Monster Manual
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.
Strength Drain.
Melee Weapon Attack:+4 1d20+4 , Reach 5 ft., one creature
Hit: 9 2d6+2 necrotic damage
If the creature is successfully hit, their Strength score is reduced by 1d4 . The target dies if this reduces its Strength to 0. Otherwise, the reduction lasts until the target finishes a short or long rest.
If a non-evil humanoid dies from this attack, a new shadow rises from the corpse 1d4 hours later.
Tombs, and charnel houses.