Manes Vaporspawn

Medium Fiend (Demon), Chaotic Evil

STR
14 (+2)
DEX
12 (+1)
CON
15 (+2)
INT
5 (-3)
WIS
8 (-1)
CHA
3 (-4)
Contortionist.

The manes can move through a space as narrow as 1 inch without expending extra movement to do so.

Sickening Vapors.

Constitution Saving Throw: DC 12, each creature in a 5-foot Emanation originating from the manes at the end of the manes's turn. Failure: The target has the Incapacitated condition until the end of its next turn. Success: The target is immune to this manes's Sickening Vapors for 24 hours.

Actions

Claw.

Melee Attack Roll: +4, reach 5 ft. Hit: 5 (1d6 + 2) Slashing damage plus 5 (2d4) Necrotic damage.

Bonus Actions

Shadow Stealth.

While in Dim Light or Darkness, the manes takes the Hide action.

Find this creature in the encounter builder

Manes Vaporspawn

Source: Monster Manual (2025), p. 201 - Licenses and attribution