5th level Conjuration
Classes: Magus, Oracle, Sorcerer, Wizard
Domains: Creation, Earth, Generic
Components: V, S, M (A small block of granite)/DF
Casting Time: Standard
Range: 120 ft
Effect: Stone wall whose area is up to 16 five-foot squares
Duration: Instantaneous
Saving Throw: See text
Spell Resistance: No
Description: This spell creates a wall of rock that merges into adjoining rock surfaces. A wall of stone is 4 inches thick (hardness 24) composed of up to sixteen 5-foot squares. You can double the wall's area by halving its thickness to 2 inches (hardness 16). The wall cannot be conjured so that it occupies the same space as a creature or another object.
Unlike a wall of iron, you can create a wall of stone in almost any shape you desire. The wall created need not be vertical, nor rest upon any firm foundation; however, it must merge with and be solidly supported by existing stone. It can be used to bridge a chasm, for instance, or as a ramp. For this use, if the span is more than 20 feet, the wall must be arched and buttressed. This requirement reduces the spell's area by half (to eight 5-foot squares). The wall can be crudely shaped to allow crenellations, battlements, and so forth by likewise reducing the area.
Like any other stone wall, this one can be destroyed by a disintegrate spell or by normal means. It is possible, but difficult, to trap mobile opponents within or under a wall of stone, provided the wall is shaped so it can hold the creatures. Creatures can avoid entrapment with successful DEX saves.