Chouffevon

Multiattack. The Chouffevon makes two claw attacks and can use either Imprison Soul or Arms of the damned.

Claw. Melee Weapon Attack: +10 to hit, reach 5 ft., one target. Hit: 12 (2d6 + 5) slashing damage plus 21 (6d6) necrotic damage.

Soul Feed. The Chouffevon chooses a living humanoid with less than 10 hit points that it can see within 30 feet of it. That creature is teleported inside the Chouffevon ribcage and begins to be digested. A creature imprisoned in this manner has disadvantage on death saving throws. If it dies while being absorbed, the Chouffevon regains half of that creatures max hit points, immediately recharges Arms of the damned, and gains an additional action on its next turn. Additionally, at the start of its next turn, the Chouffevon regurgitates the slain creature as a bonus action, and the creature becomes an undead under its command. If the victim had 2 or fewer Hit Dice, it becomes a zombie. If it had 3 to 5 Hit Dice, it becomes a ghoul. Otherwise, it becomes a wight. A Chouffevon can absorb only one creature at a time.

Arms of the damned (Recharge 6). The Chouffevon summons 4 extra arms that appear to sprout from its back. Each arm having a 10ft reach. Up to 4 creatures within 10ft must make a DC 18 Strength saving throw or are grappled. Every turn a grappled creature that remains so must make a DC18 Constitution saving throw or take 44 (8d10) necrotic damage on a failed save, or half as much damage on a successful one. Increase the damage by 10 for each living humanoid with 0 hit points in the Chouffevons grasp.

Eye of awakened fear

When hit by an attack, the Chouffevon can open one of its palm, revealing a blood shot eye that awakens the attackers greatest fear. 

The attacker must make a DC 16 Charisma saving throw or have disadvantage on the attack