As one of the twenty-one finest katanas in the One Piece world, Wado Ichimonji is a powerful blade when used by a competent swordsman. It is also quite durable, as shown when Dracule Mihawk’s Kokuto Yoru shattered two of Zoro’s swords, this is the only one that did not break at all. When used by Zoro, this sword is usually placed in his mouth for his Santoryu. When using his Ittoryu, Zoro usually uses this sword for it. Its toughness is further demonstrated by the fact that Zoro used it for his Itto-Ryu Iai: Shishi Sonson technique against Mr. 1, cutting through his steel body.