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Alternate Versions

Size

Hero Forge: Varies (XL)

Lore: Medium

Suggested: Small to Gargantuan

Abilities

- Constantly changing physical form

- Attacks infect with corporeal instability, madness, potential transformation into chaos beast

Stat Block

5th Edition:

- 5esrd.com (homebrew a bit lackluster)

3rd Edition:

Realmshelps.net

2nd Edition:

- Planescape: Planes of Chaos Monstrous Supplement (1994)

- Mojobob's website

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Home Plane

Limbo

Other Monikers

None

Appearance

It is the culmination of all possibilities. Its form is the form that it was not in its yesterdays.

Sources

- Forgotten Realms Wiki

- Monster Manual v3.5 (2003)

- Planescape: Planes of Chaos Monstrous Supplement (1994)

- Mojobob's website

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Description

(From Planescape: Planes of Chaos Monstrous Supplement - 1994):

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When seen the chaos beast is...

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...a towering horror of hooks and fangs, all pulpy flesh and exposed veins. It shambles forward in lurching steps, tottering unsteadily on its three legs. Its face is a shivered mirror, eyes bent and tortured, nose hooked thrice on itself. It bellows in rage, voice ringing with its own pain;

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...a slithering mass of ropy tentacles, each tipped in vermillion. Ten eyes swim in a viscous sac at the top of the body, which in turn is surrounded by a ring of smacking mouths. Scores of vestigial wings flitter helplessly, unable to lift its filmy mass from the plane;

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...smoothly noble, striding gracefully through the primordial soup on its six legs, maned head raised high, three eyes flashing brilliantly over the passersby. Its arms are delicate and its skin bashes with the color of the sun;

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...a piteous, mewling thing, scarcely larger than a man. Its body hangs on splintered bone like fallen dough. It can barely shuffle forward on stumplike feet, wretchedly grasping the air ahead with crablike hands. Empty eyesockets pit its balding head;

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...the thundering charge of a mighty creature, all muscle and fury. Claws lash and glint in the frenzy of its attack. The great alligatorlike jaw snaps menacingly as it rushes forward;

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...swiftly silent and deadly, its dark fur barely visible through the rippling sea of Limbo. Broad wings carry it toward its prey, the great talons dropping beneath its slender body. Two eyes glisten with cold hate as it shrills the attack upon its prey;

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...a sprawled tangle, a warmly steaming sac of gut that rolls and tumbles over the landscape like flaccid sausages tumbling down a stair. Its folds loop and drape, slipping their warm wetness around all in its way. Blind and dumb it cascades through the soup;

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...a carcass flayed from the inside until all that’s left is the puffed-up shell, swollen with gases trapped inside the sealed husk. It bobs on the swells of Limbo, tangling the trailing ends of its own body with all who venture too near;

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...the brilliant moth, its powdered wings etched with the stained-glass colors of sanctuaries. Its body is plump with feasting. The compound eyes sparkle with a thousand jewels as it scans the land for prey;

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...the person to the left.

 

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When encountered, the chaos beast may encompass any or all of these forms. It is the culmination of all possibilities. Its form is the form that it was not in its yesterdays.

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Combat: How many different attacks can a creature capable of any form have? In this case, only two.

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For all its fearsome appearances, whether it has claws, fangs, pincers, tentacles, or spines, the chaos beast does little physical harm with its horrid limbs. Regardless of form, the creature seems unable to manage more than two attacks per round. Its continual transmutations may prevent the creature from acquiring the coordination needed to do more than this — or it may just be too dim.

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The physical damage caused by these attacks is slight (only 1d3 points of harm), again regardless of form. Those struck by the beast describe blows from even the most fearsome-looking claws as “limp and yielding, like a half-filled waterskin”. The buffet stings and bruises but is not an attack doughty adventures fear.

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But bloods fear the chaos beast, because they know what it can really do. The monster has a far more subtle and delicious terror in its arsenal. A touch of the creature’s body is sufficient to trigger a horrible magical transformation in any victim — corporeal instability, a dread and uncontrollable shifting of form and substance.

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This threat of instability only comes into effect when the exposed flesh of chaos beast and victim meet. Thus, a hero can use his sword to slice a tentacle from the beast and have little risk of being affected, but should he punch the creature with his fist, he risks dire consequences. When a character’s flesh contacts that of a chaos beast, the character must make a saving throw vs. death magic to avoid corporeal instability. If the character is protected by armor or clothing, the saving throw must still be made, although he or she gains +4 to the die roll. Evcn attacking with a melee weapon is a slight risk, though in this case the character gains a +6 to the saving throw. Clearly, the best method for dealing with a chaos beast is from a distance.

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Corporeal instability is a terrifying magical effect. Those affected are suddenly stricken by a soft sponginess as their physical bodies suddenly lose all sense of form. Unless controlled through act of will, as if his own body were part of Limbo, the character’s shape melts, flows, writhes, and boils.

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The consequences are grim. Suddenly the character is unable to hold any item; his hands have no grip. Clothing, armor, rings, helmets, backpacks are all useless as his body bulges and ripples. Large constricting items — armor, backpacks, even shirts — hamper more than help, reducing the character’s Dexterity by 4 points. As feet and legs go soft or become impossible shapes, movement is reduced to 3. Shearing pain courses along the nerves, so strong that the character cannot act coherently. No spells can be cast, magical items are unusable, and any attacks are made blindly, unable to distinguish friend from foe (-4 penalty to THAC0).

