Homebrew Yuan-Ti Constrictor Species Details

Humans Transformed

The people who became yuan-ti were one of the original human civilizations. Their society built great temples of stone and forged metal into armor, tools, and weapons. In their ceremonies they paid homage to the snake as the embodiment of the qualities they most appreciated. They developed a philosophy of separating emotion from intellectual pursuits, allowing them to focus their energy on personal advancement and expanding their territory. They believed themselves to be the most enlightened mortals in the world, and in their hubris they sought to become ever greater.

The serpent gods of the primordial world heeded the prayers of these people and hissed dark demands into their ears. The people tainted their souls by performing human sacrifices in the name of the gods, debased their flesh by cannibalizing their victims, and then performed a sorcerous ritual while writhing in pools filled with living snakes that enabled them to mix their flesh with that of serpents, becoming like the gods in body, thought, and emotion. Freed from the limitations of their human bodies, the yuan-ti used their new abilities to conquer new lands and expand their borders.

One Race, Many Forms

The bodies of all yuan-ti have a mix of humanlike and snakelike parts, but the proportion varies from individual to individual. After the initial metamorphosis of the humans, their society quickly coalesced into a caste system based on how complete a person’s transformation was. The vast majority of yuan-ti fall into three categories — abominations, malisons, and purebloods — while the mutated broodguards and exceedingly rare anathemas have their place in the hierarchy as well.

All yuan-ti can interbreed. Females usually lay clutches of eggs, which are stored in a common hatchery, although live births aren’t uncommon. A mating between yuan-ti of different types almost always produces eggs that hatch into yuan-ti of the weaker parent, so most choose partners of the same type in the interest of maintaining the strength of their personal bloodline.

The yuan-ti have abandoned their humanity and consider non-serpentine humanoids to be lesser creatures, barely more civilized than common apes. Although some purebloods are able to reproduce with humans, most are disgusted by the idea and would do so only if seduction is necessary for a pureblood to preserve a role as a confidant or advisor in human society. The very rare offspring of such a union are always purebloods, although they may appear fully human at birth and for several years afterward.

The yuan-ti know rituals that can transform an individual into a more powerful type. The cost and time required to perform the ritual is prohibitive, and as a result most yuan-ti never get the opportunity to undergo such a transformation. Every use of the ritual must be modified to suit the individual undergoing transformation, and requires rare herbs, exotic magical substances, snakes, and one or more humans to be sacrificed and eaten as part of the procedure.

Undercover Empire

The human civilization that gave rise to the yuan-ti was among the richest in the mortal world. It rapidly progressed in metalworking, using keen intellect and magic to discover the secrets of making steel. Its military shattered rival tribes and developed advanced tactics for fighting in forests and open plains.

The civilization grew into a cluster of allied city-states. Conquered neighbors were allowed to keep their leaders and culture so long as they paid tribute, swore allegiance to the victors, and incorporated their conquerors’ serpent gods into their religions. These victories sent a constant influx of food, ore, and slaves back to the home cities.

The wealth of the empire allowed the ruling elite plenty of time to focus on intellectual pursuits. These nobles turned to philosophy and prayer, offering gifts of magic and animal sacrifices to their serpent gods, paying homage to the perfection of the ophidian form. The serpent gods taught the humans how to take on aspects of the snake, but the cost of the change was high, requiring many sacrifices for each person to be transformed. Entire households of slaves in one city-state were killed and eaten to create the first yuan-ti, and once the news of how to perform these rituals spread to other leaders, the call for slaves to fuel the process increased. As the serpent gods began to demand more and more sacrifices, the yuan-ti stepped up their raids on bordering settlements to meet this need.

Calm long-view schemers, innate deceivers, and immune to poison — yuan-ti make perfect courtiers. And, worse for the rest of us, rulers.

— Elminster

The physical and magical prowess of the yuan-ti empire allowed the former humans to retain their holdings for several hundred years, until a combination of drought, attacks by enemies (including dragons and nagas), civil war, torpor among the serpent gods, and the development of iron weapons by the some of their conquered enemies finally loosened the yuan-ti’s hold over nearby lands. The serpent people withdrew to their fortified cities and underground temples, ceding the rest of their territory to their former minions. The yuan-ti crawled away and hid in a matter of weeks, all but disappearing from the world. Yuan-ti structures throughout the land were torn down to celebrate liberation from the snake-bodied oppressors, and within a few generations the yuan-ti were all but forgotten by the new humanoid civilizations.

For over a thousand years after their empire fell, the yuan-ti remained ensconced in their hidden strongholds, biding their time until they were ready to strike again. Today, with their numbers greatly depleted and their enemies much stronger than in ages past, the yuan-ti know they can’t resort to direct attacks in order to reclaim their rightful place in the world. Operating out of the subterranean ruins of their buildings in foreign lands, yuan-ti agents infiltrate enemy governments to discover weaknesses that their leaders can exploit. The yuan-ti look forward to the day when their empire rises again and spreads across the world like venom through the blood, as it once did.

Because their population is so small, the yuan-ti are aware they are vulnerable in open warfare. Instead, their current plans assume they will never rule outwardly in human society, so they gain influence by controlling enemy rulers — and those close to them — through blackmail, drugs, magic, and the subterfuge of disguised purebloods.

From Calimshan and the Lake of Steam out along the trade routes to cross the world, yuan-ti poisons and potent liquors are covertly sold. Beware! Some of the latter slowly and subtly bring imbibers under the sway of the next pureblood serpent-spy or yuan-ti malison to meet with them unlooked-for.

