Radiant Barrage

You fire a piece of ammunition from a ranged weapon or throw a weapon into the air and choose a point within range. From the ammunition or weapon thrown, hundreds of beams of radiant energy disperse and descend from above and then disappear. Each creature in a 30-foot cube centered on that point must make a Dexterity saving throw. A creature takes 8d8 radiant damage on a failed save, or half as much damage on a successful one. Any creature who fails the save takes an additional 2d6 fire damage as a result of being hit by the concentrated beams of divine light.