Earthen or stone barriers protect most homesteads and farming enclaves thanks to their ease of creation and general sturdiness even with a lack of upkeep.
Level 2, R2
Casting Time: 5 rounds
Spellcraft DC: 15
You raise a 5ft cube of compacted earth, stone, sand or clay from the ground, creating a unworked stone or earth wall 5ft thick, 5ft tall and 5ft wide in a space within 20ft of you. For every 5 points by which you exceed the Spellcraft DC, you may raise an additional 5ft cube. Additional cubes can add dimensions to an existing unworked stone or earth wall; making it thicker, taller or wider by 5ft.
Creatures occupying spaces affected by this ritual can tell what spaces are being raised and easily avoid them.
The caster may take a voluntary -10 penalty to their Spellcraft check to create a hewn stone wall instead, or a -20 penalty to create a masonry wall.
Special: If more than one caster performs this ritual simultaneously within 20ft of one another, all involved casters gain a +2 to their spellcraft rolls for each additional mage taking part in the ritual.
Special: If you have an Expertise related to masonry or architecture, you may add your Expertise bonus to this Spellcraft roll.
Ritual Cost: 200gp