Yuan-ti Abomination

Large Monstrous Humanoid
Hit Dice: 9d8+27 (67 hp)
Initiative: +5
Speed: 30 ft. (6 squares), climb 20 ft., swim 20 ft.
Armor Class: 22 (–1 size, +1 Dex, +10 natural, +2 masterwork heavy shield), touch 10, flat-footed 21
Base Attack/Grapple: +9/+17
Attack: Masterwork scimitar +13 melee (1d8+4/18–20) or masterwork composite longbow (+4 Str bonus) +10 ranged (2d6+4/×3)
Full Attack: Masterwork scimitar +13/+8 melee (1d8+4/18–20) and bite +7 melee (2d6+3 plus poison); or masterwork composite longbow (+4 Str bonus) +10/+5 ranged (2d6+4/×3)
Space/Reach: 10 ft./10 ft.
Special Attacks: Aversion, constrict 1d6+6, improved grab, poison, produce acid, spell-like abilities
Special Qualities: Alternate form, chameleon power, darkvision 60 ft., detect poison, scent, spell resistance 18
Saves: Fort +6, Ref +7, Will +11
Abilities: Str 19, Dex 13, Con 17, Int 20, Wis 20, Cha 18
Skills: Concentration +15, Craft or Knowledge (any two) +17, Hide +8*, Listen +19, Move Silently +12, Spot +19
Feats: AlertnessB, Blind-FightB, Combat Expertise, Dodge, Improved Initiative, Mobility
Environment: Warm forests
Organization: Solitary, pair, gang (3–4), troupe (2–13 purebloods, 2–5 halfbloods, and 2–4 abominations), or tribe (20–160 purebloods, 10–80 halfbloods, and 10–40 abominations)
Challenge Rating: 7
Treasure: Double standard
Alignment: Usually chaotic evil
Advancement: By character class
Level Adjustment: +7
This creature looks like a big serpent, except that its eyes betray a baleful intelligence and it has two burly, humanoid arms.
Yuan-ti abominations are monstrous snakes with humanlike arms. The snakelike features of an abomination may reflect any of a variety of venomous snakes, so an abomination may have a black mamba’s glossy scales or a viper’s wedge-shaped head. These features are usually consistent within a single troupe of yuan-ti, and often mark a troupe’s status within a tribe.
A yuan-ti abomination is 8 to 12 feet long and weighs 200 to 300 pounds.


Abominations are the masterminds of yuan-ti society, and urge their lesser kin into battle from the rear. While their underlings fight, the abominations watch the proceedings carefully, identifying the most dangerous foes and their most worrisome abilities, then try to neutralize those enemies with their extensive spell-like and psionic abilities.
Aversion (Sp): A yuan-ti abomination can psionically create a compulsion effect targeting one creature within 30 feet. The target must succeed on a DC 22 Will save or gain an aversion to snakes for 10 minutes. Affected creatures must stay at least 20 feet away from any snake or yuanti, alive or dead; if already within 20 feet, they move away. A subject unable to move away, or one attacked by snakes or yuan-ti, is overcome with revulsion. This revulsion reduces the creature’s Dexterity score by 4 points until the effect wears off or the subject is no longer within 20 feet of a snake or yuan-ti. This ability is otherwise similar to antipathy as the spell (caster level 16th). The save DC is Charisma-based.
Constrict (Ex): An abomination deals 1d6+6 points of damage with a successful grapple check.
Improved Grab (Ex): To use this ability, an abomination must hit a Large or smaller creature with its bite attack. It can then attempt to start a grapple as a free action without provoking an attack of opportunity. If it wins the grapple check, it establishes a hold and can constrict.
Poison (Ex): Injury, Fortitude DC 17, initial and secondary damage 1d6 Con. The save DC is Constitution-based.
Produce Acid (Sp): An abomination has the psionic ability to exude acid from its body, dealing 3d6 points of acid damage to the next creature it touches, including a creature hit by its bite attack. If the yuan-ti is grappling, constricting, or pinning a foe when it uses this power, its grasp deals 5d6 points of acid damage. The acid becomes inert when it leaves the yuan-ti’s body, and the yuan-ti is immune to its effects.
Spell-Like Abilities: At will—animal trance (DC 16), entangle
(DC 15); 3/day—deeper darkness, neutralize poison (DC 18), suggestion
(DC 17); 1/day—baleful polymorph (DC 19; into snake form only), fear (DC 18). Caster level 10th. The save DCs are Charisma-based.
Chameleon Power (Sp): A yuan-ti abomination can psionically change the coloration of itself and its equipment to match its surroundings, granting it a +10 circumstance bonus on Hide checks.
Skills: A yuan-ti abomination can always choose to take 10 on a Climb checks, even if rushed or threatened.
A yuan-ti abomination has a +8 racial bonus on any Swim check to perform some special action or avoid a hazard. It can always choose to take 10 on a Swim check, even if distracted or endangered. It can use the run action while swimming, provided it swims in a straight line.
*Yuan-ti abominations using chameleon power gain a +10 circumstance bonus on Hide checks.

Source: Monster Manual

In My Eberron

Yuan-ti are the practitioners of the Eldritch Arts from Xen'drik. Lungtai has designed these brutes to lead the charge of the Yuan-ti, as well as being a battlefield juggernaut.

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