Shoosuva

Large fiend (demon), chaotic evil

Armor Class 14 (natural armor)

Hit Points 110 (13d10+39)

Speed 40 ft.

Saving Throws Dex +4, Con +6, Wis +5

Damage Resistances cold, fire, lightning; bludgeoning, piercing, and slashing from nonmagical attacks

Damage Immunities poison

Condition Immunities charmed, frightened, poisoned

Senses darkvision 60 ft.

Languages Abyssal, Gnoll, telepathy 120 ft.

Challenge 8 (3,900 XP)

Rampage. When it reduces a creature to 0 hit points with a melee attack on its turn, the shoosuva can take a bonus action to move up to half its speed and make a bite attack.

Actions

Multiattack. The shoosuva makes two attacks: one with its bite and one with its tail stinger.

Bite. Melee Weapon Attack: +7 to hit, reach 5 ft, one target. Hit: 26 (4d10+4) piercing damage.

Tail Stinger. Melee Weapon Attack: +7 to hit, reach 15 ft, one creature. Hit: 13 (2d8+4) piercing damage, and the target must succeed on a DC 14 Constitution saving throw or become poisoned. While poisoned, the target is also paralyzed. The target can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.