Zoro could potentially blacken one of his swords soon. In the Elbaf arc, Zoro could go on to blacken his first blade, and this would be a major power-up for him.

Roronoa Zoro remains one of the most popular characters to spawn from the brain of One Piece creator Eiichiro Oda. Remaining one of the first members of Monkey D. Luffy’s crew, Zoro’s dream is ...