Concussive Wave

A wave of incredibly condensed air blasts outward from you in a direction you choose; the wave is 5 feet wide and travels for 60 feet (or until it meets a solid surface, such as a wall). All creatures within the area of effect must make a Strength saving throw. On a failed save, a creature takes 2d10 thunder damage and is knocked prone. On a successful save, the creature takes half as much damage and isn't knocked prone.

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, the damage increases by 1d10 for each slot level above 2nd.