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(Dinosaur) Acrocanthosaurus

By Mariolanzas - Own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=76499667
By Mariolanzas – Own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=76499667

This monstrous brute has a massive head and powerful jaws that look as if they could snap a tree in two. Its forelimbs are small but strong and are equipped with razor sharp claws that could tear a man to ribbons.

Originally Posted by moosekickedmysisterstoof of the Wizards Community forums. 
On this Thread

Acrocanthosaurus is a ferocious flesh-eating dinosaur that inhabits warm plains and grasslands. Despite its massive size, it is a capable runner and often pursues prey with shocking quickness. Though not as powerful as tyrannosaurus, it is every bit as dangerous and cunning.

An acrocanthosaurus is roughly 30 feet long and weighs around 5,000 pounds.

Acrocanthosaurus
Huge animal
HD16d8+118 (190 hp)
Init+5
Speed40 ft. (8 squares)
AC14 (-2 size, +1 Dexterity, +5 natural), touch 9, flat-footed 13
Base Attack/Grapple+12/+28
Full AttackBite +18 melee (2d8+12)
AttackBite +18 melee (2d8+12)
Space/Reach15ft/10ft
Sp. AttacksImproved grab, rake 1d4+4, swallow whole
Sp. QualitiesLow-lightvision, Scent
SavesFort +17, Ref +11, Will +6
AbilitiesStrength 26, Dexterity 13, Constitution 24, Intelligence 2, Wisdom 12, Charisma 10
SkillsHide -3, Listen +12, Spot +14, Survival +5
FeatsAlertnessEnduranceImproved InitiativeRunToughness (x2)
EnvironmentWarm plains
OrganizationSolitary or pair
CR8
TreasureNone
AlignmentAlways neutral
Advancement17-32 HD (Huge); 33-48 HD (Gargantuan)
Level Adjustment

Combat:

An acrocanthosaurus prefers to attack from ambush. If it is spotted before it can get the element of surprise, it will swiftly run its prey down. Once it has seized its prey in its jaws, it rips it apart with its clawed forelimbs.

Improved Grab (Ex): To use this ability, an acrocanthosaurus must hit an opponent with its bite attack. It can then attempt to start a grapple as a free action without provoking an attack of opportunity. If it wins the grapple check, it establishes a hold and can try to swallow the foe in the following round or it can make two claw attacks.

Rake (Ex): 2 claws, attack bonus +18 melee, 1d4+4.

Swallow Whole (Ex): An acrocanthosaurus can try to swallow a grabbed opponent of up to two size smaller by making a successful grapple check.

The swallowed creature takes 2d8+6 points of bludgeoning damage and 8 points of acid damage per round from the dinosaur’s gizzard. A swallowed creature can cut its way out by using a light slashing or piercing weapon to deal 25 points of damage to the gizzard (AC 12). Once the creature exits, muscular action closes the hole; another swallowed opponent must cuts its own way out.

A Huge acrocanthosaur’s gizzard can hold 2 Medium, 8 Small, 32 Tiny, or 128 Diminutive or smaller opponents.

Skills: An acrocanthosaurus has a +2 racial bonus on Listen and Spot checks.

Acrocanthosaurs as Animal Companions

druid of at least 16th level can select an acrocanthosaurus as an alternate animal companion.

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