(Dinosaur) Pachycephalosaurus

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Originally Posted by moosekickedmysisterstoof of the Wizards Community forums.

On this Thread

This formidable reptile stands on two muscular hindlegs and balances with a powerful tail. Its short forelimbs end in tiny claws and its thick skull is adorned with bony studs and spikes.

These thick-skulled herbivores live in small herds. Males compete for mates by butting heads, but will not hesitate to charge other creatures if they venture too close.

A pacycephalosaurus has a body about 15 feet long and weighs around 950 pounds.

Large animal
HD 4d8+19 (37 hp)
Init +2
Speed 40 ft. (8 squares)
AC 16 (-1 size, +2 Dexterity, +5 natural), touch 11, flat-footed 14
Base Attack/Grapple +3/+12
Full Attack Headbutt +7 melee (1d8+7)
Attack Headbutt +7 melee (1d8+7)
Space/Reach 10ft/5ft
Sp. Attack Knockback
Sp. Qualities Low-lightvision, Scent
Saves Fort +8, Ref +6, Will +2
Abilities Strength 20, Dexterity 14, Constitution 19, Intelligence 2, Wisdom 12, Charisma 7
Skills Listen +8, Spot +8
Feats Alertness, Toughness
Environment Warm plains
Organization Solitary, pair, or herd (5-8)
CR 2
Alignment Always neutral
Advancement 5-8 HD (Large); 9-16 HD (Huge)
Level Adjustment --


Though herbivorous, pachycephalosaurs are somewhat short-tempered and easily annoyed by strange sights and smells. In a battle, pachycephalosaurs ban together to guard each other's flanks and concentrate their attacks.

Knockback (Ex): A headbutt attack from a pachycephalosaurus can literally drive back a foe. When a pachycephalosaurus makes a headbutt attack, it can immediately attempt a bull rush without moving into the foe's space or provoking an attack of opportunity. The pachycephalosaur makes a Strength check with a +13, which includes a +4 racial bonus. If the bullrush succeeds, the foe is driven back 5 feet and must make a DC 17 Reflex save or fall down. If being driven back would force the opponent into a barrier or into a square where it cannot stop (such as a wall or a square that already contains another creature), the foe falls down in its square instead. The Reflex save DC is Strength-based.

Training a Pachycephalosaurus

A character with the Handle Animal skill can train a pachycephalosaurus as noted in the Handle Animal skill description. A creature of up to Medium size can ride a pachycephalosaurus using an exotic saddle. A pachycephalosaurus trained for combat can fight while carrying a rider, but the rider cannot also attack unless he or she succeeds on a DC 10 Ride check.

Carrying Capacity: A light load for a pachycephalosaurus is up to 266 pounds; a medium load, 268-533 pounds; and a heavy load, 534-800 pounds. A pachycephalosaurus can drag 4,000 pounds.

Pachycephalosaurs as Animal Companions

lizardfolk who have the animal companion class feature can choose a pachycephalosaurus as an alternate animal companion when his effective level for the animal companion class feature is at least 4th level. The lizardfolk's effective druid level for determining the pachycephalosaur's abilities is reduced by three.

A nonlizardfolk also can have a pachycephalosaur companion, but his effective level for the animal companion class feature must be at least 7th, and the character's effective level for determining the dinosaur's abilities is reduced by six. For example, if a 7th-level human druid has a pachycephalosaurus companion, the dinosaur has only 1st-level companion abilities.

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