When you cast this spell, you can assume the form of any Tiny, Small, Medium or Large creature of the monstrous humanoid type. If the form you assume has any of the following abilities, you gain the listed ability: climb 60 feet, fly 60 feet (good maneuverability), swim 60 feet, darkvision 60 feet, low-light vision, scent, freeze, grab, leap attack, mimicry, pounce, sound mimicry, speak with sharks, and trip. If the creature has the undersized weapons special quality, you gain that quality.

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

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

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

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