When you cast this spell, you can assume the form of any Diminutive, Tiny, Small, Medium, Large or Huge creature of the animal type. This spell also allows you to take on the form of a Tiny, Small, Medium or Large creature of the magical beast type. If the form you assume has any of the following abilities, you gain the listed ability: burrow 60 feet, climb 90 feet, fly 120 feet (good maneuverability), swim 120 feet, blindsense 60 feet, darkvision 90 feet, low-light vision, scent, tremorsense 60 feet, breath weapon, constrict, ferocity, grab, jet, poison, pounce, rake, rend, roar, spikes, trample, trip, and web. If the creature has immunity or resistance to any elements, you gain resistance 20 to those elements. If the creature has vulnerability to an element, you gain that vulnerability.

Diminutive animal: If the form you take is that of a Diminutive animal, you gain a +6 size bonus to your Dexterity, a –4 penalty to your Strength, and a +1 natural armor bonus.

Tiny animal: If the form you take is that of a Tiny animal, you gain a +4 size bonus to your Dexterity, a –2 penalty to your Strength, and a +1 natural armor bonus.

Small animal: If the form you take is that of a Small animal, you gain a +2 size bonus to your Dexterity and a +1 natural armor bonus.

Medium animal: If the form you take is that of a Medium animal, you gain a +2 size bonus to your Strength and a +2 natural armor bonus.

Large animal: If the form you take is that of a Large animal, you gain a +4 size bonus to your Strength, a –2 penalty to your Dexterity, and a +4 natural armor bonus.

Huge animal: If the form you take is that of a Huge animal, you gain a +6 size bonus to your Strength, a –4 penalty to your Dexterity, and a +6 natural armor bonus.

Tiny magical beast: If the form you take is that of a Tiny magical beast, you gain a –2 penalty to your Strength, a +8 size bonus to your Dexterity, and a +3 natural armor bonus.

Small magical beast: If the form you take is that of a Small magical beast, you gain a +4 size bonus to your Dexterity, and a +2 natural armor bonus.

Medium magical beast: If the form you take is that of a Medium magical beast, you gain a +4 size bonus to your Strength, and a +4 natural armor bonus.

Large magical beast: If the form you take is that of a Large magical beast, you gain a +6 size bonus to your Strength, a –2 penalty on your Dexterity, a +2 size bonus to your Constitution, and a +6 natural armor bonus.