Thunderclap

Spell: Thunderclap Level: 2
School: Evocation
Casting Time: 1 action
Range: 60 feet
Components: V, S
Duration: Instantaneous
You clap your hands and release a thunderous shock wave. All creatures within a 20-foot cone centered on a point within range must make a Constitution saving throw. On a failed save, a creature takes 3d6 thunder damage and is knocked prone. On a successful save, the creature takes half as much damage and is not knocked prone.
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.