Blastwave

You summon a surge of explosive energy from within and release it in a powerful shockwave centered on yourself. All creatures within a 15-foot radius sphere centered on you must make a Dexterity saving throw. On a failed save, a creature takes 3d6 force damage and is pushed 10 feet away from the center of the explosion. On a successful save, a creature takes half damage and isn't pushed.

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.