Cursed Doll

Regeneration. The doll regains 5 hit points at the start of its turn. If the doll takes fire or psychic damage, this trait doesn’t function at the start of the doll’s next turn. The doll is destroyed only if it starts its turn with 0 hit points and doesn’t regenerate.

Unusual Nature. The doll doesn’t require air, food, drink, or sleep.

Cursed Hold. Melee Weapon Attack: +2 to hit, reach 5 ft., one creature. Hit: The target is grappled (escape DC 10) and takes 6 (1d10) psychic damage at the start of each of its turns until this grapple ends. The doll can grapple only one creature at a time.

Haunting Giggle. The doll giggles as it targets one creature it can see within 30 feet of it. Each target that can hear the doll’s giggle must make a DC 11 Wisdom saving throw, succeeding automatically if it has an Intelligence of 4 or lower. On a failed saving throw, the creature takes 5 (2d4) psychic damage and is frightened until the end of it's next turn as it is overcome by unease. Creatures grappled by a Cursed Doll have disadvantage on their saving throw to resist this ability.