Inaccurate?

Divine Damage Reduction

( Races of Stone, p. 137)

[Divine]

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

Prerequisite

Earth Sense (RS) , Earth's Warding (RS) , CON 13, WIS 13, 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 benefi t lasts for a number of rounds equal to your character level. You must be touching the ground to use this feat.