Thunder Punch

You charge your hand with thunder power. Make a melee spell attack against the target. On a hit, the target takes 3d8 thunder damage.

The target must make a strength saving throw against your spell save dc. On a failed save, the target is pushed 5 feet away.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the damage increases by 1d8 for each slot level above 1st.