Thunderwave

1 A, V, S, Self (15-foot cube)
Each creature in a 15-foot cube must make
a Constitution saving throw. On a failed save,
take 2d8 thunder damage and move 10 feet
away from you. On a successful save, take half
as much damage and isn’t pushed. In addition,
unsecured objects within the area move 10 feet
away from you. and the spell emits a thunderous
boom audible out to 300 feet.
Using a 2nd level or higher spell slot, the damage
increases by 1d8 for each slot level above 1st.