The vague outline of a person wavers to and fro, mirage-like, formed from grass and weeds seemingly caught on a breeze with hair of blowing corn silk.

Summoned Saboteur. The bilwis is an elemental creature. Usually summoned on behalf of another to ruin an enemy’s crops, the bilwis hides in the fields until harvest draws near then rips through the crops, devouring and scattering the yield.

False Undead. The form of a bilwis leads to them being misidentified as a ghost of some kind, and they are often referred to as a “field ghost.” Though remedies for a haunting fail to drive them away, the remedies do sometimes add the undead to the list of local maladies when graves are disturbed unnecessarily.

Shrouded in Superstition. Many farmers believe that if they plant and plow their fields from the outside inward, the bilwis won’t be able to find its way in to damage their crops. The bilwis are also blamed for the spread of various illnesses but have no such ability.

Elemental Nature. The bilwis doesn’t require air, food, drink, or sleep.


Medium elemental, chaotic evil
Armor Class 13
Hit Points 49 (11d8)
Speed 0 ft., fly 40 ft. (hover)
12 (+1) 16 (+3) 10 (+0) 10 (+0) 13 (+1) 16 (+3)

Damage Resistances lightning, thunder
Damage Immunities poison
Condition Immunities exhaustion, grappled, paralyzed, petrified, poisoned, prone, restrained, unconscious
Senses darkvision 60 ft., passive Perception 11
Languages Auran
Challenge 1 (200 XP)

Air Form. The bilwis can enter a hostile creature’s space and stop there. It can move through a space as narrow as 1 inch wide without squeezing.


Slam. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 12 (2d8 + 3) bludgeoning damage.

Whirlwind (Recharge 5-6). Each creature in the bilwis’ space and within 5 feet of it must make a DC 12 Strength saving throw. On a failure, a target takes 14 (4d6) bludgeoning damage and is knocked prone. On a success, a target takes half the bludgeoning damage and isn’t knocked prone.

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