Actions

Multiattack. The ghost makes two attacks with its chains.

Chains. Melee Weapon Attack: +7 to hit, reach 10', one target. Hit: 11 (2d6 + 4) bludgeoning damage. The target is grappled (escape DC 14) if the ghost isn't already grappling a creature. Until this grapple ends, the target is restrained & takes 7 (2d6) necrotic damage at the start of each of its turns.

Animate Chains (1/Day). Up to three chains the ghost can see within 60' of it animate under the ghost's control, provided the chains aren't being worn or carried.

Each animated chain is an object with AC 20, 20 HP, resistance to piercing damage, & immunity to psychic & thunder damage. When the ghost uses Multiattack on its turn, it can use each animated chain to make one additional chain attack. An animated chain can grapple one creature of its own but can't make attacks while grappling. An animated chain reverts to its inanimate state if reduced to 0 HP or if the ghost is incapacitated or dies.

Reactions

Unnerving Mask. When a creature the ghost can see starts its turn within 30' of the ghost, the ghost can create the illusion that it looks like one of the creature's departed loved ones or bitter enemies. If the creature can see the ghost, it must succeed on a DC 15 Wisdom saving throw or be frightened until the end of its turn.