You choose a point on the ground in an area of dirt or natural stone you can see. The ground buckles and a 5-foot radius, 10-foot deep pit opens around that point. If the surface is not large enough to contain the pit, the spell fails. Creatures in the area must make a Dexterity saving throw. On success, they can move 5 feet outside the radius of the spell. Creatures that fail their saving throw fall to the bottom of the bit (taking 1d6 bludgeoning damage and falling prone). The sides of the pit are rough, and can be climbed. The pit remains until filled. If a creature saves, but cannot move 5 feet, they fall prone, hanging from the edge of the pit, and cannot stand until they move out of the pit area or fall into it.  

Limitations The spell fails if the pit would breach another opening (such as a room or cavern below) as that would be failing to contain the pit. The GM has wide discretion on what surfaces would qualify for this spell.