The One Piece storyline has a lot of attention to detail which creates confusion and one of them is connected to Roronoa Zoro ...
Zoro has yet to fully master using Enma even though he did gain some mastery over the sword during his fight against King at Onigashima. Interestingly, Enma has yet to be forged into a black blade ...
Zoro developed King of Hell Three Sword Style: 103 Mercies - Dragon Damnation in Wano, using Enma power. The technique combines Supreme King and Armament Haki, increasing Zoro's attack power ...
These users have shown the most potential with it. Not only is he a master of Observation and Armament Haki, but, thanks to Enma, Zoro has now managed to tap into Conqueror’s Haki as well.