Detached Shadow

Medium Fey, Chaotic Evil

AC: 12

Initiative: +2 (12)

HP: 16 (3d8 + 3)

Speed: 40 ft.

STR: 6 (-2)
DEX: 14 (+2)
CON: 13 (+1)
INT: 6 (-2)
WIS: 10 (+0)
CHA: 8 (-1)

Skills: Stealth +4

Vulnerabilities: radiant

Resistances: acid; cold; fire; lightning; thunder; bludgeoning, piercing, slashing from nonmagical attacks

Immunities: necrotic; poison

Condition Immunities: exhaustion; frightened; grappled; paralyzed; petrified; poisoned; prone; restrained

Senses: darkvision 60 ft., Passive Perception 10

CR: 1/2 (XP 100; PB +2)

Habitat: Underdark, Urban

Amorphous.

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

Shadow Stealth.

While in dim light or darkness, the shadow can take the Hide action as a bonus action. Its stealth bonus is also improved to +6.

Sunlight Weakness.

While in sunlight, the shadow has disadvantage on attack rolls, ability checks, and saving throws.

Actions

Strength Drain.

Melee Weapon Attack: +4 to hit, reach 5 ft., one creature. Hit: 9 (2d6 + 2) necrotic damage, and the target's Strength score is reduced by 1d4. The target falls unconscious if this reduces its Strength to 0. The creature regains consciousness and the reduction to its Strength score disappears after it finishes a short or long rest.

Find this creature in the encounter builder

Source: The Wild Beyond the Witchlight, p. 213 - Licenses and attribution