Cleansing fire ball

A bright white streak flashes from your pointing finger to a point you choose within range and then blossoms with a low roar into an explosion of shining white flame. Each creature in a 20-foot-radius sphere centered on that point must make a Dexterity saving throw. A target takes 8d6 fire damage on a failed save, or half as much damage on a successful one.

The blinding fire spreads around corners. For the unnatural, demonic, undead, or wicked intent, the fire burns both body and soul. For those who are unaligned, it burns as if it were a natural fire. But the righteous of the pure heart remain unharmed and unscathed. All Evil, undead, or demonic entities in the radius take 2d6 radiant and 2d6 psychic damage.

At Higher Levels. 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.