Dust Storm

Until the spell ends, dust and ash fall in a 20-foot-tall cylinder with a 40-foot radius centered on a point you choose within range. The area is heavily obscured, and exposed flames in the area are doused.

The air in the area is filled with choking amounts of dust and ash. When a creature enters the spell's area for the first time on a turn or starts its turn there, it must make a Constitution saving throw. On a failed save, it becomes blinded and take 4d4 Bludgeoning Damage.

If a creature starts its turn in the spell's area and is concentrating on a spell, the creature must make a successful Constitution saving throw against your spell save DC or lose concentration.