Rain of Fire

You create a whirling storm of fire in the air, calling down destruction upon your enemies. The firestorm appears at a height of your choice between 20 and 300 feet above you, centered above your current location.

When you cast the spell, and as a bonus action on subsequent turns, you can call down a 5-foot radius cylinder of fire at five points you can see within 120 feet. Creatures within an area must make a Dexterity saving throw, taking 8d6 fire damage on a failure or half as much on a success. A creature in more than one area is affected only once. The fire ignites flammable objects that aren’t being worn or carried.