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Spirit Ally

(Oriental Adventures)

Conjuration (Calling) [see text]
Level: Shaman 6, Celestial 6,
Target: Up to 16 HD worth of summoned spirits, no two of which can be more than 30 ft. apart when they appear

As lesser spirit ally, except you may call a single spirit of up to 16 HD or a number of spirits of the same type whose HD total no more than 16.
The spirits, as a group, agree to perform one task for you and request one favor in return.