Gilt Ruin (5e Equipment)
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Weapon (longsword), artifact (requires attunement by a good creature)
An onyx blade affixed to a golden hilt. Crafted by the first Morning Star Witch Hunter, this blade draws on the power of the radiant dawn and the fury of the reaper alike.
Gilt Ruin has darkvision and can see through magical darkness within a range of 120 feet and can hear out to that range as well. Gilt Ruin has a passive perception of 20 and has a unique sense that allows it to truthfully determine the alignment of any creature within 60 feet of it. This sense can be foiled by the spell nystul's magic aura, however.
Should the wielder ever end a creature's life out of any reason other than duty or survival, or the wielder willingly performs an act of evil, a conflict will arise. If there is a conflict, the wielder must make a Wisdom saving throw (DC 18) or be charmed by Gilt Ruin for 24 hours. If the wielder passes this saving throw, they become immune to this effect for 24 hours. Also, while the wielder is charmed by Gilt Ruin, they lose access to the "Invoke Ruin" power of the blade until they are no longer charmed.
Invoke Ruin: As a part of a weapon attack with this sword, the wielder may release some of the wicked power locked away within Gilt Ruin. On a successful attack, you may choose to deal an additional 5d8 necrotic damage to the target creature. If the creature's hit points are reduced to 25 points or fewer as a result of this attack, that creature dies. You may use this feature once before regaining the ability to do so upon the next dawn.
Ruin's Mercy: Gilt Ruin has 5 charges, and regains 1d4 + 1 charges daily at dawn. As an action, you may slice a creature with this weapon and expend 1 charge. This creature regains 5d6 hit points.
Your Wounds are Mine:
As an action, you may slice a creature with 0 hit points with this weapon. When you do so, you take 3d10 points of necrotic damage that bypasses resistance and immunity, but the dying creature regains hit points equal to the damage you take. You may use this feature once, and regain the ability to do so at the next dawn.