Banrai (万雷, heavy thunder) is a mystical chain sickle (鎖鎌, kusarigama) from the 2003 TMNT TV series. It is introduced during the Lost Episodes as a weapon with the ability to "crush mountains with its thunder." With Banrai, the user is able spin rapidly in a horizontal or vertical position to mow down their enemies in a way not unlike a buzzsaw. By plunging Banrai into the ground, the user is able to trail lightning across the surface and shock an opponent. Banrai is one of the Fangs of the Dragon, and was the weapon claimed by Raphael from the Spirit Forge. The weapon is so powerful that Juto-Shisho expressed genuine shock that Raph had obtained it. It is unknown what happened to Banrai after the Tengu Shredder's defeat.
Juto (describing the weapon): Banrai, which can shatter mountains with its thunder.
Raph: Give'em shell, Banrai!