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Chaos Beast

Chaos Beast CR 7

This thing is a horrid mass of barbed tentacles, glaring eyes, and gnashing teeth, twisting upon itself and reshaping into new forms.

XP 3,200
CN Medium outsider (chaotic, extraplanar)
Init +6; Senses darkvision 60 ft.; Perception +14


EAC 19 KAC 21
Fort +11, Ref +9, Will +6


Speed 20 ft.
Melee claw +18 (1d6+12 S plus corporeal instability)
Multiattack 4 claws +12 (1d6+12 S plus curse of corporeal instability)


Str +5, Dex +2, Con +4, Int +0, Wis +1, Cha -0
Skills Acrobatics +14, Athletics +19, Stealth +14
Other Abilities resistant to transformation


Environment any
Organization solitary, invasion (2–5)


Resistant to Transformation (Ex)

Transmutation spells and effects may force a chaos beast into a new shape, but at the start of its next turn, it immediately returns to its normal form as a free action.

A chaos beast’s form changes without any goal or purpose. Though at any particular second a chaos beast may appear to have dozens of limbs, whether claws, tentacles, stingers, and so on, the lightning-quick shifts of its body mean most of these are gone before it has a chance to use them, and its attacks are always treated as claws regardless of the creature’s appearance.

Curse of Corporeal Instability

Type curse; Save Will DC 15

Effect A creature cursed with an amorphous body becomes a spongy, shapeless mass. Unless the victim manages to control the effect (see below), its shape constantly melts, flows, writhes, and boils. An affected creature is unable to hold or use any item. Clothing, armor, helmets, and rings become useless. Large items worn or carried—armor, backpacks, even shirts—hamper more than help, reducing the victim’s Dexterity score by 4. Speed is reduced to 10 feet or one-quarter normal, whichever is less. The victim gains the amorphous quality, but 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). This is a curse effect.

A victim can temporarily regain its own shape by taking a standard action to attempt a DC 15 Will save (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. Spells or effects that change the victim’s shape do not remove the curse but hold the creature in a stable form (which might not be its own form, depending on the spell or effect) and prevent additional Wisdom drain for the duration of the spell. The victim takes 1 point of Wisdom drain from mental shock every round that it ends its turn in an amorphous shape—upon being drained to 1 Wisdom, further Wisdom drain ceases and the amorphous body effect is permanent until removed via magic (no further number of saving throws can cure the condition at this time).

Cure If the victim manages to retain a corporeal shape (through force of will or by magic) for 3 consecutive minutes, it removes the curse and returns to its original form.

Section 15: Copyright Notice

Alien Bestiary (Starfinder) © 2018, Legendary Games; Lead Designer: Jason Nelson. Authors: Anthony Adam, Kate Baker, John Bennet, Eytan Bernstein, Robert Brookes, Russ Brown, Duan Byrd, Jeff Dahl, Robyn Fields, Joel Flank, Matt Goodall, Robert J. Grady, Jim Groves, Steven T. Helt, Thurston Hillman, Tim Hitchcock, Nick Hite, Daniel Hunt, Mike Kimmel Marshall, Isabelle Lee, Jeff Lee, Lyz Liddell, Jason Nelson, Richard Pett, Tom Phillips, Alistair J. Rigg, Alex Riggs, Wendall Roy, Mike Shel, Neil Spicer, Todd Stewart, Russ Taylor, Rachel Ventura, Mike Welham, George Loki Williams, Scott Young.