Harry Potter - Secrets of Hogwarts

You place immense downward pressure on a target you can see within range. If the target is a creature, it must make a Strength saving throw. On a failed save, a creature takes 5d8 bludgeoning damage and is knocked prone. On a successful save, the creature takes half as much damage and isn’t knocked prone. If the target is a flat surface, this will either create a crater or collapse the surface.