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Will-O’-Wisp CR 6

This faintly glowing ball of light bobs gently in the air, the nebulous image of what might be a skull visible somewhere in its depths.

XP 2,400
CE Small aberration (air)
Init +5; Senses darkvision 60 ft.; Perception +15


EAC 18; KAC 20
Fort +5, Ref +5, Will +11
Defensive Abilities natural invisibility; Immunities magic


Speed fly 50 ft. (Su, perfect)
Melee shock +14 (2d6+8 E)
Ranged shock +10 (1d8 +8 E)


Str -3, Dex +5, Con +1, Int +3, Wis +2, Cha +1
Skills Acrobatics +18, Bluff +18, Culture +15, Stealth +18, Sense Motive +15
Languages Aklo, Common
Other Abilities feed on fear


Feed on Fear (Su)

Any time a will-o’-wisp is within 15 feet of a dying creature or creature subject to a fear effect, it gains fast healing 5.

Immunity to Magic (Ex)

Will-o’-wisps are immune to all spells and spell-like abilities that allow spell resistance, except magic missile.

Natural Invisibility (Ex)

Will-o’-wisps have the ability to extinguish their natural glow as a move action, effectively becoming invisible, as per the spell.


Environment any swamp
Organization solitary, pair, or string (3–4)

Evil creatures that feed on the strong psychic emanations of terrified creatures, will-o’- wisps delight in tempting gullible travelers into dangerous situations by imitating warning lights, beacons, and safety signals. Will-o’-wisps only use their electric shock ability under extreme duress, preferring to let other creatures or hazards claim their victims while they float nearby and feast on their trauma.

Will-o’-wisps can glow any color they choose, but are most frequently yellow, white, green, or blue. They can even vary their luminosity to create patterns—many will-o’-wisps are fond of creating vague skull-like shapes in their glow to further terrify their victims. Their actual bodies are barely visible globes of translucent spongy material 1 foot across and weighing 3 pounds, capable of emitting light from every surface. A will-o’-wisp’s light is approximately as bright as a torch, and though they do not seem to use sound to communicate with each other, they hear perfectly and can vibrate their bodies rapidly to simulate speech.

While vilified by most other sentient creatures, will-o’-wisps are actually quite intelligent, if utterly alien in their reasoning. Sometimes organized into groups called “strings,” their society and goals remain complete unknowns to outsiders, as do their origins, though they have sometimes been known to strike bargains with those who can offer them vast quantities of appropriately frightened victims. As will-o’-wisps do not age, and are effectively immortal unless killed by violence, particularly ancient will-o’-wisps can serve as fantastic repositories of knowledge from the ancient past, although convincing one of these cruel creatures to cooperate with an interrogation can be a trick in and of itself.

Section 15: Copyright Notice

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.