Broken One (The Hut of Baba Yaga by Sidequest)

Aura of Dispair. Each creature within 30 feet that can see or hear the broken one has  Disadvantage on saving throws against the Frightened or Restrained conditions.

Unceasing Misery. If damage reduces the broken one to 0 Hit Points, it makes a  Constitution saving throw with a DC of 5 plus the damage taken. On a successful save, the
broken one drops to 1 Hit Point instead.

Tormented Mind. The broken one has Advantage on saving throws against effects that would induce the Incapacitated or Stunned conditions. Additionally, when the broken one is targeted by an effect that would give it the Charmed condition, the source of that effect takes 7 (2d6) Psychic damage and makes a DC 13 Wisdom saving throw. On a failure, the creature has the Stunned condition.

Multiattack. The broken one makes two Shackled Strike attacks.

Shackled Strike. Melee Weapon Attack: +4 to hit, reach 5 ft., Hit: 5 (1d6 + 2) bludgeoning  damage plus 2 (1d4) Necrotic Damage

Maddening Touch. Strength or Dexterity Saving Throw: DC 12, one creature no more than one size larger than the broken one that it can see within 5 feet. Failure: The target has the Grappled condition (escape DC 12). Until this grapple ends, the target has the Restrained
condition, takes 7 (2d6) Psychic damage at the start of each of its turns, and the broken one cannot use Maddening Touch or attack another creature other than the Grappled creature.

Spiteful Lunge. Trigger: A creature within 5 feet misses the broken one with an attack. Response: The broken one makes a Shackled Strike attack against the target.