Animal Growth {Priest}

When this spell is cast, the caster causes all animals, up to a maximum of eight, within a 20-foot-square area to grow to twice their normal size. The effects of this growth are doubled Hit Dice (with resultant improvement in attack potential), doubled hit points (except hit points added to Hit Dice), and doubled damage in combat. Movement and AC are not affected. The spell lasts for two rounds for each level of the caster. The spell is particularly useful in conjunction with a Charm Person or Mammal spell.

Reverse: Shrink Animal

The reverse reduces animal size by one-half, and likewise reduces Hit Dice, hit points, attack damage, etc.

Reversible

Sphere: Animal
(Alteration)
Level: 5

Range: 80 yards
Components: V, S, M
Duration: 2 rounds/level
Casting Time: 8
Area of Effect: Up to S animals in a 20-foot-square area
Saving Throw: None

Material Components:
for this spell and its reverse; the priest's holy symbol and a scrap of food