Chaos Burst

A blast of chaotic energy erupts from your hands. Each creature in a 30-foot cone must make a Constitution saving throw. A creature takes 4d6 necrotic damage plus 4d6 radiant damage on a failed save, or half as much damage on a successful one.

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, the damage increases by 2d6(1d6 for each damage type) for each slot level above 3rd.