Twilight Scimitar (5e Equipment)

Weapon (scimitar), uncommon (requires attunement by a non-evil creature)

This weapon was forged under twilight. It was found in the depths of the deepest cave. If the scimitar falls into the hands of evil, it loses its power until it is out of the wrong hands.

Cavern glow: It glows when you want it to. It gives off 15 ft of dim light in darkness and 25 ft of bright light in dim light.