Duskfire Lament

Description: You call upon the Raven Queen's twilight, weaving starlight and shadow into a burst of soul-rending fire. The air chills as ghostly embers fall like fading stars and a low, mournful hymn echoes faintly as the veil of life trembles.

Effect: Each creature of your choice in a 10-foot radius centered on a point within range must make a Constitution saving throw. On a failed save, the creature takes 4d8 radiant or necrotic damage (your choice when you cast the spell). On a success, the creature takes half as much. Undead and fiends make this saving throw with disadvantage.

If a creature is reduced to 0 hit points by this spell, it is consumed in a flare of pale starlight, leaving no corpse behind.