Weapon Rune (5e Equipment)
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Rarity: uncommon, rare or very rare
[Argent] A weapon rune is the UACs experimental result of combining of human technology and Hellish magic, in an attempt to develop anti-demon weaponry. It is a mesh of electronics and arcane runes that is affixed to the barrel of a firearm. It takes 1 minute to apply or remove the weapon rune. When the firearm is used to attack a creature with a certain number of hit dice or less, the firearm is considered to be a magical weapon. The number of hit dice depends on the weapon rune's rarity:
Using a weapon rune degrades both the rune and the weapon. 10 minutes after a weapon enhanced with a weapon rune is fired, both the rune and the weapon are rendered unusable and unrepairable.
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