Warlock of the Fiend

Medium humanoid (any race), any alignment

Armor Class 12 (15 with mage armor)

Hit Points 78 (12d8+24)

Speed 30 ft.

Saving Throws Wis +4, Cha +7

Skills Arcana +4, Deception +7, Persuasion +7, Religion +4

Damage Resistances slashing damage from nonmagical attacks not made with silvered weapons

Senses darkvision 60 ft.

Languages any two languages (usually Abyssal or Infernal)

Challenge 7 (2,900 XP)

Innate Spellcasting. The warlock’s innate spellcasting ability is Charisma. It can innately cast the following spells (spell save DC 15), requiring no material components:

At will: alter self, false life, levitate (self only), mage armor (self only), silent image

1/day each: feeblemind, finger of death, plane shift

Spellcasting. The warlock is a l7th-level spellcaster. Its spellcasting ability is Charisma (spell save DC 15, +7 to hit with spell attacks). It regains its expended spell slots when it finishes a short or long rest. It knows the following warlock spells:

Cantrips (at will): eldritch blast, fire bolt, friends, mage hand, minor illusion, prestidigitation, shocking grasp

1st-5th level (4 5th-level slots): banishment, burning hands, flame strike, hellish rebuke, magic circle, scorching ray, scrying, stinking cloud, suggestion, wall of fire

Dark One’s Own Luck (Recharges after a Short or Long Rest). When the warlock makes an ability check or saving throw, it can add a d10 to the roll. It can do this after the roll is made but before any of the roll’s effects occur.

Actions

Mace. Melee Weapon Attack: +3 to hit, reach 5 ft., one target. Hit: 3 (1d6) bludgeoning damage plus 10 (3d6) fire damage.