Downfall

You curse a creature you can see within range with a gravitational pull. Until the spell ends, the target takes extra fall damage every time it falls at least 10ft. equal to the spell level the spell was cast on. At 1st level, add 10ft. to any fall the target takes.

Additionally, as a bonus action you can force the target to make a Strength saving throw against your spell save DC. Upon failure, the target is forced prone and it takes fall damage equal to falling 10ft (1d6 bludgeoning).

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the extra fall damage increases by  equal to another 10ft. of falling (extra 1d6 bludgeoning damage).