Whirlpool

You conjure up a cyclone of water that swallows everything on the ground in an area within range. The area can be up to 30 feet wide, and each creature that starts or ends it's turn in that area must make a Dexterity saving throw. On a failed save, a creature takes 3d6 Bludgeoning damage and is pulled up to 15 feet towards the center of the area. On a successful save, a creature takes half damage and isn't moved.

This spell's area acts as Difficult Terrain, and all unprotected flames in its area are put out. If a creature fails the saving throw while already at the center, it is knocked Prone rather than being pulled.

Higher Level: The damage increases by 1d6 for each spell slot level above 3.