Handle made out of charred blackwood with an obsidian palm and brass guard that's wider than normal Katana. The wrapping is a mixture of Indigo and Black.
The Scabbard is a solid black Damascus Tube. When the sword is pulled from the scabbard, the liquid adamantium comes out of the scabbard to form the weapon.
If you are not attuned to this weapon the blade does not form.
Proficiency with a Longsword allows you to add your proficiency bonus to the attack roll for any attack you make with it.
This weapon has the following mastery property. To use this property, you must have a feature that lets you use it.
Sap. If you hit a creature with this weapon, that creature has Disadvantage on its next attack roll before the start of your next turn.
Notes: Bonus: Magic, Replace Damage Type: Force, Bonus: Armor Class, Fighter/Barbarian, Versatile, Sap