By thrusting your arm downward, you complete the casting of the spell. Nearby, a roughly formed arm about the size of a human erupts from the ground and grasps at the air.\n\nThis spell functions like earthen grasp, except as noted here.\n\nThe stony arm can appear from any natural surface, including unworked rock, earth, mud, grass, or sand. The stone arm has AC 18, hardness 8, and 4 hit points per caster level.