D'Espernons Ashing

As you put your clenched fist up to your mouth and blow through, a large mass of burning ash and smoke fills the space in front of you. Each creature in a 30-foot cone must make a Constitution saving throw. A creature takes 4d6 fire damage and become blinded on a failed save or half as much damage on a successful one and will not be blinded.
A creature blinded by this spell makes another Constitution saving throw at the end of each of its turns. On a successful save, it is no longer blinded.

At Higher Levels: When you cast this spell using a spell slot of 5th level or higher, the damage increases by 1d6 for each slot level above 4th.