Archives of Nethys

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Template Grafts | Universal Monster Rules


Source Starfinder #8: Escape from the Prison Moon pg. 58

Odheo CR 1

XP 400
N Tiny vermin
Init +4; Senses blindsense (scent) 60 ft., darkvision 60 ft.; Perception +5


HP 17
EAC 11; KAC 13
Fort +5; Ref +3; Will +1
Defensive Abilities evasive


Speed 30 ft., climb 30 ft.
Melee bite +8 (1d3+3 S) or harpoon tongue +8 (1d6+1 P)
Space 2-1/2 ft.; Reach 0 ft. (15 ft. with harpoon tongue)


STR +2; DEX +4; CON +1; INT —; WIS +0; CHA -2
Skills Acrobatics +5, Athletics +5 (+13 to climb), Stealth +10
Other Abilities blood explosion, mindless


Environment any underground or urban
Organization solitary or infestation (4–20)

Special Abilities

Blood Explosion (Ex) When an odheo dies, it pops in a mess of ingested blood and viscous slime. A creature adjacent to the odheo must succeed at a DC 10 Fortitude saving throw or become sickened for 1d4 rounds, after which that creature takes a –2 penalty to saving throws against disease for the next 24 hours. A creature that is already sickened when it fails this saving throw becomes nauseated for 1d4 rounds instead. Odheos are immune to the effects of this ability.

Evasive (Ex) When a creature attempts a melee or ranged attack against an odheo and misses, the odheo can take a guarded step as a reaction.


Odheos are one of the galaxy’s strongest cases for following proper biocontainment procedures. Originally from Gjor III, these slimy vermin have spread to thousands of space stations, having been unwittingly carried across the galaxy by careless couriers or merchants. Odheos prefer to live in artificial environments, limiting their destruction of natural ecosystems, but this preference is cold comfort to those urban and station residents they torment.

An odheo is a bold pest, openly jabbing creatures with its long tongue and then escaping back into hiding before victims can retaliate. They live in vents or engineering tunnels and breed rapidly, making them difficult to remove once they have infested an area. They are also impossible to eat, exploding into a rancid mix of gore and slime when killed, rendering them useless for anything other than aggravation.

Odheos evolved from an arboreal ancestor that used its long tongue to attach to creatures that passed by. The odheo’s ten chitinous legs and gripping feet still make it extremely adept at climbing almost any surface. Unlike its ancestors, though, an odheo uses its harpoon tongue as its main method of feeding, only moving in to bite creatures that are helpless or dead.

Odheos lair in cramped spaces, but only a few remain in their filth-covered nest at any one time, while the others hunt. When an odheo nest is discovered and destroyed, any survivors—including those not present for the nest’s annihilation—instinctively hide and hibernate in nooks and crannies. Hibernating odheos can live for up to 3 months without food or liquids, making an odheo infestation extremely hard to eradicate.