Vertiginous Blast

You choose a spot on the ground that is in your line of sight and in range. The ground within a 20-ft sphere appears to shift violently. Each creature within the area of effect must make a Wisdom saving throw. On a failed save, the target takes 6d6 Psychic damage and is knocked Prone. On a success, the the creature takes half damage and is not knocked Prone.

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, the damage increases by 1d6 for each slot level above 3rd.