Monstrous Physique — Devil Dinosaur

Every little girl needs a best friend. Lunella Lafayette just happens to have a gigantic, mutated dinosaur for hers. As mentioned last week in Alex’s Iconic Design, this is a team up! I have the second half of this powerful pair in this Monstrous Physique. Let’s dig in!


This enormous, terrible lizard is covered in deep crimson scales. Its eyes burn with passion, engulfed in bright flames
Devil Dinosaur               CR 15
XP 51,200
N Gargantuan animal
Init +5; Senses low-light vision, scent; Perception +35
AC 27, touch 7 (17 vs ranged), flat-footed 27 (+1 Dex, +20 natural, –4 size)
hp 231 (22d8+132)
Fort +19, Ref +14, Will +9
Defensive Abilities impenetrable hide; DR 10/—; Immune fire
Speed 50 ft.
Melee bite +26 (4d6+28/19–20 plus grab)
Space 20 ft.; Reach 20 ft.
Special Attacks brutal charge, swallow whole (10d6 fire, AC 20, 23 hp), tail sweep
Str 38, Dex 13, Con 23, Int 8, Wis 15, Cha 10
Base Atk +16; CMB +34 (+36 grapple); CMD 45
Feats Awesome Blow, Bleeding Critical, Critical Focus, Diehard, Endurance, Improved Bull Rush, Improved Critical (bite), Improved Initiative, Iron Will, Power Attack, Run, Throw AnythingB
Skills Perception +35; Racial Modifiers +8 Perception
Languages Common (can’t speak)
SQ fire sense, powerful bite, rampager
Environment warm forests and plains
Organization solitary
Treasure none
Brutal Charge (Ex) Devil Dinosaur can stampede, thrashing about as he moves. When he charges, he can either attack with his bite or a slam. A successful slam attack deals 4d6+21 damage and knocks his target away 10 feet, as if struck by an Awesome Blow. At any point during this movement, Devil Dinosaur can use his tail sweep attack. This tail sweep does not interrupt his charge.
Fire Sense (Ex) Devil Dinosaur can smell fire and fire effects as if they were an odor with his scent ability.
Impenetrable Hide (Ex) Devil Dinosaur adds half of his natural armor bonus to his AC against ranged touch attacks.
Powerful Bite (Ex) Devil Dinosaur applies twice his Strength modifier to bite damage.
Rampager (Ex) Devil Dinosaur ignores the first 10 points of hardness when attacking objects. He applies twice his Strength modifier when attempting to break an object.
Tail Sweep (Ex) Devil Dinosaur can sweep with his tail as a standard action. The sweep affects a half-circle with a radius of 30 feet, extending from an intersection on the edge of his space in any direction. Creatures within the swept area are affected if they are four or more size categories smaller than Devil Dinosaur. A tail sweep automatically deals 4d6+21 damage. A successful DC 27 Reflex save halves this damage. The save DC is Constitution-based.

Exposed to fire, the young Devil Dinosaur was nearly burned to death on his home world. By chance, this fire caused a mutation in the young reptile, turning his skin red and granting him improved strength and intelligence. A strange set of circumstances led to Devil Dinosaur’s appearance in New York City. After a few run ins with Lunella Lafayette, the two partnered up to become the fantastic duo known as Moon Girl and Dinosaur Girl!

In Your Game

Rampaging… schoolgirl?
Moon Girl and Devil Dinosaur have swapped minds and now Lunella is out of control. It is up to the PCs to find a way to communicate with the dinosaur to learn what has happened and also to stop the girl genius from wreaking havoc with her powerful gadgets.

Rise of the Killer-Folk
In a prehistoric setting, a rival tribe has captured the Devil. This group is now nigh unstoppable with the fearsome lizard on their side. It is up to the PCs to find a way to either release the beast or put a stop to it with their primitive technology.

The Zombie Devil
A portal from an alternate universe opens in the PCs world. From within steps forth a terrible monstrosity—zombie Devil Dinosaur! When he was exposed to fire, Devil Dinosaur perished but rose again as an undead version of his standard counterpart. Not only is his death only possible in his home world, the portal may allow other zombies to arrive!

Monstrous Origins

Well, there’s not really too much to Devil Dinosaur in terms of extraordinary abilities. Alex already covered the mind swap in his entry. The one thing I could really play up is just how strong and destructive DD is. Rather than just take a tyrannosaurus and make it red, I decided to make it stronger and scarier. I stole the tail sweep ability from the true dragons and let him do it while charging. I also decided to beef up his defenses a little. In the comics, bullets are seemingly useless against Devil Dinosaur’s hide, so I improved his touch AC to combat firearms. Finally, with the ability to really take it to those inanimate objects like buildings and vehicles, we have a dinosaur fit to be called Devil.

That’s it for this week! Please let us know if you liked our little cross-over event. I had a fun time with it! If you end up riding the Devil Dinosaur into your game or you have any request for a future Monstrous Physique, please drop me a line at

Luis Loza

Luis Loza is a developer at Paizo, working on the Pathfinder Lost Omens line and formerly on Campaign Setting and Player Companion lines. He's done freelance for Paizo Inc, Legendary Games, Rogue Genius Games, and more third-party publishers. His hobbies include gaming both tabletop and video, making jokes, obsessing over time travel, taking naps with Nova his cat, and walks with his wife. He is eternally plagued with a hunger for tacos. Consider checking his material on his Patreon at

Know Direction Pathfinder Podcast