Homebrew
0-level (Cantrip) Evocation
You imbue the weapon used in the spell’s casting with thunderous power and make an attack with it against a creature you can see. On a hit, the target suffers the weapon attack’s normal effects, and is also knocked 5 feet directly away from you. The weapon emanates a peal of thunder that is audible within 300 feet.
At 5th level, the attack deals an extra 1d6 thunder damage to the target on a hit. The damage increases by 1d6 at 11th level (2d6) and 17th level (3d6).