Will-o’-Wisp

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.

Will-o’-Wisp CR 6

XP 2,400
CE Small aberration (air)
Init +13; Senses darkvision 60 ft.; Perception +17

DEFENSE

AC 26, touch 26, flat-footed 16; (+5 deflection, +9 Dex, +1 dodge, +1 size)
hp 40 (9d8)
Fort +3, Ref +12, Will +9
Defensive Abilities natural invisibility; Immune magic

OFFENSE

Speed fly 50 ft. (perfect)
Melee shock +16 touch (2d8 electricity)

STATISTICS

Str 1, Dex 29, Con 10, Int 15, Wis 16, Cha 14
Base Atk +6; CMB +0; CMD 24
Feats Alertness, Blind-Fight, Dodge, Improved Initiative, Weapon Finesse
Skills Acrobatics +21, Bluff +11, Escape Artist +21, Fly +31, Perception +17, Stealth +25
Languages Aklo, Common
SQ feed on fear

SPECIAL ABILITIES

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 and maze.

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.

ECOLOGY

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

Every trapper and bog farmer living near marshes or swamps has his own name for these faintly glowing balls of light—jack o’ the lanterns, corpse candles, walking fires, pine lights, spooklights, rushlights—but all recognize them as dangerous predators and false guides in the darkness.

Evil creatures that feed on the strong psychic emanations of terrified creatures, will-o’-wisps delight in tempting gullible travelers into dangerous situations. In the wild lands where they’re most common, will-o’-wisps favor simple tactics like positioning themselves over cliffs or quicksand where they can easily be mistaken for lanterns (especially if they can set their traps near actual signal lanterns), allowing them to lure unwary travelers into perilous situations. On rare occasions, will-o’-wisps seeking easier pickings will move into a city and take up residence near gallows or follow along invisibly behind an army in order to harvest the fear of the dying men; why the vast majority choose to remain in the swamps where victims are scarce remains a mystery. 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.

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.

Variant: Will-o’-the-Pit (CR 6)

[Source]

Unlike a normal will-o’-wisp, this creature can only glow a deep brown color. Also contrasting with its kin, a will-o’-the-pit actively seeks to create death, peril, and other hazards so it can float nearby and feast.

Create Pit (Su)

Once every 1d4 rounds as a standard action, a will-o’-the-pit can create a 10-ft.-by-10-ft. extra-dimensional hole, with a depth of 30 ft., within 200 ft. of itself. It must create the pit on a horizontal surface of sufficient size. Since it extends into another dimension, the pit has no weight and does not otherwise displace the original underlying material. It can create the pit in the deck of a ship as easily as in a dungeon floor or the ground of a forest. Any creature standing in the area where the will-o’-the-pit first conjured the pit must make a Reflex saving throw (DC 19) to avoid falling into it. In addition, the edges of the pit are sloped, and any creature ending its turn on a square adjacent to the pit must make a Reflex saving throw (DC 19), with a +2 bonus, to avoid falling into it. Creatures subjected to an effect intended to push them into the pit (such as bull rush) do not get a saving throw to avoid falling in if they are affected by the pushing effect.

Creatures who fall into the pit take falling damage as normal. The pit’s coarse stone walls have a Climb DC of 25. These pits remain for 1 minute when the duration ends; creatures within the hole rise up with the bottom of the pit until they are standing on the surface over the course of a single round.

This replaces a will-o-wisp’s melee attack.

Immune Will-o’-the-pits are immune to all spells and spell-like abilities that allow spell resistance, except conjuration spells.

This replaces a will-o-wisp’s normal immunity to magic.

Feats Ability Focus (create pit); this replaces Weapon Finesse.

Environment underground; this replaces a will-owisp’s any swamp.

Editor’s Note

Does invisibility purge work on creatures that are naturally invisible?

In general, yes–nothing in the spell description says it only works on spells or other magical sources of invisibility. However, note that the invisible stalker’s natural invisibility specifically says that it is not subject to invisibility purge. Thus, will-o’-wisps and pixies become visible, but invisible stalkers do not.

[Source]

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