Thunderblast

A forceful wave of thunder smashes a creature within range. The target must make a Strength saving throw, taking 2d10 thunder damage and being pushed back 15 feet on a failed save. On a successful saving throw, a target takes half damage and suffers no additional effects. 

At Higher Levels. When casting this spell using a spell slot of 2nd level or higher, this spell deals an additional 1d10 damage for each slot level above 1st.