Ghul

Paralyzing Throes. When the ghul dies, it explodes in a puff of noxious smoke. Each creature within 5 feet of it must succeed on a DC 13 Constitution saving throw or be paralyzed until the end of its next turn.

Turn Resistance. The ghul has advantage on saving throws against any effect that turns undead.

Variable Immunity. As a bonus action, the ghul changes one of its damage resistances to immunity to that type of damage until the start of its next turn.

Innate Spellcasting. The ghul's innate spellcasting ability is Charisma (spell save DC 13, +5 to hit with spell attacks). It can innately cast the following spells, requiring no material components: At will: chill touch, fire bolt, ray of frost, shocking grasp 3/day each: fog cloud, rolling thunder, misty step, spire of stone 1/day each: blur, fireball, gaseous form, frozen razors, stinking cloud

Multiattack. The ghul makes two attacks with its claws.

Claws. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 10 (2d6 + 3) slashing damage. If the target is a creature other than an elf or undead, it must succeed on a DC 13 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.