Over the course of One Piece's thousand chapters and episodes ... specifically the scythe Killer used when in Wano as Hitokiri Kamazo. With Gyukimaru having stolen Shusui from him, Zoro was ...

After the timeskip of One Piece, Zoro showcased his mastery over ... He was made to fight against strong characters such as Kamazo, and, in the Onigashima section of the arc, even Kaido.