In an upcoming “Birthday Cards” release from the series, a profile for Zoro ... fans swore they had seen Zoro use the power during his fight against Kaido in the Wano Arc but the cards ...

Zoro showcases new abilities in pivotal arcs like Fishman Island, Dressrosa, and Wano. Engaging story arcs like Enies Lobby and Thriller Bark highlight Zoro's loyalty and power progression.

Zoro ultimately proved himself by defeating Ryuma, earning his first blackened blade (hopefully not his last!). He used it until Wano. Zoro returned Shusui to the grave of its master but was ...