— Elminster

Emotionless Evil

During their ascension ages ago, the yuan-ti freed themselves from the yoke of their human emotions. Now they view the world from a pragmatic and dispassionate perspective. They understand emotional connections in a detached, intellectual way, and recognize that these feelings in others can be exploited through bribes, favors, or threats.

As creatures devoid of emotion, yuan-ti exhibit behavior and use tactics that exemplify that outlook (or lack of one). Whether in combat or in daily life, the following principles guide the yuan-ti in all they do.

Other Lives Are Cheap

Yuan-ti put little value on humanoid lives, even those of their own slaves and cultists. They would poison children to carry out a threat against their parents, or turn one person into a broodguard in order to show her family the consequence of resistance. They might refrain from provoking others’ feelings if doing so could adversely affect the yuan-ti’s plans, but they understand humanoid psychology well enough to know that they can get away with this casual disregard for life almost anytime.

Furthermore, in the yuan-ti caste system, a greater yuan-ti’s life is worth far more than a lesser one’s. Weaker citizens are expected to lay down their lives to protect their betters. Leaders rely on this zealotry in their plans, and although they don’t needlessly waste the lives of purebloods on futile actions, most strategies include a fallback option in which mobs of purebloods and slaves are thrown at opposing forces in the hope of allowing the malisons and abominations time to escape.

Survival First

Yuan-ti are likely to retreat or flee from conflict if they don’t believe they have a reasonable chance of success. This reaction isn’t out of cowardice, but practicality—yuan-ti value their own lives much too highly to risk them when the odds aren’t in their favor. A short retreat might be just the thing to reach a better tactical position, find allies, or to allow the yuan-ti the opportunity to study their opponents and implement better tactics. Any enemy who chases a group of fleeing yuan-ti might be on the victorious side of a rout or could be heading into a trap; if the enemy has been encountered before, it is likely that the yuan-ti have prepared a special ambush at the end of the pursuit.

Capture, Not Kill

The objective of the yuan-ti as a race is to conquer and enslave others; they don’t espouse the sort of evil that calls for them to butcher or eradicate all who oppose them. In keeping with their goal of domination, the yuan-ti would rather capture potentially useful opponents than kill them. They use many methods for capturing enemies, such as poisoning, knocking out an opponent instead of making a killing blow, throwing nets, using magic such as suggestion, or restraining them in the coils of a giant snake.

To force their compliance, enemies might be brainwashed, charmed, tortured, or transformed into broodguards. Those that prove intractable still have their uses, either as sacrifices to the gods or as food.

Depend on Deceit

Yuan-ti have no sense of honorable combat. They are naturally stealthy, and if they can sneak up on enemies, either in an ambush or to murder them in their sleep, the yuan-ti will do so—and they actually prefer these tactics to open warfare. Because abominations and malisons can change into the shapes of snakes, they can keep their presence hidden and get into places their normal forms couldn’t enter.

Their immunity to poison gives all yuan-ti a tactical advantage in dealing with other creatures. A pureblood serving as a food taster for a royal family could poison a meal and declare it “safe” after taking a bite.

 

Yuan-Ti Constrictor Traits

Your yuan-ti grappler character — called a Constrictor for short — has the following racial traits.

Grapple Superiority

Yuan-ti Constrictors learn from a young age that their different bodies can be used to their advantage. Their superior length and muscle definition allows for certain advantages when attempting to pin down opponents or to avoid being pinned down.

You have advantage on contested grapple rolls to avoid being grappled by enemies of your size or one size class higher. You also have advantage on any attack rolls you make against a creature you've grappled.

If you're grappled and manage to escape your foe by rolling 10 or more higher than them on the grapple contest you can choose to immediately attempt a grapple back at your foe as a bonus action.

Ability Score Increase

Increase your your Strength ability score by 2 and your Constitution ability score by 1.

Darkvision

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.

Constricting Attack

While actively grappling an opponent you can use your Attack action to perform a body-crushing constriction attack against your foe as you wrap your snake-like body around them and attempt to crush them. Treat this as an attack with a weapon you're proficient in. The attack does 1d6+STR bludgeoning damage. If you're capable of performing multiple attacks in a single round then you can only use this attack once.

If you maintain your grapple on your opponent and hit with this attack two rounds in a row, the target may begin to suffocate. The target rolls a Constitution saving throw after taking the second consecutive attack. If the target succeeds, nothing happens and the target is still grappled. If the target fails, then they are unable to breathe and may start to suffocate after a period of time.

A creature can hold its breath for a number of minutes equal to 1 + its Constitution modifier (minimum of 30 seconds).

When a creature runs out of breath or is choking, it can survive for a number of rounds equal to its Constitution modifier (minimum of 1 round). At the start of its next turn, it drops to 0 hit points and is dying, and it can't regain hit points or be stabilized until it can breathe again.

For example, a creature with a Constitution of 14 can hold its breath for 3 minutes. If it starts suffocating, it has 2 rounds to reach air before it drops to 0 hit points.

If you deal damage with the constriction attack while the target is already breathless, have them roll another constitution saving throw. On a failed save the target loses 1 minute of time before they start suffocating.

This attack requires concentration to maintain. As such, if you perform an attack other than the constricting attack against the target this immediately ends the effect and the target can breathe again. 

OR

If you take damage while in the midst of a constriction attack you must make a Concentration check to maintain your attack on your foe. If you fail the target can breathe again but is not released from your grapple.

Anything that would end your grapple also ends the constricting attack's effects.

 

Poison Resistance

Yuan-ti of all varieties take half damage from poison and poison damage.