The Fiend

You have made a pact with a fiend from the lower planes of existence, a being whose aims are evil, even if you strive against those aims. Such beings desire the corruption or destruction of all things, ultimately including you. Fiends powerful enough to forge a pact include demon lords, archdevils, pit fiends and balors that are especially mighty; and ultroloths and other lords of the yugoloths.

Fiend Patrons

Archdevils

Karophik, the Hoarder

Patron Alignment: Lawful Evil
Patron Description: Karophik is a hunched pale-gray skinned archdevil with long spindly arms. He does all of his contracts through the aid of lesser devils, and his pacts are always made to obtain souls - though rarely the soul of the one who makes the pact. Karophik is an oddity among devils as he primarily seeks out good people who are upset with how the world works and gives them patronage on the condition that they "clean" the world by removing evil creatures and damning their souls to end up in his possession.
Patron Goals: Karophik seeks to have good people collect souls for him directly and convinces them that they are doing good for themselves and their family by doing so. Unfortunately for these warlocks, this ceaseless killing and damning of souls often has a painful effect on their own immortal soul, sometimes landing them in Karophik's grasp as well.
Patron's Wrath Damage Types: Cold, Force

Demon Lords

Dogob, the Reveler

Patron Alignment: Chaotic Evil
Patron Description: Dogob is a massive blue-green skinned satyr-like creature with two sets of horns and arms that each split off into 4 forearms at the elbow. The demon lord is claimed to be the original creator of the satyr people and the reason for their lecherous and destructive tendencies.
Patron Goals: Dogob wishes to throw the multiverse into true chaos, the word of law having absolutely no hold on anyone. He spreads his will through the actions of the drunk, drugged, and broken-hearted, having them take actions they would never consider in the right mind. Those who worship Dogob give into their wretched vices, taking advantage of others and each other in every way possible.
Patron's Wrath Damage Types: Poison, Psychic

Udu, the Corruptor

Patron Alignment: Chaotic Evil
Patron Description: Udu is a powerful cerebrilith demon that has gained power through mental domination over other demons and mortal races alike. The massive creature rules over the 922nd layer of the Abyss, letting its psionic presence leak out to other layers to corrupt the denizens there.
Patron Goals: Udu seeks total corruption and enslavement of other demonkind, establishing himself as the true king of demons. He makes pacts with mortals who seek similar means, claiming their souls upon death as payment to grow his strength.
Patron's Wrath Damage Types: Fire, Force, Psychic

Varix, the Whisper of the Mind

Patron Alignment: Chaotic Evil
Patron Description: Varix is a minor demon lord who embodies the intrusive thoughts that dwell in the minds of mortals, pushing them to commit normally unthinkable deeds, ruling over the 495th layer of the abyss. She appears as a deep red skinned humanoid fiend with horns curling back over her head sprouting from the sides of her skull. Her legs end in goat hooves and she lacks any form of a tail. She has 6 eyes, each of them with a different coloration and type of pupil, ranging from the slit eye of a cat to the pupil-less eyes of a fish and to the double-pupiled eye of a goat.
Patron Goals: Varix seeks to corrupt mortal minds and her influence is largely felt as passing sadistic or self-destructive urges. She will occasionally grant patronage to mortals who are insane or seek to break the minds of other creatures, but pacts with the demon lord are rare.
Patron's Wrath Damage Types: Force, Psychic

Xiegharrin'ildrairth

Patron Alignment: Chaotic Evil
Patron Description: Xiegharrin'ildrairth is a massive red chaotic archdragon wyrm who has gained demonic power through multiple pacts and the defeat and consumption of numerous other powerful demons. She dwells within the 917th layer, holding control over it with an iron grip. Her scales have developed an inky blackness at the tips of them and they appear to shift, crack, and repair themselves at random intervals all over her body while her voice constantly changes in tone and pitch from high-pitched squeaks to a rumbling bass.
Patron Goals: The powerful chaotic archdragon seeks only to spread chaos and suffering, caring little for gathering souls in order to create new demons under her control. Her warlocks are gifted with a constantly shifting scale from her body through which she is able to see, and they must create enough chaos and pain to meet her expectations.
Patron's Wrath Damage Types: Fire, Necrotic

Patron Spells

You gain patron spells at the Warlock levels listed.

Warlock Level	Spells
1st	burning hands, command
3rd	blindness/deafness, scorching ray
5th	fireball, stinking cloud
7th	fire shield, wall of fire
9th	flame strike, hallow

Dark One's Blessing

Starting at 1st level, when you reduce a hostile creature to 0 hit points, you gain temporary hit points equal to your Charisma modifier + your warlock level (minimum of 1).

Dark One's Own Luck

Starting at 6th level, you can call on your patron to alter fate in your favor. When you make an ability check or a saving throw, you can use this feature to add a d10 to your roll. You can do so after seeing the initial roll but before any of the roll's effects occur.
Once you use this feature, you can't use it again until you finish a short or long rest.

Fiendish Resilience

Starting at 10th level, you can choose one damage type when you finish a short or long rest. You gain resistance to that damage type until you choose a different one with this feature. Damage from magical weapons or silver weapons ignores this resistance.

Hurl Through Hell

Starting at 14th level, when you hit a creature with an attack, you can use this feature to instantly transport the target through the lower planes. The creature disappears and hurtles through a nightmare landscape.
At the end of your next turn, the target returns to the space it previously occupied, or the nearest unoccupied space. If the target is not a fiend, it takes 10d10 psychic damage as it reels from its horrific experience.
Once you use this feature, you can't use it again until you finish a long rest.