Yuan-ti speak their own language, plus Common, Draconic, and Abyssal.

Yuan-Ti Halfblood Features

Halfblood Features (Ex): Yuanti halfbloods have certain snake-like features to their anatomy. Roll twice on the following list, ignoring duplicate or contradictory results:

• 1 - Snake head: Bite damage 1d6 and poison (save DC 14; initial and secondary damage 1d6 temporary Constitution)
• 2 - Flexible torso: +1 racial bonus to Reflex saves
• 3 - No legs, snake tail: Speed 20 ft., climb 15 ft., swim 15 ft; can constrict Medium-size or smaller creatures for 1d6+3 damage
• 4 - Snakes instead of arms: Gains 2 bite attacks (1d4 arms damage and poison as above)
• 5 - Scales instead of skin: +4 natural armor
• 6 - Legs and snake tail: Speed 30 ft., swim 15 ft.; can constrict Small or smaller creatures for 1d4+3 damage

Spell-Like Abilities: (If human-headed) 1/day-animal trance, cause fear, deeper darkness, entangle, neutralize poison, suggestion, and polymorph other. These abilities are as the spells cast by an 8th-level sorcerer (save DC 13 + spell level).

Psionics (Sp): All yuan-ti can produce the following effects at will:

• Detect Poison: As the spell cast by a 6th-level sorcerer.
• Alternate Form: The yuan-ti can assume the form of a Tiny to Large viper. This ability is similar to a shapchange spell cast by a 19th-level sorcerer but allows only viper forms. If the yuan-ti has a poisonous bite of its own, it uses its own or the viper's poison, whichever is more potent.
• Chameleon Power: The yuan-ti can change the coloration of itself and its equipment to match its surroundings.
• Produce Acid: The yuan-ti can exude acid from its body, dealing 1d6 points of damage to anything it touches. The acid becomes inert when it leaves the yuan-ti's body.
• Aversion: The yuan-ti creates a compulsion effect targeting one creature within 30 feet. The subject must succeed at a Will save (DC 17) or gain an aversion to snakes for 10 minutes. Affected subjects must stay at least 20 feet from any snake or yuan-ti, alive or dead; if already within 20 feet, they move away. A subject can overcome the compulsion by succeeding at another DC 17 Will save, but still suffers deep anxiety. This causes a -4 reduction to Dexterity 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 cast by a 16th-level sorcerer.

Poison (Ex): Halfbloods and abominations with snake heads only-bite, Fortitude save (DC 17); initial and secondary damage 1d6 temporary Constitution.

Skills: *Yuan-ti using chameleon power receive a +8 circumstance bonus to Hide checks.

Yuan-ti Halfblood Characters

The favored class for yuan-ti halfbloods is ranger. Yuan-ti clerics can choose any two of the following domains: Chaos, Evil, Destruction, and Plant.