3-level Evocation
With a somatic gesture, you evoke a spherical blast of white light at a point within range. Each creature in a 20 foot radius sphere centred on that point must make a Constitution saving throw. A target takes 5d6 radiant damage on a failed save, or half as much damage on a successful one. Creatures have disadvantage unless they are a celestial, construct, dragon, or undead.
When you cast this spell using a spell slot of 4th level or higher, the damage increases by 1d6 for each slot level above 3rd.