This spell functions as beast shape IV except you can assume the form of only a magical beast of a size between Diminutive and Huge. If the form you assume has any of the following abilities, you gain those abilities: burrow speed 60 feet, climb speed 90 feet, fly speed 120 feet (good maneuverability), swim speed 120 feet, blindsense 60 feet, blindsight 30 feet, darkvision 90 feet, low-light vision, scent, see in darkness, tremorsense 60 feet, blood drain, blood frenzy, breath weapon (if damage, up to 12d6 points), constrict, fast healing 5, ferocity, grab, hold breath, jet, no breath, poison, pounce, powerful charge, pull, rake, rend, roar, spikes, trample, trip, and web. If the creature has immunity to poison, you gain a +8 resistance bonus on saves against poison.
Huge Magical Beast: If you assume this form, you gain a +8 size bonus to your Strength score, take a –4 penalty on your Dexterity score, a +2 size bonus to your Constitution score, and gain a +7 natural armor bonus.
Pathfinder Roleplaying Game Ultimate Wilderness © 2017, Paizo Inc.; Authors: Alexander Augunas, John Bennett, Robert Brookes, John Compton, Dan Dillon, Steven T. Helt, Thurston Hillman, Eric Hindley, Mikko Kallio, Jason Keeley, Isabelle Lee, Jason Nelson, Stephen Radney-MacFarland, Alex Riggs, David N. Ross, David Schwartz, Mark Seifter, Jeffery Swank, and Linda Zayas-Palmer.