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Although corporeal instability causes no physical damage, the psychic harm is tremendous. Every round until the victim gains control over his body, he must save vs. death magic. Those who succeed have the mental strength to resist the horror; those who fail lose 1 point of Wisdom. Those who lose all Wisdom become mindless, bodiless horrors of the plane.

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Even if the character manages to retain his form once stricken by corporal instability, he (or others) must be forever watchful. His own body has betrayed him. If not maintained in its current form (like any other part of Limbo) the character immediately begins to change. Note that another can provide the needed stability, allowing the afflicted character to sleep.

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Corporeal instability is not a normal disease and so is hard to cure. A compulsive order, shapechange, or stoneskin spell does not cure the disease, but fixes the character in his native form (without other effects) for the duration of the spell.

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A heal, limited wish, or stabilize spell cures an afflicted character and restores lost Wisdom. The condition is immune to cure disease.

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Habitat/Society: Chaos beasts are strictly solitary creatures, which can only be a blessing for others. They change constantly and from day to day, so postulations about sex, family habits, or other considerations are pointless. They do not seem to guard a particular territory, moving throughout the plane of Limbo as randomly as the wind. They stay clear of stabilized lands, especially those held by strong anarchs. Most chaos beasts are found in the wild churn between the islands of order.

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A currently popular theory asserts that those stricken by the chaos beasts eventually become like creatures. Supposedly, those stricken mad by the creatures wander the plane until their own madness and horror reaches cyclopean heights within themselves. It is only then that the victim becomes the beast, able to pass on instability with a single touch.

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Ecology: The flesh of the chaos beast loses all power within moments of the creature’s death (or separation from the greater body). While no one has yet found a use for this protoplasm, there are wizards seeking to use it as a powerful extract for shape change potions.

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(From Planescape: Planes of Chaos Monstrous Supplement - 1994):

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Foul and terrible, the creature before you has no set form. It constantly melts and reforms, apparently drawing each shape from every nightmare that has ever plagued humankind. It chaotically shifts through a dozen monstrous forms before shaping itself into a bulbous thing with ten eyes swimming in a viscous sac at the top of a body that’s surrounded by a ring of smacking mouths.

 

The horrific creatures known as chaos beasts have mutable, ever-changing forms. Their deadly touch can make opponents melt into formless goo.

 

There’s no telling what a chaos beast will look like. One moment it might be a towering horror of hooks and fangs, all pulpy flesh and exposed veins, and the next a slithering mass of ropy, vermilion-tipped tentacles. Then it become a mighty creature, all muscle and fury A chaos beast’s dimensions vary, but it always weighs about 200 pounds.

 

Chaos beasts do not speak.

 

Combat: How many different attacks can a creature capable of any form have? In this case, only two.

 

For all its fearsome appearances, whether it has claws, fangs, pincers, tentacles, or spines, a chaos beast does little physical harm. Regardless of form, the creature seems unable to manage more than two attacks per round. Its continual transmutations prevent the coordination needed to do more.

 

A chaos beast’s claw attacks, as well as any weapons it wields, are treated as chaotic-aligned for the purpose of overcoming damage reduction.

 

Corporeal Instability (Su): A blow from a chaos beast against a living creature can cause a terrible transformation. The creature must succeed on a DC 15 Fortitude save or become a spongy, amorphous mass. Unless the victim manages to control the effect (see below), its shape melts, flows, writhes, and boils. The save DC is Constitution-based.

 

An affected creature is unable to hold or use any item. Clothing, armor, rings, and helmets become useless. Large items worn or carried—armor, backpacks, even shirts—hamper more than help, reducing the victim’s Dexterity score by 4. Soft or misshapen feet and legs reduce speed to 10 feet or one-quarter normal, whichever is less. Searing pain courses along the nerves, so strong that the victim cannot act coherently. The victim cannot cast spells or use magic items, and it attacks blindly, unable to distinguish friend from foe (–4 penalty on attack rolls and a 50% miss chance, regardless of the attack roll).

 

Each round the victim spends in an amorphous state causes 1 point of Wisdom drain from mental shock. If the victim’s Wisdom score falls to 0, it becomes a chaos beast. A victim can regain its own shape by taking a standard action to attempt a DC 15 Charisma check (this check DC does not vary for a chaos beast with different Hit Dice or ability scores). A success reestablishes the creature’s normal form for 1 minute. On a failure, the victim can still repeat this check each round until successful.

 

Corporeal instability is not a disease or a curse and so is hard to remove. A shapechange or stoneskin spell does not cure an afflicted creature but fixes its form for the duration of the spell. A restoration, heal, or greater restoration spell removes the affliction (a separate restoration is necessary to restore any drained points of Wisdom).

 

Immunity to Transformation (Ex): No mortal magic can permanently affect or fix a chaos beast’s form. Effects such as polymorphing or petrification force the creature into a new shape, but at the start of its next turn it immediately returns to its mutable form as a free action.

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