When you cast this spell, you can assume the form of any Diminutive, Tiny, Small, Medium, Large or Huge Creature of the monstrous Humanoid type. If the form you assume has any of the following abilities, you gain the listed ability: Burrow 30 feet, climb 90 feet, fly 90 feet (good maneuverability), swim 90 feet, all-around Vision, Blindsense 30 feet, Darkvision 60 feet, low-light Vision, scent, blood frenzy, cold vigor, Constrict, Ferocity, Freeze, grab, horrific appearance, jet, leap attack, mimicry, natural cunning, overwhelming, Poison, Pounce, rake, Sound Mimicry, speak with sharks, Trample, trip, and web. If the Creature has the undersized Weapons special quality, you gain that quality.

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

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.

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