Medium Fiend (Yugoloth), typically Neutral EvilArmor Class 15
Hit Points 135 (18d8 + 54)
Speed 20 ft., swim 40 ft.STR
12 (+1)DEX
21 (+5)CON
16 (+3)INT
19 (+4)WIS
10 (+0)CHA
14 (+2)Skills Insight +4, Perception +4
Damage Vulnerabilities fire
Damage Resistances cold, lightning; bludgeoning, piercing, and slashing from nonmagical attacks
Damage Immunities acid, poison
Condition Immunities poisoned
Senses blindsight 60 ft., darkvision 60 ft., passive Perception 14
Languages Abyssal, Infernal, telepathy 60 ft.
Challenge 9 (5000 XP) Proficiency Bonus +4