Yuan-Demon (5e Race)

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"A vile and vicious breed of evil creatures from evil heritages. Yuan-Ti and Demons... why?"

Physical Description[edit]

Kobold, Forgotten Realms Wiki [1]

While most physical characteristics differ between Yuan-Demons depending on the nature of their demonic lineage, all share a few basic traits: Yuan-Demons are bipedal and roughly humanoid in appearance, and they are scary to look at. Their facial features are a mix of both their serpentine Yuan-Ti heritage, and their aberrant demonic ancestry to create a horrifying visage: For example, a more serpentine Yuan-Demon may retain the snake-like face of their people, but also possess the blackened skin and curved forehead-mounted horn of a Babau. A Fiendish Yuan-Demon may have dark purple skin, with the reptilian, slit eyes of the snake. The more mundane Yuan-Demons are sometimes mistaken for Tieflings or Yuan-Ti purebloods; however, Yuan-Demon traits tend to be much more gruesome and bizarre than their infernal cousins. Other examples of demonic traits include sharpened claws, an exterior skull, gray, black, or green skin, devil horns, bony protrusions, or a scaly tail.


Yuan-Demons are horrid creatures, the progeny of one Yuan-Ti Pureblood and one Demon parent. Distrust against these beings usually serves as a means of self-preservation for most people, rather than prejudice. Yuan-Demons are, by nature, cruel, vicious beings, with both sides of their bloodline corrupting everything they do. While a Yuan-Demon is all too happy to kill, maim, and destroy for their insatiable desire for gore and blood, working with a team of adventurers requires a bit more coercion.


The Yuan-Ti are creatures without honor or remorse. Fiends are typically not any better. This, combined with their horrid visage maked Yuan-Demons unwelcome nearly anywhere. On the mortal planes, Yuan-Demons tend to integrate with already established communities in which their parents live. If too outlandish appearing, or if the natives are superstitious enough, they can be exiled. Pure Yuan-Demon communities are few and lacking in structural economies, although they can exist. In the Abyss, however, Yuan-Demons fit in quite well with the savage nature of the realm. They tend to stick close to parents, either in cooperation or in service. Yuan-Demons traveling alone in the Abyss tend to naturally gravitate towards a Layer holding their own kind.

Yuan-Demon Names[edit]

Yuan-Demons often try to be proud of one of their heritages and will name themselves either partially or entirely after other Demon or Yuan-Ti species. Other Yuan-Demons will base their names on the Abyssal root words for evil or immoral concepts.

Male: Abraxes, Forneus, Cthugha, Kazri, Yochlo, Kastig, Maurez, Muhill, Oki, Seztei, Thitsozh, Mastlallu

Female: Kali, Zhah, Bali Raj, Nyogtha, Bebeli, Orla, Maril, Shizu, Teshiss, Nolu, Uhtleya, Nazhohi, Hushal

Yuan-Demon Traits[edit]

Vile, half-demon hybrids spawned from an Abyssal parent.
Ability Score Increase. Your Constitution increases by 2.
Age. Yuan-Demons mature at the same rate as normal humans, but their demonic bloodline allows them to live indefinitely well over 1,000 years.
Alignment. Yuan-Ti and Demons are innately evil, and typically chaotic. Yuan-Demons of a good or lawful alignment must constantly battle against their natural urges.
Size. Yuan-Demons range in size, from just-taller-than-a-dwarf, to well over 8' tall. Your size is Medium.
Speed. Your base walking speed is 30 feet.
Darkvision. Thanks to your demonic heritage. You can see in dim light within 60 feet of you as if it were bright light, and in darkness as if it were dim light. You can't discern color in darkness, only shades of gray. Due to their evil natures, some Yuan-Demons see shades of red or green as opposed to shades of gray.
Demonic and Serpentine Resistance. You have resistance to poison damage and have advantage on saving throws against being poisoned.
Unholy Weakness. Due to your abyssal nature, you are vulnerable to radiant damage.
Natural Armor. Your skin is scaled and hardened due to your lineage. While unarmored, your Armor Class is equal to 13 + your Dexterity modifier.
Demon Blood. You have a demonic lineage. Your creature type is fiend and humanoid.
Languages. You can speak, read, and write Common, Abyssal, and one other language of your choice.

