Symbiont, Lifesuit

A humanoid collection of bark, roots, and leaves lopes along with surprising grace.

Lifesuit CR 4

XP 1,200
N Medium plant (plant symbiont)
Init +3; Senses low-light vision; Perception +1


AC 17, touch 13, flat-footed 14 (+3 Dex, +4 natural)
hp 37 (5d8+15)
Fort +7, Ref +4, Will +2
DR 5/slashing; Immune cold, plant traits


Speed 30 ft.
Melee slam +7 (1d4+4), bite +7 (1d6+4 plus grab)
Space 5 ft.; Reach 5 ft. (10 ft. with bite)
Special Attacks steal oxygen (DC 15)


Str 18, Dex 17, Con 16, Int —, Wis 12, Cha 7
Base Atk +3; CMB +7; CMD 20
SQ bond, host abilities, mind link, symbiont healing


Environment any
Organization solitary
Treasure none


Steal Oxygen (Ex)

When a lifesuit symbiont successfully grapples a creature it forces clusters of small tubes into its enemy’s mouth and nose. At the start of the lifesuit’s next turn, if the symbiont maintains the grapple, it begins draining oxygen from the target’s lungs. The grappled creature must succeed at a DC 15 Fortitude save or begin to suffocate. A suffocating creature cannot speak or successfully cast spells with verbal components. This effect ends if either the lifesuit or the grappled creature breaks the grapple. Each round the lifesuit successfully forces a creature to suffocate replenishes 1 round of the suit’s oxygen supply.


Natural Armor (Ex)

When bonded, a lifesuit symbiont grants its host a +2 natural armor bonus.

Environment Protection (Ex)

A lifesuit protects the host from extreme cold as if by endure elements as well as pressure changes of space. The natural ichor and fluids of the lifesuit symbiont allow the symbiont to seal any punctures or tears instantly.

Life Sealed (Ex)

While bonded to a host creature, a lifesuit subsists on the host creature’s exhaled breath and does not require air from outside sources. In return, a lifesuit generates breathable air for the host creature by converting exhaled breath into fresh oxygen. A lifesuit can perform this task even while underwater or in an airless environment.

Additionally, a lifesuit’s host is rendered immune to inhaled poisons and diseases. A lifesuit can supply oxygen to a host in an airless environment for 24 hours, after which time the lifesuit must recharge in a breathable atmosphere for 1 hour.

Space Flight (Ex)

When in the vacuum of space, the lifesuit can release bursts of oxygen from its supply through porous nodes on its body. This effect grants its host a fly speed of 20 ft. with poor maneuverability for 1 minute in exchange for 1 hour of its current air supply.

Radiation Resistance (Ex)

A lifesuit completely protects its host against low radiation and reduces the effects of medium radiation to low radiation, but it offers no protection against high or severe radiation.


Slot chest; Price 30,500 gp


Feats Create Plant Symbiont; Cost 15,250 gp

The lifesuit symbiont uses its roots to attach to the host’s chest. From a central stem which covers most of the host’s body, thousands of vines branch out, completely encasing the host. Specialized membranous leaves cover the eyes, allowing the host to see. The vines secrete a fluid which temporarily binds them together, making the suit airtight.

Thousands of tiny sacs pump oxygen through the suit as long as the symbiont is bonded.

Detached, the lifesuit symbiont takes on a humanoid appearance, standing 5 to 5 1/2 feet tall. It features a long petiole with two hinged jaws equipped with special fibers allowing it to suck oxygen from other living creatures and store it. In combat, it can form vague, arm-like appendages from its vines to attack opponents.

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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