Vector Addition

As a reaction to falling or to seeing a creature fall, you can enhance its velocity, causing the area where it falls to crack under pressure.

When the creature reaches the ground, it takes falling damage as normal, then it, and all other creatures within a 15-foot radius of it, must make a Dexterity saving throw, taking 4d8 magical bludgeoning damage on a failure and half on a success.

If the creature lands directly onto another creature, it instead bounces up 5 feet before landing next to it and taking no fall damage. All other creatures must make the saving throw, taking 6d8 instead of 4d8 magical bludgeoning damage on a failed save and half on a success.

When you cast this spell using a spell slot of 4th level or higher, the damage increases by 1d8 for each slot.