Bounce

A springy patch of fabric covers the ground in a 15-foot square centered on a point within range and turns it into difficult terrain for the duration.

When the patch appears, make an Arcana check: each creature standing in its area must succeed on a Dexterity saving throw or fall upwards a distance equal to the check. A creature that enters the area or ends its turn there must also succeed on a Dexterity saving throw or fall upwards. A creature can make a Dexterity saving throw to grab onto a fixed object it can reach, thus avoiding the fall. If some solid object like a ceiling is encountered in this fall, falling objects and creatures strike it just as they would during a normal downward fall. Then, the creature or object falls as normal, moving 10 feet away from the patch in the direction they were moving.

If a creature or object falls directly onto the patch, after it falls upwards it will come straight down and fall prone while taking a max of 1d10 falling damage. If cast at a higher level, for every slot level above 1st, add your proficiency+spellcasting ability modifier to the distance targets that fail to save fall up.