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Template Grafts | Universal Monster Rules

Celestaur Bull

Source Starfinder #43: Icebound pg. 56

Celestaur Bull Tier 15

LG Medium starship magical beast
Speed 10; Maneuverability good (turn 1); Drift
AC 29; TL 26
HP 400; DT —; CT 80
Shields 375 (forward 175, port 100, starboard 100, aft —)
Attack (Forward) gore (2d6 × 10; 1 hex), horn cannons (5d8; 5 hexes)
Attack (Port) flanking scattershot (5d8; 10 hexes)
Attack (Starboard) flanking scattershot (5d8; 10 hexes)

Other Abilities gore, living starship, speed burst, void adaptation


Engineer (1 action) Engineering +26 (15 ranks)
Gunners (3 actions) gunnery +22 (15th level)
Pilot (1 action) Piloting +32 (15 ranks)
Science Officer (1 action) Computers +26 (15 ranks)


Environment any vacuum
Organization solitary

Special Abilities

Gore (Ex) The celestaur bull’s gore attack has the ramming property (Starship Operations Manual 16). If the celestaur succeeds at a Ramming Speed pilot action (Starship Operations Manual 17) and hits its target, the celestaur has impaled its target; for as long as the celestaur bull remains adjacent to its impaled target, the bull’s horn cannons ignore the impaled target’s shields.
Speed Burst (Ex) Once every 1d4 rounds, a celestaur can increase its speed by 4 for 1 round during the Engineering phase.


Celestaurs are a species of magical beasts the size of small starships, with a temperament that usually ranges from friendly curiosity to outright playfulness. They wander the cosmic wilds in vast herds, feeding on solar flares and cosmic phenomena such as schools of paraforans and time eater ganglions (Starship Operations Manual 137). Sometimes, bulls are taken from the herd and reared by barachius angels (Alien Archive 12) to hunt endbringer devils (Alien Archive 34) and other evil outsiders large enough to threaten starships.
With their penchant for technology, barachius angels have taken to shearing off the horns of bull celestaurs and replacing them with starship-scale cannons—in extreme cases, these weapons are so large they double the bull’s natural length. Additional weapons—used to harry foes while the celestaur bull turns around for another charge through space—are affixed to the creature’s flanks by a comfortable but sturdy titanium harness that also generates powerful shields. Once mature, these armed celestaurs are usually released into the wild to seek out and destroy evil, though some angels train them as starfaring mounts or teach them to pull enormous chariots through the void.
When trained in this way, celestaur bulls are single-minded in their aggression against demons, devils, and other evil outsiders. They tend to ignore other space travelers unless provoked. Celestaurs are only slightly smarter than a clever animal, and they can be easily outwitted without an angel to shepherd them.
When its weapons become damaged, a celestaur bull returns to the site where it was raised, seeking repairs from the barachius angels who reared it. Often, these angels have moved on, and it is left to the inhabitants of a local space station or passing freighter to befriend the cosmic beast, providing the necessary repairs while gaining the loyalty of an intimidating guardian.