Medium Undead, Any Alignment
Armor Class 18
Hit Points 30 (3d8 + 3)
Speed 40 ft., Does not get effected by rough terrain.
STR
6 (-2)
DEX
14 (+2)
CON
12 (+1)
INT
9 (-1)
WIS
16 (+3)
CHA
4 (-3)
Saving Throws WIS +5
Skills Deception +6, Perception +10, Stealth +10
Damage Vulnerabilities Radiant
Damage Resistances Acid, Cold, Fire, Lightning, Thunder; Bludgeoning, Piercing, and Slashing from Nonmagical Attacks
Damage Immunities Necrotic, Poison
Senses Darkvision 120 ft., Passive Perception 15
Languages All The unfortunate soul communicates by projecting images into other's mind. --
Challenge 4 (1,100 XP)
Proficiency Bonus +2
Traits

Amorphous. The shadow can move through a space as narrow as 1 inch wide without squeezing.

Wall Walk. The unfortunate soul can walk difficult surfaces, including upside down on ceilings, without needing to make an ability check.

Blind Stealth. While in dim light or darkness, the unfortunate soul closes it's eyes and can take the Hide action as a bonus action. Sneak +14 if hides. If spotted attack can sneak attack.

Sunrise Evaporation. as the sun rises the unfortunate soul slowly evaporates out of existences until following night. It takes double damage in this state.

Actions

Wisdom Drain. Melee Weapon Attack: +4 to hit, reach 5 ft., one creature. Hit: 9 (2d6 + 2) necrotic damage, and the target's Wisdom score is reduced by 1d4. The target amnesiac if this reduces its Wisdom to 0 and target stops attacking. Otherwise, the reduction lasts until the target finishes a short or long rest. Target must make Wisdom saving throw of 15 or higher to reverse effects or unfortunate soul dies.

False Memories. The target must pass WIS saving throw of 10+ or gets confused and starts attacking allies for two turns.

Reactions

Plee of Pitty. If about to be attacked by melee attack the unfortunate soul flashes it's projector eyes rapidly implanting thoughts of pitty causing attacker to step back and end turn. If rolls a Wisdom saving throw higher than attacker's Wisdom.

Description

Was once an unfortunate humanoid that fell upon hars times and was abruptly killed while making a deal for its soul with a dark deity now it resembles a tall thin humanoid shape with a body of pure black shadow, impenetrable by light. Its eyes are bright projector lights that flash rapidly as it thinks. But as soon as it closes it's eyes it almost completely vanishes.

Magicalskydaddy