Horde of Shadows

Large Undead

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

Skills: stealth +4
Damage Vulnerabilities: radiant
Damage Immunities: necrotic, poison
Damage Resistances: acid, cold, fire, lightning, thunder; damage from nonmagical weapons
Condition Immunities: charmed, fatigue, frightened, grappled, paralyzed, petrified, poisoned, prone, restrained
Senses: darkvision 120 ft., passive Perception 10
Languages:

Amorphous: The horde can pass through an opening as narrow as 1 inch wide without squeezing.
Area Vulnerability: The horde takes double damage from any effect that targets an area.
Horde Dispersal: When the horde is reduced to 0 hit points, it turns into 2 (1d4) shadows, each of which are bloodied.
Horde: The horde is composed of 5 or more shadows. If it is subjected to a spell, attack, or other effect that affects only one target, it takes any damage but ignores other effects. It can share its space with Medium or smaller creatures or objects.
Sunlight Weakness: While in sunlight, the horde has disadvantage on attack rolls, ability checks, and saving throws.
Undead Nature: The horde doesnt require air, sustenance, or sleep.

Multiattack: The horde makes up to three claw attacks but no more than one against each target.
Claw: Melee Weapon Attack: +4 to hit, reach 5 ft., one creature. Hit: 16 (4d6 + 2) necrotic damage and the target makes a DC 12 Constitution saving throw. On a failure the target is cursed until it finishes a short or long rest or is the subject of remove curse or a similar spell. While cursed the target makes attack rolls Strength checks and Strength saving throws with disadvantage. If the target dies while cursed a new undead shadow rises from the corpse in 1d4 hours the corpse no longer casts a natural shadow and the target can't be raised from the dead until the new shadow is destroyed.

Shadow Sneak: The horde takes the Hide action even if obscured only by dim light or darkness.