Thunderbomb

A loud screeching sound streaks from your pointing finger to a chosen spot within range. Once the sound has completed its journey, a massive explosion occurs, resulting in a thunderous boom which may be heard up to 200 feet away. Each creature in a 20-foot radius must make a Constitution saving throw. On a failed save, a creature takes 4d12 thunder damage and is accelerated 10 feet away from the explosion, becoming prone in the process. On a successful save, it takes half as much damage and isn't moved by the spell.

At Higher Levels. When you cast this spell using a spell slot of 5th level or higher, the damage increases by 1d12 for each slot level above 4th.