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Kaiju, Mogaru

This towering saurian lumbers on its hind legs, its twin tails thrashing and the spines on its back glowing with red energy.

Mogaru CR 28

Source Bestiary 4 pg. 170
XP 4,915,200
CN Colossal magical beast (kaiju, water)
Init +9; Senses darkvision 600 ft., low-light vision, see invisibility, sense kaiju; Perception +45


AC 47, touch 7, flat-footed 42 (+5 Dex, +40 natural, –8 size)
hp 697 (34d10+510); fast healing 30
Fort +34, Ref +24, Will +23
Defensive Abilities absorb energy, ferocity, recovery; DR 20/epic; Immune ability damage, ability drain, death effects, disease, energy drain, fire, and fear; Resist acid 30, cold 30, electricity 30, negative energy 30, sonic 30
Weaknesses susceptible to song


Speed 100 ft., swim 100 ft.
Melee bite +46 (8d6+20/19–20 plus grab), 2 claws +46 (4d8+20/19–20), 2 tail slaps +44 (6d6+10/19–20)
Ranged firebolts +31 touch (damage variable; see below)
Space 60 ft., Reach 60 ft.
Special Attacks breath weapon, ferocity, fast swallow, hurl foe, reflexive breath, swallow whole (10d6 bludgeoning and 10d6 fire damage, AC 30, 69 hp), trample (4d8+30, DC 47)


Str 50, Dex 21, Con 41, Int 3, Wis 30, Cha 26
Base Atk +34; CMB +62 (+66 bull rush, +66 grapple, +66 sunder); CMD 79 (81 vs. bull rush, 81 vs. sunder)
Feats Combat Reflexes, Critical Focus, Greater Bull Rush, Greater Sunder, Greater Vital Strike, Improved Bull Rush, Improved Critical (bite), Improved Critical (claw), Improved Initiative, Improved Iron Will, Improved Sunder, Improved Vital Strike, Iron Will, Multiattack, Power Attack, Staggering Critical, Vital Strike
Skills Perception +45, Swim +49; Racial Modifiers +16 Perception
Languages Aquan (can’t speak)
SQ massive


Environment warm forests or water
Organization solitary (unique)
Treasure incidental

Special Abilities

Absorb Energy (Ex) Mogaru absorbs energy attacks that damage him, including negative energy attacks. Damage blocked by one of his resistances or immunities instead heals him an amount equal to the damage dealt. He may absorb only one kind of energy in this manner in a round. The first type of energy that affects him in a round (whether or not it penetrates his immunities or resistance to actually damage him) sets the type of energy he absorbs for that round. Hit points gained in excess of his normal maximum are lost. Mogaru cannot gain healing from energy effects generated by himself.

Breath Weapon (Su) Once every 4 rounds, Mogaru can breathe out a beam of fiery red force. When Mogaru uses this attack, he can choose to focus the breath weapon into a single 1,200-foot-long line, or he can shorten the range and turn his head and body while breathing, effectively affecting a 600-foot-long cone. All creatures caught in this area of effect take 20d6 points of fire damage, 20d6 points of force damage, and are staggered for 1d6 rounds from the devastating energy (Reflex DC 42 halves the damage and prevents the staggered effect). A creature slain by this effect is disintegrated, whether the saving throw was successful or not. This breath weapon is particularly effective at blasting through cover—cover does not grant any bonuses on Reflex saves against Mogaru’s breath weapon. The save DC is Constitution-based.

Firebolts (Su) As a standard action on any round immediately following the use of his breath weapon, Mogaru can fire bolts of red energy from the glowing spines along his back. These bolts are ranged touch attacks with a range of 1,200 feet. When Mogaru uses this ability, he must choose between firing one firebolt, three firebolts, or six firebolts. If he fires one, it deals 20d6 points of damage on a hit. If he fires three bolts, each deals 8d6 points of damage on a hit. If he fires six bolts, each deals 5d6 points of damage on a hit. Half of the damage caused by any one firebolt is fire damage, the other half is force damage. Firebolts deal full damage against objects, and ignore the first 10 points of hardness possessed by an object.

