Hydaelyn

Flames wreathe one creature you can see within range. The target must make a Dexterity saving throw, taking 8d6 fire damage on a failed save, or half as much on a successful one. If it fails, the target burns for the spell’s duration, shedding bright light in a 30-foot radius and dim light for an additional 30 feet. At the end of each of its turns, the target repeats the saving throw, taking 4d6 fire damage on a failed save, and the spell ends on a successful one. These magical flames can’t be extinguished by nonmagical means. If the damage from this spell kills the target, it is turned to ash.