Bloodline Subraces[edit]

You may choose a specific bloodline you descend from.

Serpentanic Bloodline[edit]

You are more in-touch with your reptilian side.

Ability Score Increase. Your Charisma score increases by 2, and your Intelligence score increases by 1.
Serpentine Empathy. You can communicate simple ideas with snakes.
Serpent Reflex. Any grapples made against you that are not on rough terrain are done so with disadvantage.
Innate Spellcasting. You know the Poison Spray cantrip. You can cast Animal Friendship an unlimited number of times with this trait, but you can target only snakes with it. Starting at 3rd level, you can also cast Suggestion with this trait. Once you cast it, you can't do so again until you finish a long rest. Charisma is your spellcasting ability for these spells.
No Demon for me. Your type is only Humanoid. You lose the Unholy Weakness trait.

Extaminaar Bloodline[edit]

The blood of your cultist ancestors surges within you. You can feel it writhing, reaching through your skin...

Ability Score Increase. Your Constitution score increases by 1, and your Intelligence score increases by 2.
One with the Blood. Once per day you may transform into any snake (but not Flying) for up to 3 minutes that is Half you maximum hit points plus your constitution modifier, but you keep own Constitution, mental ability scores, and Hit Dice. at lvl 5 you can cast this up to twice per day and at lvl 10 you can use both charges and transform into any snake that is double you maximum hit points plus your constitution modifier, after doing this you may not use this for any transform for 2 weeks, at lvl 15 you gain 1 more charge to your transformations, you can now transform into a flying snake, and you can stay transformed for up to an hour. At lvl 20 you can spend your 3 charges to transform into any snake that is double you maximum hit points plus your constitution modifier and roll a 1d3 and multiply the stats of the snake you transform into and you now gain that creature's full set of stats.
The Old Ways. You can decide before killing a creature to sacrifice it to a Yuan-Ti god of your choosing. If you are successful in single-handedly killing the creature, you may use the divination spell or gain advantage on all attack and damage rolls. The DM may choose a length or roll 1D10 to determine the rounds this lasts. Every 5 levels, you may ask the DM an additional question or the duration increases by 1D10.
Tongue Of Ancient Lands. You can speak, read and write Draconic instead of Abyssal.

Tiefling Bloodline[edit]

You seem less reptilian, but look a lot more like a Tiefling. I wonder if you're related.

Tiefling Traits. You may choose one of the Tiefling Subraces as opposed to the bloodlines on this page.

Obyrith Bloodline[edit]

Yuan-Demons with an Obyrinth bloodline are not descended from actual demons, but rather from aberrations, Great Old ones, and other monsters so hideous as to be unimaginable.

Ability Score Increase. Your Intelligence score increases by 1 and your Strength score increases by 1.
Tongue Of Ancient Lands. You can speak, read and write Deep Speech instead of Abyssal.
Aberrant Ancestry. You have advantage on all Intelligence and Wisdom saving throws against magic.
Abyssal Endurance. When you are reduced to 0 hit points but not killed outright, you can drop to 1 hit point instead. You can’t use this feature again until you finish a long rest.
Ability Score Increase. Your Strength score and Intelligence score increases by 1.
Savage Attacks. When you score a critical hit with a melee weapon attack, you can roll one of the weapon’s damage dice one additional time and add it to the extra damage of the critical hit.

Random Height and Weight[edit]

Table: Yuan-Demon Random Height and Weight
Base Height Height Modifier Base Weight Weight Modifier
4'9" +2d10 inches 120 lb. +2d4 lbs.

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