This homebrew was made by u/Monkey_DM on Reddit, who has given clearance for a port by me to DnDBeyond.

Make a melee spell attack against a creature within range, on a hit it takes 1d4 bludgeoning damage and is pushed 10 feet in a straight line in any direction of your choice. In addition, its speed is reduced by 5 feet until the start of your next turn.

This spell's damage increases by 1d4 when you reach 5th level (2d4), 11th level (3d4), and 17th level (4d4).