Yuan-ti Abomination
Monster Manual (2025) p. 345
- Size
- Large
- Type
- monstrosity
- Alignment
- neutral evil
- AC
- 15
- Initiative
- 6
- Hit Points
- 127 (15d10+45)
- Speed
- walk 40 ft., climb 30 ft.
- Skills
- Stealth +6, Perception +7
- Immunities
- poison
- Condition Immunities
- poisoned
- Senses
- darkvision 60 ft.
- Passive Perception
- 17
- Languages
- Abyssal, Common, Draconic
- Challenge
- 7
- Lineage
- Yuan-ti
- Environment
- desert, forest, swamp, urban
Traits
Proficiency Bonus
+3
Treasure
Relics: The monster's treasure hoard features magic items with the noted theme. The Dungeon Master's Guide details treasure hoards appropriate for each theme.
Magic Resistance
The yuan-ti has Advantage on saving throws against spells and other magical effects.
Actions
Multiattack
The yuan-ti makes two Bite attacks, and it can use Spellcasting to cast Suggestion if available.
Bite
Melee Attack Roll: +7, reach 5 ft. Hit: 11 (2d6 + 4) Piercing damage plus 10 (3d6) Poison damage.
Constrict
Strength Saving Throw: DC 15, one Large or smaller creature within 5 feet. Failure: 28 (7d6 + 4) Bludgeoning damage. The target has the Grappled condition (escape DC 14), and it has the Restrained condition until the grapple ends. Success: Half damage only.
Poison Spray (Recharge 5-6)
Constitution Saving Throw: DC 14, each creature in a 30-foot Cone. Failure: 21 (6d6) Poison damage, and the target has the Poisoned condition until the end of the yuan-ti's next turn. While Poisoned, the target has the Blinded condition. Success: Half damage only.
recharge
D5
Spellcasting (Yuan-ti Form Only)
The yuan-ti casts one of the following spells, requiring no Material components and using Wisdom as the spellcasting ability (spell save DC 15):
- At will: Animal Friendship (snakes only)
- 3/day: Suggestion
Shape-Shift (Bonus Action)
The yuan-ti shape-shifts into a Large snake or returns to its true form. If it dies, it stays in its current form. The yuan-ti's game statistics are the same in each form, except where noted. Any equipment it is wearing or carrying isn't transformed.
Spells
Animal Friendship [5.5e], Suggestion [5.5e]
Other data
description
Exploiting pacts with sinister supernatural forces, yuan-ti bargain away their humanity for the lethality and predatory deviousness of serpents. From hidden bastions, they manipulate rulers and the wealthy, seeking to control the world. Many yuan-ti possess venomous magic, which often manifests as fangs or striking serpents. Yuan-ti have humanlike forms with a variety of horrifying serpentine transformations. Some have a scattering of reptilian scales, while others are giants that are more snake than human. Typically, the more snakelike yuan-ti are, the greater esteem they hold among their kind. Yuan-ti might gain their reptilian features through dangerous supernatural rites. Roll on or choose a result from the Yuan-ti Transformations table to inspire how yuan-ti obtain their serpentine aspects.
Yuan-ti Transformations:
| 1d6 | A Yuan-ti Gained Its Snake Features From... |
|---|---|
| 1 | Bargaining parts of its soul to a pantheon of serpentine demigods. |
| 2 | A curse laid on its people in the distant past. |
| 3 | The dream-venom of Merrshaulk, a slumbering snake god. |
| 4 | Experiments by spirit nagas or other yuan-ti. |
| 5 | A ritual involving the skin of a fiendish snake. |
| 6 | Trials to excise its "weak" human parts. |
Yuan-ti Abomination: Yuan-ti abominations have traded away nearly all evidence of their humanity, coming to resemble giant, upright serpents with scaly arms and hands. In battle, they relish opportunities to crush foes in their powerful coils or strike with their venomous fangs. These abominations can also shape-shift into snakes. In these forms, abominations are indistinguishable from normal serpents. The true threat of yuan-ti abominations stems not from their physical might but from their cunning. These masterminds often lead cultlike cells of other yuan-ti and direct them in enacting elaborate conspiracies. Abominations avoid jeopardizing themselves, typically scheming from hidden bastions where they're protected by yuan-ti and serpent guardians. These coldhearted leaders have a unique understanding of the supernatural forces that grant yuan-ti their powers, and they usually have insidious magical traps and contingencies at their disposal.