Crushing Gravity

This Spell is a Rare Spell these type of spell you need to find or unlock from a spell scroll or some other Source(optional rule)

Choose a point on the Ground you can see. A 20-foot diameter, 30-foot high cylinder of heavy gravity pulls creatures to the ground.

Flying Creatures are pulled to the ground and their flying speed is 0 while in this area. The area is also considered difficult terrain for creatures trying to move through it.

When a creature first enters the target area, and at the beginning of each of its turns, that creature must make a Strength saving throw, unless already prone. On a failed save, The creature takes 5d6 bludgeoning damage, is pulled from their feet and knocked prone, and, while still in this area on their turn, cannot stand up from being prone. On a successful save, they take half damage and are not knocked prone. Flying creatures fail this save automatically.

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, the damage increases by 1d6 for each slot level above 3rd.