The General

You have made a pact with Caeruleus Mall, the lord of the great armies of Hell. This being aims to conquer the lower planes of existence, and enlist the souls of powerful warriors into his glorious army. Mall desires to eventually corrupt the souls of all powerful mortals, and you are next. Even if you attempt to use his power for the greater good, Caeruleus Mall will wield you against Celestials and Demons in conflicts beyond your comprehension.

Expanded Spell List

The Fiend lets you choose from an expanded list of spells when you learn a warlock spell. The following spells are added to the warlock spell list for you.

Fiend Expanded Spells

Spell Level	Spells
1st	shield, command
2nd	blindness/deafness, branding smite
3rd	fireball, blink
4th	dominate beast, wall of fire
5th	modify memory, dominate person

Levy of the Blue Order

Starting at 1st level, you enlist and adopt a role in the fiendish army of Hell. Choose one of the following options.

• Phalanx. While you are wearing armor, you gain a +2 bonus to AC.
• Horde. You gain a +2 bonus to melee attack rolls.
• Artillery. When you roll a 1 or 2 on a damage die for a ranged spell attack, you can reroll the die and must use the new roll, even if the new roll is a 1 or a 2.

Companion-at-Arms

Starting at 6th level, you can call on your patron to influence the undead in your favor. You target a creature of type Undead, and it automatically fails the next Enchantment school spell you cast. If the creature is immune to being Charmed or Frightened (whichever is relevant to the spell cast), it makes a normal save instead of automatically succeeding.

Once you use this feature, you can’t use it again until you finish a short or long rest.

Knight-Captain of Acheron

Starting at 10th level, you can force an undead creature to permanently be your thrall. When you reduce a creature of type Undead to 0 hit points, you may choose to instead reanimate it and bend it to your will. The creature must be at most CR one fourth your warlock level rounded down. Your thrall will obey your every verbal command, to the best of its ability, and disintegrates into dust forever if it reaches 0 hit points. You may only control one thrall in this way at a time. When you use this ability, the undead thrall's hit points reset to maximum, and any lingering effects on it end.

Call on the Fire

Starting at 14th level, as an action, you can use this feature to briefly call on the power of the Blue Flame. You conjure blue fire in a 30-foot cone. Each creature in that area must make a Dexterity saving throw, taking 16d6 fire damage on a failed save, or half as much damage on a successful one.

Flammable objects that are not being worn or carried in that area are instantly incinerated. Additionally, metal objects that are not being worn or carried in that area are melted, and the surface of stone turns to glass. 

Once you use this feature, you can’t use it again until after 1d4 long rests.