Fissure

You slam the ground and create a 15ft wide fissure up to the target point. Those at the edges of the spell’s range may spend 1 RP to Sidestep 5ft out of the effect. All caught in the effect fall down 20ft into the fissure 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.