Wondrous Item, legendary (requires attunement by a creature with Celestial blood)
As an action, you can present this amulet, and any magical darkness within 30 feet of you is dispelled. Additionally, each hostile creature within 10 feet of you must make a Constitution saving throw. A creature takes 2d10 radiant damage on a failed saving throw, and half as much damage on a successful one. When you take this action, make an Arcana check. Consult the following table to determine the additional effect:
- 1-9: You take the full radiant damage
- 10-15: You take half damage
- 16-19: You take no damage
- 20+: You take no damage and the hostile creatures are Blinded
You may use this feature a number of times equal to your proficiency modifier. You regain all expended uses when you finish a long rest.
Notes: creature with Celestial blood