Agarat

Turning Defiance. The agarat and any ghouls within 30 feet of it have advantage on saving throws against effects that turn undead.

Multiattack. The agarat attacks two times: one with its bite and one with its claws.

Bite. Melee Weapon Attack: +3 to hit, range 5 ft., one creature. Hit: 12 (2d8 + 3) piercing damage.

Claws. Melee Weapon Attack: +5 to hit, range 5 ft., one creature. Hit: 10 (2d6 + 3) slashing damage. If the target is a creature other than an undead, it must succeed on a DC 11 Constitution saving throw or be paralyzed for 1 minute. The target can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.

Horrid Scream (Recharge 5-6). The agarat can emit a bloodcurdling, supernatural scream. Each creature within 30 feet that can hear its scream takes 5 (1d10) necrotic damage and must succeed on a DC 11 Constitution saving throw. On a failed save, a creature will have its hit point maximum reduced by an amount equal to the damage taken. This reduction lasts until the target finishes a long rest. The target dies if this effect reduces its hit point maximum to 0.