Reflexive Breath (Ex) The first time in any round that Mogaru can make an attack of opportunity, he can choose to use a diminished version of his breath weapon instead of making a physical attack. This reflexive breath weapon attack only targets the creature that provoked the attack of opportunity, but otherwise causes the same damage and effects his breath weapon normally inflicts (Reflex DC 32 halves the damage and negates the staggered effect). Use of his breath weapon in this way does not affect the recharge rate of the regular breath weapon. The save DC is Constitution-based, and includes a –10 penalty to reflect the fact that the reflexive breath is a shorter (but no less intense) blast of energy than the kaiju’s typical breath weapon attack.

Sense Kaiju (Su) Mogaru can sense the location of the nearest active kaiju, as if using discern location, at will.

Susceptible to Song (Ex) Mogaru’s actions can be influenced by song, provided the kaiju notices the singing. If the kaiju is not currently engaged in battle, he automatically hears any song within 100 feet that is directed at him in an attempt to influence him, but when he is in combat, there’s only a cumulative 20% chance per round of sustained singing that he notices the song. In order to influence Mogaru, the singer must make a DC 35 Perform (sing) check (this check cannot be bolstered by the aid another action, and the singer cannot take 10 or 20 on the check). The result of this check sets the DC of the Will save Mogaru must make in order to not be influenced by the song. The singer can choose to influence Mogaru as if she had successfully cast suggestion on the kaiju (CL = the singer’s ranks in Perform [sing]). If Mogaru succeeds at a Will save (DC = the singer’s ranks in Perform [sing] + the singer’s Charisma modifier), the effects of the influence last for a maximum of 1d4 rounds; otherwise, the effects last as long as a suggestion spell would normally last. Mogaru cannot use his recovery ability to recover from song influence, and a single singer may influence Mogaru only once per day.


Mogaru, known as the Final King to kaiju scholars, or simply as King Mogaru, is one of the most destructive of his kind. Although not the most powerful kaiju (a sobering thought in and of itself ), Mogaru is certainly the most active of the known kaiju. Additionally, Mogaru seems to be as eager to rampage through the works of humanity as he is to attack and kill other kaiju, making him something of a mixed blessing to kaiju-threatened cities. While the prospect of an attack by Mogaru is the stuff of nightmares, the possibility of his intervention during a different kaiju attack is the stuff of hope, though the damage dealt to a city during its defense may be significant. Mogaru appears as a towering dinosaur with twin tails, spines that glow red as he uses his breath weapon, and two powerful clawed forearms.

King Mogaru dwells in the depths of a tropical jungle, sleeping silently at the bottom of an unusually deep lake until roused. Legends hold that Mogaru was born of the world itself, either formed from the spirits of countless plants and animals resulting from ages of hunting and predation by humanoids for food or sport, or formed from the souls of the countless slain in an ancient apocalypse or war that devastated one of the first of the world’s empires. Regardless of the actual cause, the birth of Mogaru in these legends seems to be the same—soon after another kaiju, Lord Varklops, emerged from an erupting volcano, Mogaru rose to oppose the Thrice-Headed Fiend in a vast battle that nearly slew Varklops while devastating an entire nation in the process. Mogaru is also rumored to have slain no fewer than a dozen other kaiju, including Agmazar the Star Titan, now believed to be the only undead kaiju in existence.

Of particular note is the curious fact that Mogaru exhibits a particularly unique interest in song. Legends of skilled singers being able to save their cities with a single mournful paean to the kaiju, or of vengeful bards using their craft to waken the monster from his lair to send him on a rampage are common along coastal regions with a history of kaiju attacks, and in such regions renowned singers are well respected for this ability to inf luence one of the world’s most destructive creatures. Kaiju scholars suspect that song manages to penetrate Mogaru’s memories of some primeval event, but the reasons for the kaiju’s reaction to the song are its own.

Mogaru stands 140 feet high and weighs 20,000 tons, and is nearly 300 feet long from nose to tail.

Creatures in "Kaiju" Category



Source Bestiary 4 pg. 165
In the furthest reaches of the globe, where civilization itself is a legend and mapmakers can only make guesses about lands and denizens, immense creatures that are worshiped as gods walk the world. Capable of devastating entire cities in a single day of ruin and unleashing powerful supernatural attacks, these fabled, so-called “gods” are anything but. These massive monsters are known as kaiju, and the tales told of their genesis are as varied as the strange forms and capabilities of the monsters themselves.

