Thunder Strike

Once before the spell ends, you can give yourself advantage on one weapon attack roll on your turn. That attack deals an extra 1d10 thunder damage on a hit. A creature struck by this attack is moved 5 feet away from you and knocked prone.

At Higher Levels. If you cast this spell using a 2nd-level spell slot or higher, the damage increases by 1d10, and the distance the target is pushed increases by 5 feet for every spell slot level above 1st.