Multiattack

The devil makes two Fork attacks and one Tail attack, or it makes three Hurl Flame attacks.

Fork

_Melee Weapon Attack:_ +10 to hit, reach 10 ft., one target. _Hit:_ 19 (3d8+6) piercing damage.

Tail

_Melee Weapon Attack:_ +10 to hit, reach 10 ft., one target. _Hit:_ 22 (3d10+6) piercing damage. If the target is a creature other than a Construct or Undead, it must succeed on a DC 17 CON save or lose 10 (3d6) HP at the start of each of its turns due to an infernal wound. Each time the devil hits the wounded target with this attack, the damage dealt by the wound increases by 10 (3d6). Any creature can take an action to stanch the wound with a successful DC 12 WIS (Medicine) check. The wound also closes if the target receives magical healing.

Hurl Flame

_Ranged Spell Attack:_ +7 to hit, range 150 ft., one target. _Hit:_ 20 (5d6+3) fire damage. If the target is a flammable object that isn't being worn or carried, it also catches fire.