Blasting Strike

You brandish the weapon used in the spell’s casting and make a ranged attack against one creature within range. On a hit, the target suffers the weapon attack’s normal effects, and you can cause a thunderous boom to blast forth from the weapon, shattering the weapon. The target must make a strength saving throw or take 3d6 thunder damage and be knocked prone for one round. On a success the target takes half damage and is not knocked prone. 

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the damage increases by 1d6 for each slot level above 1st.