Archives of Nethys

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Template Grafts | Universal Monster Rules


Source Starfinder #44: Allies Against the Eye pg. 61

Vascrivorei CR 11

XP 12,800
N Colossal magical beast
Init +8; Senses darkvision 60 ft., low-light vision; Perception +20


HP 175
EAC 25; KAC 25
Fort +14; Ref +15; Will +10
DR 5/magic; Immunities cold, energy drain; Resistances electricity 10, fire 10


Speed 40 ft., burrow 30 ft.
Melee bite +24 (4d6+17 P & C plus grab; critical nauseate) or necrotic spine +24 (4d6+18 C; critical nauseate)
Multiattack 4 necrotic spines +18 (2d6+18 C)
Space 30 ft.; Reach 20 ft. (30 ft. with necrotic spines
Offensive Abilities puncture vitality (DC 18), shatter vitality (DC 18)


STR +6; DEX +8; CON +7; INT -2; WIS +2; CHA +0
Skills Acrobatics +20, Athletics +25, Stealth +20
Languages Aklo (can’t speak any language)
Other Abilities compression, create darkness, negative energy affinity


Environment any land
Organization solitary, pair, fen (3–6)

Special Abilities

Negative Energy Affinity (Su) For effects that target a creature based on type, a vascrivorei counts as both its normal type (a magical beast, in the case of a vascrivorei) or undead, whichever is worse.
Puncture Vitality (Su) The vascrivorei uses its spines or mandibles to project necrotic energy at a creature within 120 feet, dealing 3d8+11 cold damage and infusing it with entropic forces for 1 hour. A successful DC 18 Fortitude save halves the cold damage and negates the infusion. Infused creatures gain the effects of the vascrivorei’s negative energy affinity.
Shatter Vitality (Su) The vascrivorei wraps an infused creature within reach in its shadow spines, flooding the target with entropy. The creature must attempt a DC 18 Fortitude save. On a failure, it is paralyzed for 1 round and exhausted. On a success, it’s nauseated for 1 round and fatigued. Regardless of the save result, the creature is then immune to the vascrivorei’s shatter vitality for 24 hours.


Vascrivoreis are serpentine predators with glossy, iridescent eyes and backs bristling with flexible spines of partially corporeal necrotic energy. They also feed on negative energy, absorbing it from the environment or irradiating prey, which slowly decays into a suitable meal.

The mouth of a vascrivorei is guarded by scores of thin, articulated mandibles, each as dexterous as a humanoid finger— the creatures are unsettlingly adept at manipulating doors and other devices with these features. The hides of Vascrivorei display distorted versions of their meals: abstractions in shades of black, purple, and blue. As a vascrivorei grows, it sheds its skin, and over time its habitat becomes an eerie archive of violence recorded on its own discarded hides. Though most grow no larger than a cargo container or small home, vascrivoreis in particularly blasted regions can be as large as starships. In the absence of entropic forces, the creatures diminish in size and enter a dormant state that can last centuries.