Shadowcarver (5e Equipment)
From D&D Wiki
Weapon (saber), artifact (Requires attunement)
This blade has a black onyx hilt wrapped in grey leather that leads up to a steel guard. The blade itself is made of a black alloy of silver and mithral the edge of the silver blade is a scarlet red jewel. It curves into a wicked point and seems to be surrounded by an constant aura of radiance that is being continually sucked in by the blade.
Magic Weapon. Shadowcarver is a magic weapon that grants a +2 to attack and damage rolls made with it and does an additional 1d8 radiant damage to any fiends or 2d8 radiant damage if the enemy is from the Plane of Shadow or draws its powers from there.
Relentless Attack.You can use your reaction to make an attack on each of your turns while attuned to this weapon
Shadow magic. While you are attuned to this weapon you can expend an action to cast with the the shadow blade spell.
Shadow Steal. This sword has 6 charges if you score a critical hit against a creature with fewer than 100 hit points it must succeed on a DC 15 Constitution saving throw or be slain instantly as it’s shadow and in turn, life force is ripped from its body. The sword loses 1 charge if the creature is slain and when the sword has no charges remaining it loses this property. After killing a creature in this way due to the life energy drawn into Shadowcarver for 2 days after this effect it deals an additional 2d6 of radiant damage