The material below is Open Game Content from a 3PP Source
Hairline Fractures
School transmutation; Level cleric 1, druid 1
Casting Time 1 standard action
Components V, S, M
Range touch
Target 5-foot-square section of stone or a creature with the earth subtype
Duration 1 round/level
Saving Throw Fortitude negates (object); Spell Resistance yes (object)
With a single touch, you create momentary hairline fractures in a piece of stone or a creature with the earth subtype. If you cast this spell on a section of stone, you reduce its hardness to 5 and its hit points to 10/inch of thickness. If you cast this spell on a creature with the earth subtype, that creature takes a –2 penalty to AC for the spell’s duration. A make whole spell reverses this spell’s effect.