Symbiont, Airsuit

This creature has a vaguely serpentine form comprised primarily of leaves and fibrous thread-like vines.

Airsuit SymbiontCR 1

XP 400
N Medium plant (plant symbiont)
Init +2; Senses low-light vision; Perception +1


AC 12, touch 10, flat-footed 12 (+2 natural)
hp 16 (2d8+5)
Fort +4, Ref +0, Will +1
DR 2/slashing; Immune plant traits


Speed 30 ft.
Melee bite +1 (1d4+1)


Str 10, Dex 10, Con 13, Int —, Wis 12, Cha 6
Base Atk +1; CMB +1; CMD 11
SQ bond, host abilities, mind link, symbiont healing


Environment any
Organization solitary
Treasure none


Natural Armor (Ex)

When bonded, an airsuit symbiont grants its host a +1 natural armor bonus.

Life Sealed (Ex)

While bonded to a host creature, an airsuit subsists on the host creature’s exhaled breath and does not require air from outside sources. In return, an airsuit generates breathable air for the host creature by converting its own exhaled breath into fresh oxygen. An airsuit can perform this task even while underwater or in an airless environment. Additionally, an airsuit’s host is immune to inhaled poisons and diseases. An airsuit can supply oxygen to a host in an airless environment for 24 hours, after which time the airsuit must recharge in a breathable atmosphere for 1 hour.


Slot chest; Price 2,500 gp


Feats Create Plant Symbiont; Cost 1,250 gp

An airsuit symbiont wraps its serpentine body around its host’s torso and unfolds one end of its body to wrap around its host’s face and head. Transparent leaves cover the wearer’s eyes allowing for a full field of vision. Detached, the lifesuit symbiont resembles a large constrictor snake with a tube-like head of thorny teeth.

The erahthi originally created the airsuit symbiont for use in underwater environments but adapted it as an early means of environmental protection for the first generation of aetherships pilots. The functionality of the airsuit eventually led to the development of the more powerful and robust lifesuit symbiont.

Section 15: Copyright Notice

Alien Codex © 2018, Legendary Games; Lead Designer: Jason Nelson. Authors: Anthony Adam, Kate Baker, John Bennet, Eytan Bernstein, Robert Brookes, Russ Brown, Duan Byrd, Paris Crenshaw, 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, Jeff Provine, Alistair J. Rigg, Alex Riggs, Wendall Roy, Mike Shel, Neil Spicer, Todd Stewart, Russ Taylor, Rachel Ventura, Mike Welham, George Loki Williams, Scott Young.

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