Direct Wind

You can manipulate the air around you to create a ball of air in an unoccupied space within range, including in the sky above you.

Any creatures that start or end their turn in the same space as the ball of air must make a dexterity saving throw against your spell save DC. On a fail they are knocked prone, on a success nothing happens.

As a bonus action on each of your turns you can move the ball up to 10 feet in any direction including straight up.