Divine Damage Reduction [Divine]

You can channel energy to give yourself a small amount of protection from weapons.

Prerequisites: Con 13, Wis 13, Earth Sense, Earth’s Warding, ability to rebuke earth creatures.

Benefit: As a standard action, you can spend one of your rebuke earth creatures attempts to give yourself damage reduction 2/adamantine. This benefit lasts for a number of rounds equal to your character level. You must be touching the ground to use this feat.

Source: Races of Stone, page 137.