An deathly silent explosion of cursed flame erupts from your pointed finger. Each creature in a 30 foot cone emanating from you must make a Dexterity saving throw. A target takes 8d6 fire damage on a failed save, or half as much on a success. The fire spreads around corners. It ignites flammable objects in the area that aren't being worn or carried. If a Construct or Undead fails its saving throw against this spell, they catch fire and take 2d6 fire damage at the start of each of its turns. They, or a creature within 5 feet of them, can use their action to snuff out the flames, ending the damage. The flames of this spell are cursed and ignore resistance to fire damage.

At higher levels: The initial fire damage increases by 1d6 for each spell slot level above 4th.