Xenotheric (3.5e Subtype)

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Author: Sulacu (talk)
Date Created: September 8, 2009
Status: Completed
Editing: Clarity edits only please
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This subtype pertains to the Xenotheric family of outsiders, which hail from planes associated with aberrant lifeforms. Many xenotheric species have suffered varied amounts of exposure to the transmorphic and undefined currents of the Far Realm and other such places of conception. Most xenotherics were transmogrified by their unnatural evolution, having attained a higher form of existence where thought and locution occurs solely on the cerebral state, and yet others have been horribly altered by their experiences, flensed by planar chaos until their sapience was stripped away. However, despite all of these vastly different creatures having equally varied origins, the forces they were exposed to are akin, and therefore many of their physical and mental traits overlap. Since no home or origin between them is shared, xenotherics do not belong to any single plane or realm, and simply naturally gravitate to any environments that suit their requirements.

Various superphyla of xenotheric outsiders have strong links to certain types of aberrations. Aberrations that gain the xenotheric subtype through evolution become outsiders with the Augmented Aberration subtype.


The traits listed here override the base Outsider traits wherever applicable.

  • The Xenotheric subtype overrides and replaces the Extraplanar and/or Native subtypes.
  • Xenotherics with an Intelligence score of 3 or higher have telepathy out to 100 ft.
  • May take feats with the Xenotheric tag.
  • Bio-Energy (Ex): Xenotheric metabolism is capable of producing large amounts of biological energy. This energy can then be used to power special attacks and abilities. Some of these abilities are exclusive to specific Xenotheric species, whereas others can be accessed through various Xenotheric feats. See bio-energy below.
  • Immunity to poison, polymorphing, petrification and form-altering effects. They can still be affected by polymorphing and form-altering effects created by themselves.
  • Resistance to acid 10 and electricity 10.
  • Xenotheric outsiders eat, but do not sleep. Certain xenotherics do not need to breathe; defer to the creature's statistics for information on breathing.


Certain lifeforms have the capacity to generate large amounts of metabolic energy that can be used for many different purposes. Such a creature's bio-energy pool can contain a maximum amount of charges equal to 3 plus the creature's Constitution modifier (minimum 1). These charges may be expended to facilitate certain special powers. Some of these powers are exclusive to specific species of creatures, whereas others can be accessed through various abilities gained from feats or class features.

Expended bio-energy charges regenerate at a rate of 1 charge per minute. Drained bio-energy comes back at a rate of 1 point per hour of rest.

Bio-Energy Drain: Certain more exhaustive processes cause bio-energy drain. Charges lost through bio-energy drain do not regenerate within 1 minute and are effectively lost; your bio-energy pool is treated as having 1 charge less for every charge drained. A creature with bio-energy drain equal to the size of its bio-energy pool cannot use its bio-energy for any purpose.

Bio-energy drain can be restored through one or more hours of uninterrupted rest, recovering one point of bio-energy drain per hour. Creatures that do not need sleep (like creatures with the Xenotheric subtype) still need to rest, where rest is defined as a time during which no strenuous activities are performed (actions that induce fatigue or exhaustion, or otherwise elicit Fortitude saves against these effects even if the creature is not required to attempt them).

Creatures with the Xenotheric Subtype[edit]

The following creatures have the xenotheric subtype:

Creature Entry CR Type Subtypes Size Description
Battlehead 8 Aberration Xenotheric Medium An ambush predator capable of making temporary dead-magic zones. Attacks with pincers and a sharp beak.
Battlehead, Warhead 13 Aberration Xenotheric Large An ambush predator capable of making temporary dead-magic zones. Attacks with pincers and a sharp beak.
Blattodea 3, 11 Vermin, Aberration Xenotheric, Augmented Vermin Medium, Huge
Deathclaw 5 Animal Xenotheric Medium
Elder Thing 10 Outsider Aquatic, Xenotheric Large
Fast Headcrab 2 Outsider Xenotheric Tiny
Flying Polyp 15 Outsider Air, Xenotheric Huge
Gastropotamos 4 Animal Xenotheric Large
Gokiburi 1/2, 3, 6 Aberration Xenotheric Medium
Headcrab 1/2 Outsider Xenotheric Tiny A headcrab is a predatorial Xenotheric species, whose natural hatching grounds lie within the vast plateaus of Xen.
Hedoro 3 Ooze Shapechanger, Xenotheric Medium
Kavka 1/3 Animal Xenotheric Tiny Kavkas are small avians from the planet Gokia that feed on bugs and occasionally scavenge on other meats.
Lunar Tarrasque 27 Magical Beast Xenotheric Colossal
Malcurion Dragon 8, 12, 15, 17, 21, 24, 27, 30, 33, 36, 39, 42 Dragon Xenotheric Medium, Large, Huge, Gargantuan
Mizmazer 7 Outsider Extraplanar, Psionic, Xenotheric Medium
Mkodos 4 Ooze Xenotheric Medium
Nimbus Drifter 9 Elemental Air, Xenotheric Gargantuan
Phynasm, Hungering Horror 33 Outsider Xenotheric, Eldritch Macrofine
Poison Headcrab 4 Outsider Xenotheric Tiny
Primeval Dragons 5, 8, 12, 15, 18, 22, 25, 27, 30, 33, 36, 38, 20, 23, 26, 29, 32, 35, 7, 10, 13, 16, 19, 28, 31, 34, 37, 39, 40, 9, 11, 14, 17, 21, 24, 41, 42 Dragon Earth, Fire, Air, Cold, Evil, Psionic, Good, Water, Xenotheric Large, Huge, Gargantuan, Colossal, Medium
Scoropendra 14 Outsider Augmented Aberration, Xenotheric Medium, Large
Seppia SOLO Gear 2 Construct Gear, Xenotheric Medium
Seppia, Suitless 4 Magical Beast Xenotheric Tiny
Solarian 8 Outsider Psionic, Xenotheric Medium
Thundersquid 7 Magical Beast Aquatic, Xenotheric Medium
Vortigaunt 2 Outsider Xenotheric Medium
Warp Dragon 7, 8, 10, 13, 16, 18, 21, 23, 24, 26, 27, 29 Dragon Xenotheric Medium, Large, Huge, Gargantuan, Colossal
Ya-te-veo 8 Plant Xenotheric Large

Races with the Xenotheric Subtype[edit]

Creature Entry CR Type and Subtypes Size
Brachyura Monstrous Humanoid [Aquatic, Xenotheric] Large
Noo Ooze [Shapechanger, Xenotheric] Medium
Seppia Construct [Gear, Xenotheric] Medium
Setenall Outsider [Psionic, Xenotheric] Medium
Starborn Outsider [Xenotheric, Air, Earth] Medium
Uberich Humanoid [Xenotheric] Medium
Uongo-mijusi Outsider [Xenotheric] Medium
V'Kai Aberration [Xenotheric] Medium
Vaelza Ooze [Shapechanger, Xenotheric] Medium
Zeitgeist Aberration [Xenotheric] Medium
Zherihnghil Outsider [Xenotheric] Medium

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AuthorSulacu +
Identifier3.5e Subtype +
Rated ByLeziad +
RatingRating Pending +
SummaryThis subtype pertains to the Xenotheric family of outsiders, which hail from planes associated with aberrant lifeforms. + and Certain lifeforms have the capacity to generate large amounts of metabolic energy that can be used for many different purposes. +
TitleXenotheric +