its dark color.

Abilities
Being comprised of Obsidian completely, Yoruken has a sharper cutting power than most steel weapons without him activating his Kekkei Genkai. He can decapitate a man as if their neck had been made of butter. And with his strength, handling such a large blade requires zero to no energy. Yoruken's primary function is its ability to heat up through his lava release. By channeling Lava Release chakra through his sword, his blade can reach heats that would usually destroy a normal sword. This also gives it a unique ability to cut through almost anything....

With his Earth Release chakra, Hinokagatsuchi can stab the earth to create earthquakes and other phenomenon....