Symbiont, Environmental Suit

This creature is a tall, bark-like humanoid covered with dozens of lashing vines baring tiny, hooked barbs. A vertical mouth at the front of its headless body is surrounded by a writhing ring of brightly-colored cilia.

Environmental Suit Symbiont CR 2

XP 600
N Medium plant (plant symbiont)
Init +2; Senses low-light vision; Perception +0


AC 14, touch 12, flat-footed 12 (+2 Dex, +2 natural)
hp 19 (3d8+6)
Fort +5, Ref +3, Will +1
DR 3/slashing; Immune plant traits; Resist cold 15, fire 15


Speed 30 ft.
Melee 2 slams +4 (1d6+2 plus grab)
Special Attacks bloody squeeze, constrict (1d6+2)


Str 14, Dex 15, Con 14, Int —, Wis 10, Cha 5
Base Atk +2; CMB +4 (+8 grapple); CMD 16
SQ bond, host abilities, mind link, symbiont healing


Environment any
Organization solitary
Treasure none


Bloody Squeeze (Ex)

Whenever an environmental armor symbiont deals maximum damage with its constrict ability, it also deals 1 point of bleed damage as hundreds of small vines flay the target. Additionally, it can forgo dealing constrict damage in a round and instead deal 2 points of bleed damage.


Environmental Protection (Ex)

An environmental suit symbiont protects the host from extreme temperature conditions (as per endure elements) as well as changes in pressure. The symbiont also provides continuous oxygen as long as there is sunlight for photosynthesis; otherwise it only contains an oxygen supply up to 24 hours. It takes the symbiont 1 hour to recharge its oxygen supply through photosynthesis. The suit automatically repairs rips and tears as they occur unless the symbiont is reduced to 0 hit points or less.

Natural Armor (Ex)

When bonded, an environmental suit symbiont grants the host a +1 natural armor bonus.


Slot chest; Price 7,000 gp


Feats Create Plant Symbiont; Cost 3,500 gp

An environmental suit symbiont attaches its roots to the host’s chest when bonded. Thousands of vines emanate from a long central stem encasing the host’s body, while membranous leaves cover the eyes, allowing the host to see. These vines secrete a specialized fluid to temporarily bind themselves together, making the suit airtight. The vines are conditioned to resist both extreme heat and cold, as well as protect the wearer from pressure changes due to different gravities.

The environmental armor symbiont takes a rough, stocky humanoid form when unbonded, and stands approximately 7 feet tall. The vines from its central stem form two legs and arms, though it has no discernible “head.” Its primary mode of combat is to engage and grapple its opponent while hundreds of small, hard vines and minute thorns constantly tear at held creatures, bleeding them dry. A common myth states the environmental armor symbiont grows stronger by soaking up the blood of its victims, though this is not true.

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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