Zoro wielding Enma for the first time

 

Name: Enma
Origin: One Piece
Type: Katana (one of the 21 Saijo O Wazamono (the highest quality swords within One Piece, which means “Supreme Grade Swords”))
Powers and Abilities: In the hands of a master swordsman, it complements the user by greatly enhancing their cutting power and destructive potential, very durable (can withstand extreme temperatures like Kaido's Boro Breathe), can draw out the wielder's Haki, can be turned into a black blade further increasing its destructive capabilities
Destructive Capacity: Multi-continent level+ in the hands of Oden and Zoro
Wielder(s): Oden and Zoro
Material or Element: Likely steel and or other premium materials (is one of the highest-graded weapons in the One Piece series)
Needed Prerequisite for Use: Master-level skill is needed in order to harness its full potential, high-level Color of Armament Haki (Enma has a tendency to draw out the wielder's Haki and if they are inadequate then it'll drain them to a husk)
Notable Attacks/Techniques or Alternate Forms:

- See Oden and Zoro

 

Oden drawing Enma