Thunderous Thwack

You swing the material component and whack a creature or a Large or smaller object within range, using them as a conduit for the coming bang. Make a melee spell attack against the target. on a hit, the target takes 3d12 thunder damage, and half as much damage on a miss.

Also on a hit, the thunderous impact reverberates out from the target. All other creatures and objects within 5 feet of the target other than you must succeed a Constitution saving throw or take thunder damage equal to half the initial damage.

Hit or miss, the spell emits a loud bang, audible from up to 300 feet away.

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, the damage increases by 1d12 for each slot level above 2nd.