Duskflare

You summon the chaotic forces of light and shadow within you, unleashing a devastating explosion of twilight energy. A sphere of flickering light and dark radiates from a point you choose within range. The area briefly shifts between blinding light and engulfing shadows, disrupting both the physical and spiritual forms of creatures caught in the blast. Each creature in a 20-foot-radius sphere centered on that point must make a Dexterity saving throw. On a failed save, a creature takes 4d6 radiant and 4d6 necrotic damage. On a successful save, the creature takes half as much damage.

Objects in the area that aren’t being worn or carried are seared with the energy of twilight. Flammable objects ignite as normal, while nonflammable objects are scorched, leaving behind lingering marks of light and shadow that last for 1 minute.

Using a Higher-Level Spell Slot. The damage increases by 1d6 for each spell slot level above 3.