Saving Throw: Will negates (harmless) Spell Resistance: No
A shaman does not always have to rely on physical weapons to strike at her foes in the material world. Armed with spirit claws, the shaman's body itself becomes a weapon.
When the spell is cast, faintly translucent fields of magical force surround the subject's hands, turning them into powerful elongated claws. While so transformed, the subject is considered armed and their unarmed attacks do not provoke attacks of opportunity from armed opponents. The subject's unarmed attacks do an additional +1d6 damage above and beyond their normal unarmed damage. Since the spirit claws are a force effect, they can affect ethereal beings as if they were solid.
While using spirit claws, the subject cannot cast spells requiring somatic, material, focus, or divine focus components, or hold anything in his hands. Any magic rings the subject wears (including protective ones) are rendered temporarily inactive, but return to normal when the spell ends.