Bone Blade

8th-level transmutation (Cleric)

  • Casting Time: 1 action
  • Range: Touch
  • Components: V, S, M (a bladed weapon and a bone from any creature)
  • Duration: Concentration, up to 1 minute

You touch a bladed weapon and transform it into an identical weapon made of white ivory. After the transformation, the weapon has the exact damage, size, and weight of the original, but has the following special properties:

  • It is unbreakable, though it crumbles to dust when the spell ends.
  • It is considered magical.
  • The blade inflicts an extra weapon die of damage against undead.
  • An undead creature struck with the weapon takes an additional 1d4 necrotic damage each round for the duration.
  • Once per turn, you can force an undead creature you hit with the bone blade to make a Wisdom saving throw. On a failed save, the creature is disintegrated. If an undead creature disintegrated by this weapon has a CR of 4 or more, the blade also crumbles to dust.