A kaiju is a monster of tremendous size—far larger than almost any other creature. Each kaiju is unique, but they all share a few traits in common (see the kaiju subtype on page 307). Kaiju can be of different types, but most are magical beasts. Although kaiju are semiintelligent and can generally understand a single language, they cannot speak. Some legends tell of certain gifted or unique people being able to call kaiju from vast distances to aid them in times of distress. This type of bond with a kaiju isn’t well understood, but rarely comes to those who already possess great power. Rather, it is the helpless, the compassionate, and the meek who can bring forth kaiju.

Kaiju generally dwell in distant, remote wildernesses, often in unusually close proximity to one another. There they battle, but never quite seem to finish their constant conf licts before one of the beasts staggers away to recover from the clash, defeated only for the moment. Visitors to one of the remote lands where kaiju frequently clash can often explore without too much fear, as long as they take care not to be too visible or destructive as they explore. Unless a kaiju is being attacked or is particularly aggressive (such as when it’s defending a territory), it’s likely to ignore Medium or smaller creatures that wander in its vicinity, just as a human might ignore an ant crawling nearby.

A kaiju’s supernatural metabolism allows it to draw energy and nutrition from sources other than food— each kaiju “feeds” in a different way on a different form of energy, but when denied its energy source it does not starve. Instead, the immense monster simply falls into torpor, hibernating until a new source of energy awakens it once again. In some cases, a kaiju can lie dormant for ages—so long that civilizations have time to unknowingly encroach upon lands the monster claimed long ago as its territory. As long as the new civilizations take care to not accidentally waken the monster, they can coexist with the slumbering kaiju in relative peace for many, many years. Yet eventually, some event will inevitably waken the slumbering giant and call it forth into a rampage.

Certain events can drive a kaiju into a destructive frenzy. Powerful storms or natural disasters, rare and dangerous rituals designed to call out to them, the use of incredibly powerful magical weapons, wars, and the approach of other kaiju can all send one of these creatures on a rampage of wrath. When a kaiju begins such a rampage, it leaves its remote wilderness home and travels far afield, often for hundreds or even thousands of miles through unexplored wilds or across entire oceans until it reaches the source of the irritation.

Upon arriving in such a location, the kaiju seeks out the source of whatever enraged it, or if no obvious source is apparent, it simply tramples a path of destruction through whatever city or fortress or locale happens to be in its way. Once a kaiju’s rampage begins, it can last for weeks, with the monster periodically retreating between attacks into wildernesses or oceans near the source of the disturbance to rest or recuperate.

Societies that are frequently plagued by kaiju attacks often build special magical siege engines designed to drive off the monster, or even seek to recruit the aid of other kaiju to battle the intruder. Unfortunately, the collateral damage caused by multiple kaiju is significant, and fighting fire with fire in this way may leave behind nothing but rubble.

All kaiju are Colossal, and have a space and reach of no less than 50 feet each. A bipedal kaiju typically stands between 100 and 200 feet in height; quadrupedal kaiju are half as tall. A kaiju’s size makes a battle against one challenging to run. At the scale needed to track tactical movement for Medium creatures, a kaiju takes up a massive amount of space. When designing an encounter with a kaiju, plan ahead and prepare a larger area so that you can track the kaiju’s movement effectively.

Known Kaiju

The kaiju presented on the following pages are but three of the legendary creatures said to dwell in remote places in the world. Here is a list of others, including the places they’re rumored to dwell.

Agmazar, the Star Titan of the vast jungle
Cimurlian, the Great Bear of the frozen north
Ebeshra, the Winged Razor of the furthest clouds
Igroon, the Dragon Eater of the lost island
Mantraska, the World Talons of the rain forest
Shbloon, the Vortex Maw of the ocean deep
Lord Varklops, the Thrice-Headed Fiend of the dormant volcano
Queen Vorgozen, the Shapeless Feeder of the vast swamp
Yarthoon, the Moon Grub of the darkest nights
Yorak, the Horned Thunder of the great mountains
Zimivra, the Endless Coils of the trackless desert