Earth's Warding

(Races of Stone, page 139, DnD 3.5)

[Divine]

You can channel energy to infuse your skin with the strength of the earth.

Prerequisite

Earth Sense, CON 13, WIS 13, ability to rebuke earth creatures

Benefit

As a standard action, spend one of your rebuke earth creatures attempts to increase your natural armor bonus by 2. This increase lasts for a number of minutes equal to your Constitution bonus.

Special

You must be touching the ground to use this feat.