Advance Animal

This spell must be cast at a holy site or natural glade, you grant an animal touched with additional strength, granting it additional hit dice, including all the benefits associated with the addition, such as BAB, saving throw bonuses, skill points and feats. You have no special empathy or connection with a creature you advance. You cannot improve an animal that is serving as an animal companion or other such bonded companion, and such a creature cannot become an animal companion or other such bonded companion.