Armor Class 19 (natural armor)
Hit Points 142 (15d10 + 60)
Speed 40 ft., fly 40 ft.
Saving Throws INT +5, WIS +6, CHA +7
Skills Deception +7, Insight +6
Damage Resistances cold, [object Object]
Damage Immunities fire, poison
Condition Immunities poisoned
Senses darkvision 120 ft., passive Perception 12
Languages Infernal, telepathy 120 ft.
Challenge 9
Devil's Sight. Magical darkness doesn't impede the devil's darkvision.
Magic Resistance. The devil has advantage on saving throws against spells and other magical effects.
Multiattack. The devil makes three attacks: two with its claws and one with its sting.
Claw. Melee Weapon Attack: +8 to hit, reach 10 ft., one target. Hit: 8 (1d8 + 4) slashing damage.
Sting. Melee Weapon Attack: +8 to hit, reach 10 ft., one target. Hit: 13 (2d8 + 4) piercing damage plus 17 (5d6) poison damage, and the target must succeed on a DC 14 Constitution saving throw or become poisoned 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.
Monster Manual (2014), p. 71