Azmar's Sand burst

You hurl a  ball of sand that erupts from a point you choose within range. Each creature in a 5-foot-radius sphere centered on that point must make a Dexterity saving throw. On a failed save they take 3d6 bludgeoning damage and are blinded until the end of their turn. On a success they take half damage and are not blinded.

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, the damage increases by 1d6 for each slot level above 2nd.