Siihuassasho'iosh of the Third Circle

Yuan-Ti Halfblood (Human Head, Scales instead of skin, Snake Tail, No legs)
Medium Monstrous Humanoid
5th Level Cleric/ 3rd level Yuan-Ti Cultist (8th level caster)

Hit Dice 12d8+3d4+15 (76 hit points)
Initiative: +5 (+1 Dex, +4 Improved initiative)
Speed 30 ft. climb 20 ft., swim 20 ft.
AC 20 (+1 Dex, +4 Natural, +5 Armor)
Attacks: Masterwork Scimitar +15/+10/+5 melee; or masterwork mighty composite longbow (+2) with masterwork arrows +15/+10/+5 ranged
Damage: Masterwork Scimitar 1d6+2; or masterwork mighty composite longbow (+2) 1d8+2
Face/Reach: 5 ft. by 5 ft. / 5 ft.
Special Attacks: Spell-Like Abilities, Psionics, Constrict 1d6+3, Spells, Sticks to Snakes, Snake Darts
Special Qualities: SR 16, Suffering Prestige Domain, Third Circle
Saves: Fort +10, Ref +8 [+10 while armor worn], Will +18
Abilities: Str 15, Dex 13, Con 13, Int 18, Wis 24, Cha 20.
Skills: Concentration +16, Craft (Alchemy) +17, Diplomacy +8*, Knowledge (Religion) +21, Knowledge (Nature) +7, Hide +8*, Listen +15, Perform (Chant) +12, Spellcraft +12, Spot +18
Feats: Alertness, Blind-fight, Brew Potion, Expertise, Improved initiative, Sacrificial Mastery, Dark Speech, Empower Spell Like Abilities [Combat Reflexes while armor worn]

Climate/Terrain: Warm forest and underground
Challenge Rating 13
Alignment: Chaotic Evil
Possessions: Sacrificial Knife, Serpent Armor, Dark Altar Stone

 Siihuassasho'iosh works as a sacrificial attendant in the temples of Merrshaulk.  He looks forward to the day he is made a member of the Second Circle and recreated into a human-headed abomination (although he worries about the loss of his arms).  He looks human from the waist up, although his skin is scaled and leathery.  From the waist down he all snake, with copper coloring and dark diamond-shaped areas down his back.  He is muscular, and wears serpent armor when going into combat.  Otherwise he wears clerical vestments.  He is bald, for he shaves his head ritually every day.  His voice is pleasant, so he is often given the role of lead chanter in many of the ceremonies he participates in.  He enjoys causing chaos and destruction, and often brews potions laced with the addictive white resin to be sold in human communities.  He is enamored of the jungle, and likes to walk among the trees whenever he is free from duty.

In combat he likes to cast Deeper Darkness first, followed by Divine Favor.  He will then attack from the protection of the darkness.

Spell-like Abilities: 2/day - Animal Trance, Cause Fear, Deeper Darkness, Entangle, Neutralize poison, Suggestion, Polymorph Other. (8th Level Sorcerer DC15+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 shapechange spell cast by a 19th-level sorcerer but allows only viper forms. A yuan-ti in alternate form uses its most powerful poison attack if it has two.
            Chameleon Power: Yuan-ti can change their coloration to match their 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 19) 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 19 Will save, but still suffers deep anxiety. This caused a -4 reduction to Dex 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.

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

Constrict (Ex): A halfblood deals 1d6+3 points of damage with a successful grapple check against medium or smaller creatures.

Sticks to Snakes (Sp): Once per day, Siihuassasho'iosh can transform 1½d4+12 sticks (arrows, torches, staffs, etc) into snakes with this empowered ability.  See Savage Species, page 98 for more details.

Snake Darts (Sp): Siishilsenessin has ritual tattooing of snakes on his arms.  Three times per day as a standard action, he can launch these tattoos against opponents of medium range, hitting automatically, dealing 2d6 points of damage, plus poison (Fort DC 14, 1d6 Con damage primary and secondary damage).  Twice per day, this ability can be empowered to increase all damage by one half.

Third Circle: Siihuassasho'iosh has advanced to this rank in service to Merrshaulk.  When dealing with Yuan-Ti, Siihuassasho'iosh gets a +4 circumstance bonus on Diplomacy and Intimidate checks.  He also gets a +4 circumstance bonus on Knowledge (Religion) checks.

Spells Prepared: 6/6/4/3/2 (Save DC 17+spell level)

0 level – Create Water, Detect Magic, Mending, Read Magic, Guidance, Light
1st level – Bane, Bless, Command, Comprehend Languages, Random Action, Divine Favor (+4 attack, +4 damage)
2nd level – Enthrall, Addiction, Animal Messenger, Hold Person
3rd level – Deeper Darkness, Contagion, Dispel Magic
4th level – Cure Critical Wounds (40 points cured), Stop Heart (subject drops to -8 hp immediately)

Domain Spells Prepared

1st – Entangle
2nd –Endurance
3rd –Contagion
4th – Control Plants

Domain Powers:
            Plant:
Rebuke or command plant creatures as an evil cleric rebukes or commands undead 6/day.  Knowledge (nature) is also a class skill.
            Destruction:
 He gains the smite power, the supernatural ability to make a single attack with a +4 attack bonus and a damage bonus equal to his cleric level if he hits.  He must declare the smite before making the attack.  It is usable once per day.
            Suffering: He can use a pain touch once per day, making a melee touch attack against a living creature, which bestows on that creature a -2 enhancement penalty to strength and Dexterity for 1 minute on a successful attack.  This spell like ability does not affect creatures immune to critical hits.