Dig

A dig spell enables the caster to excavate 125 cubic feet of earth, sand, or mud per round. 

The hole thus dug is a cube 5-ft per side. The material thrown from the excavation scatters evenly around the pit. If the magic-user continues downward beyond 5-ft there is a chance that the pit will collapse: 15% per additional 5-ft in depth in earth, 35% per additional 5-ft depth in sand, and 55% per additional 5-ft depth in mud. 

Any creature at the edge (1-ft) of such a pit uses its Dexterity score as a saving throw to avoid falling into the hole, with a score equal to or less than the Dexterity meaning that a fall was avoided. Any creature moving rapidly towards a pit area will fall in unless it saves versus magic. 

Any creature caught in the center of a pit just dug will always fall in. 

The spell caster uses a miniature shovel and tiny bucket to activate a dig spell and must continue to hold these material components while each pit is excavated.

This spell will inflict 5-20 hit points of damage if cast upon a clay golem.