Large fiend, chaotic evil

Armor Class: 18

Hit Points: 184

Speed: 20 ft , fly: 30 ft

STR

21 +5

DEX

10 +0

CON

22 +6

INT

19 +4

WIS

12 +1

CHA

15 +2

Saving Throws: CON +11, INT +9, WIS +6, CHA +7

Damage Resistances: Cold, Fire, Lightning; Nonmagical Bludgeoning, Piercing, and Slashing

Damage Immunities: Poison

Condition Immunities: Poisoned

Senses: Truesight 120ft., Passive Perception 11

Languages: Abyssal, Telepathy 120ft.

Challenge Rating: 13 ( 10000 XP)

Proficiency Bonus: +5

Actions

Multiattack. The nalfeshnee uses Horror Nimbus if it can. It then makes three attacks: one with its bite and two with its claws.

Bite. Melee Weapon Attack: +10 to hit, reach 5 ft., one target. Hit: 32 (5d10 + 5) piercing damage.   Claw. Melee Weapon Attack: +10 to hit, reach 10 ft., one target. Hit: 15 (3d6 + 5) slashing damage.   Horror Nimbus (Recharge 5–6). The nalfeshnee magically emits scintillating, multicolored light. Each creature within 15 feet of the nalfeshnee that can see the light must succeed on a DC 15 Wisdom saving throw or be frightened for 1 minute. A creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success. If a creature's saving throw is successful or the effect ends for it, the creature is immune to the nalfeshnee's Horror Nimbus for the next 24 hours.   Teleport. The nalfeshnee magically teleports, along with any equipment it is wearing or carrying, up to 120 feet to an unoccupied space it can see.