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Behemoth, Thunder

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This enormous beast has rocky, armored plates on its body. Elaborate horns crown its horrific head.

Thunder Behemoth CR 18

XP 153,600
N Colossal magical beast (behemoth, earth)
Init -2; Senses blindsense 60 ft., darkvision 60 ft., tremorsense 60 ft.; Perception +27


AC 35, touch 0, flat-footed 35 (-2 Dex, +35 natural, -8 size)
hp 337 (25d10+200); regeneration 20
Fort +22, Ref +12, Will +12
Defensive Abilities unstoppable; DR 15/epic; Immune ability damage, acid, aging, bleed, disease, energy drain, fire, mind-affecting effects, negative levels, paralysis, permanent wounds, petrification, poison, polymorph; SR 29
Weaknesses vulnerable to miracles and wishes


Speed 30 ft., burrow 30 ft.
Melee bite +33 (4d6+16 plus grab), gore +33 (4d6+16), 2 stomps +28 (2d8+8 plus trip)
Ranged 4 rocks +15 (3d6+24 plus stun)
Space 30 ft.; Reach 20 ft.
Special Attacks fast swallow, mighty roar, rock spitting, ruinous, swallow whole (4d6+24 bludgeoning and 4d6 fire damage, AC 27, 33 hp), trample (2d8+24, DC 38)
Spell-Like Abilities (CL 20th; concentration +22)

3/dayearthquake (DC 20)


Str 43, Dex 6, Con 26, Int 3, Wis 14, Cha 15
Base Atk +25; CMB +49 (+53 grapple); CMD 57 (61 vs. trip)
Feats Awesome Blow, Cleave, Great Cleave, Greater Bull Rush, Greater Overrun, Greater Sunder, Improved Bull Rush, Improved Overrun, Improved Sunder, Iron Will, Lunge, Power Attack, Snatch
Skills* Perception +27, Survival +14, Swim +28; Racial Modifiers +10 Perception
Language Aklo (cannot speak)


Mighty Roar (Su)

Every 1d4 rounds as a standard action, a thunder behemoth can issue a mighty roar in a 60-foot cone that duplicates the effect of an empowered greater shout (Fortitude DC 30 for half damage). This is a sonic effect. The save DC is Constitution-based.

Rock Spitting (Ex)

A thunder behemoth can spit rocks from the essentially inexhaustible store in its gizzard. It can spit up to four rocks as a standard action, with a range increment of 60 feet. A creature that is critically hit by one of these rocks must make a DC 38 Fortitude save to resist being stunned for 1 round. The save DC is Strength-based.

Swallow Whole (Ex)

A thunder behemoth has five stomachs and can shunt a swallowed victim into any one of them (usually choosing an empty stomach).

Editor's Note
The Special Attacks and Spell-Like Abilities sections are presented in reverse order in the source. They have been restored to the correct order in our presentation. Additionally, there seems to be an error in the skills section, as the creature has higher skill modifiers than it skill points allow for. A suggested corrected line is below.

Skills Perception +27, Survival +14, Swim +20; Racial Modifiers +10 Perception