You have mastery over earth, metal, and stone, can fire darts of acid, and command earth creatures.
Granted Powers: You gain Elemental Channel as a bonus feat, even if you do not meet the
prerequisites. In addition, you add Climb (Str), Intimidate (Cha), and Survival (Wis) to your list of class skills.
Sphere Powers: You can select your sphere powers from the powers and revelations granted by the
Domain/Subdomain: Earth/Caves, Metal, Petrification, Radiation
Mystery: Metal (iron skin, iron weapon, and riddle of steel revelations only), Stone