Oden Two Sword Style

Oden Nitoryu is a swordsmanship style developed by Kozuki Oden. It is a variation of Nitoryu which Oden used while dual-wielding the legendary swords, Enma and Ame no Habakiri.

Overview
Oden Nitoryu is a style based on powerful attacks with two swords. It seems to place emphasis on Ryuo.

Oden wanted to teach his style swordmanship style to his retainers, but they refused. However, during their battle with Kaido 20 years after Oden's death, four of the Scabbards imitated an Oden Nitoryu technique.

Kozuki Oden

 * Togen Shirataki: Oden hardens both his swords using "Ryuo", then delivers a diagonal slash with each one of them at the same time. This technique has immense power and range, as seen when Oden used the technique to bisect the massive Mountain God in half. "Shirataki" is a type of Japanese noodles and a popular ingredient in oden, which follows the oden-themed naming scheme of Oden's techniques. In the VIZ Media translation, this is called Paradise Waterfall.
 * Gun Modoki (・): After hardening his swords using "Ryuo", Oden crosses his swords and charges forward, slicing anyone in his path. When Oden used this technique, he was able to defeat several members of the Roger Pirates at once. The attack name is a pun on "ganmodoki", Japanese fried tofu fritter made with vegetables and a popular side for oden, in keeping with the naming scheme of Oden's techniques. In the VIZ Media translation, this is called Gun Modoki.
 * Togen Totsuka: Oden hardens his swords using "Ryuo", then leaps toward his opponent performing an X-shaped slash powerful enough to give the nigh-invincible Kaido his permanent scar. "Totsuka" is a reference to the four Totsuka-no-Tsurugi mentioned in Japanese mythology, one of them being Ame no Habakiri. In the VIZ Media translation, this is called Paradise Totsuka.

Nine Red Scabbards

 * Togen Totsuka: One of Kozuki Oden's signature techniques performed by Kin'emon, Denjiro, Ashura Doji and Inuarashi. Together they are all able to simultaneously slash the same X-shaped scar given to Kaido by Oden 20 years ago.