The Cleansing Chorus

The flames of justice fill the casters chest with a burning power. The caster can unleashes a powerful song that unleashes cleansing flames in a 200 foot cone. A person of pure heart can choose who is affected by the flames. If a person is chosen to be spared, they only experience a small rise in their temperature but remain unharmed by the initial blast and the fire that spreads there after. Each creature in the area must make a Dexterity saving throw. It takes 15d10 fire damage on a failed save, or half as much damage on a successful one.

The fire damages objects in the area and ignites flammable objects that aren't being worn or carried. If you choose, plant life in the area is unaffected by this spell.