Shadow Walker (5e Creature)
From D&D Wiki
Small fiend (demon), chaotic evil
Skills Stealth +5, Perception +4
Shadow's Sight. Magical darkness doesn't impede the demon's darkvision.
Magic Resistance. The demon has advantage on saving throws against spells and other magical effects.
Shadow Stealth. While in dim light or darkness, the demon can take the Hide action as a bonus action.
Shadow Blend. The Shadow Walker can take the Hide action as a bonus action into a creatures shadow.
Elusive Body. The Shadow Walker can move through a space as narrow as 1 inch wide without squeezing.
Incorporeal Movement. The Shadow Walker can move through other creatures and objects as if they were difficult terrain. It takes 5 (1d10) force damage if it ends its turn inside an object.
Claws. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 5 (2d6 + 2) necrotic damage.
Shadows fright. (recharge 4) The Shadow Walker makes an illusion to appear as a frighting image of dark horrors. One creature in range of 30 ft must make a DC 13 Wisdom saving throw. The creature gains disadvantage on the roll if in dark or dim lighting. On a failed save, a target is frightened for 1 minute and takes 4 (1d8) psychic damage. An affected creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.
Shadow walkers are creatures of the Abyss meant to serve higher ranking demons. They work as spies to some but most work as assassins to cause chaos and discord among civilization. They are known to torture their targets by driving them mad by momentarily appearing in the shadows, before disappearing; tricking most into thinking that they're losing their minds.