Destroy Ground

You destroy natural earth with magical speed, creating up to a 10ft x 10ft x 10ft hole in most natural earth. Those caught in the effect may spend 1 RP to Sidestep 5ft out of the effect. All caught in the effect fall down 10ft into the hole and take falling damage as normal.

The spell requires natural ground to be below the touching surface to function. It may work on the bottom floor of a house, but will fail if used higher up or in some dungeons