Elder Thing CR 5
This strange creature has a star-shaped head and numerous writhing appendages arranged radially around its barrel-shaped body.
DEFENSE HP 70
EAC 17; KAC 19
Fort +7, Ref +7, Will +6
Defensive Abilities unflankable; Immunities cold; Resistances fire 10
Speed 30 ft., fly 20 ft. (Su, clumsy), swim 40 ft.
Melee mass of tentacles +14 (1d6+8 B plus grab)
Offensive Abilities constrict (1d6+8)
A creature that begins its turn grappled by the elder thing takes the listed damage. An elder thing can grapple and constrict multiple creatures as long as they are adjacent to it.
An elder thing can voluntarily enter a state of hibernation with 1 minute of preparation. In this state, it is essentially helpless, much like being in deep sleep. The duration has no limit and it does not need to eat or drink, nor does it age. If another creature touches it or it suffers damage while hibernating, an elder thing can attempt a DC 18 Will save.
If successful, it awakens after 2d4 rounds. If it fails, it takes 1d4 days to awaken. When it first enters hibernation, it can set a specific duration for the state. When the time has elapsed, it only takes 1d3 rounds for it to be ready to act.
Limited Starflight (Ex)
An elder thing can survive in deep space, despite the lack of air.
Unlike certain other creatures, it cannot remain conscious during space travel, nor can it travel at extremely fast speeds. It calculates the distance and then relies on inertia and remains in hibernation to survive the journey.
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.