Zoro’s Final Sword Set Revealed?! Supreme Grade Theory #onepiece There’s a growing theory among One Piece fans that Roronoa Zoro is destined to wield a Supreme Grade Sword in the final saga. While Zoro currently carries Great Grade blades like Enma and Wado Ichimonji, history shows that Supreme Grade swords are not born — they are forged through battle, will, and Conqueror’s Haki. This theory explores how Enma could ascend into a Supreme Grade Blade once Zoro fully masters Advanced Conqueror’s H