Acolyte of the Skin

Acolytes of the skin seek to gain power by replacing their skin with that of a demon's.
==== Requirements ====
Alignment: Any nongood
Skills: Knowledge (the planes) 3 ranks
Spells or Spell-Like Abilities: Caster level 5th.
Special: Must have made peaceful contact with a summoned evil outsider.
Special: Must undergo the Ritual of Bonding (see above).
==== Hit die ====
d8
==== Skill points ====
2 + Int
==== Class Features ====
Weapon and Armor Proficiency: Acolytes of the skin gain no proficiency with any weapon or armor.
Spells per Day/Spells Known: At each even-numbered level, an acolyte of the skin gains new spells per day (and spells known, if applicable) as if he had also gained a level in a spellcasting class to which he belonged before adding the prestige class level. He does not, however, gain any other benefit a character of that class would have gained (improved chance of turning or destroying undead, a bonus feat, and so on). If he had more than one spellcasting class before becoming an acolyte of the skin, he must decide to which class to add each level for the purpose of determining spells per day and spells known.
Wear Fiend (Su): An acolyte of the skin summons the essence of a fiend and wears it like a second skin. The bonded fiendish skin is for all intents and purposes the character?s own. It increases the acolyte of the skin?s natural armor bonus by 1 and grants a +2 inherent bonus to Dexterity. The acolyte also gains darkvision out to 60 feet. The DM determines the actual nature of the skin, be it demonic, devilish, or from some other fiendish creature.
Poison (Sp): An acolyte of the skin can use poison once per day as an 8th-level caster. The save DC is 14 + the acolyte?s primary spellcasting ability modifier (Intelligence for wizards, Charisma for sorcerers and warlocks, Wisdom for clerics, and so forth). At 5th level, an acolyte can use this ability two times per day.
Flame Resistant (Ex): At 2nd level and higher, the fiendish skin binds more tightly, granting an acolyte resistance to fire 10.
Fiendish Glare (Su): From 3rd level on, an acolyte of the skin has the supernatural ability to unnerve opponents with a ferocious glare once per day. This is not a gaze attack, and the target need not meet the acolyte?s eyes or even see the acolyte (although the acolyte must have line of effect to the target). Glaring is a standard action that affects any creature the acolyte can see within 100 feet. The target becomes shaken for 10 minutes, and must also attempt a Will save (DC 10 + acolyte?s class level + Cha modifier) or be stunned. The duration of the stun effect depends on the targets hit points:
-50 or less 10 rounds
-51 to 100 3 rounds
-101 to 150 2 rounds
-151 or more 1 round
Fiendish glare is a mind-affecting fear effect.
Skin Adaptation (Su): By 5th level, an acolytes skin and its wearer have grown more comfortable together, as if they had never been separate. The increase to natural armor granted by the fiendish skin improves to +2, the acolyte gains a +2 inherent bonus to Constitution, and the acolytes darkvision is effective out to 120 feet.
Cold Resistant (Ex): Beginning at 6th level, an acolyte has resistance to cold 10.
Glare of the Pit (Su): At 7th level and higher, an acolyte has the supernatural ability to produce fiery rays from his eyes. Once per day as a standard action, he can project two rays (one from each eye) with a range of 100 feet. Each ray requires a ranged touch attack to hit and deals 8d6 points of fire damage. The rays can be aimed at two different targets within range, but the target of each ray must be designated simultaneously.
Summon Fiend (Sp): At 9th level, an acolyte learns to draw on another power of his fiendish skin. If the skin is demonic, once per day he can summon a babau; if devilish, once per day he can summon a chain devil. The summoned creature does the acolytes bidding, but it automatically returns whence it came after 1 hour. A summoned creature cannot use any innate summoning abilities it might have. An acolytes caster level for this ability is equal to his spellcaster level.
Fiendish Symbiosis (Ex): At 10th level, the fiendish skin and acolyte become one, and only final death can separate them. The acolytes type changes to outsider. Additionally, an acolyte of this level gains damage reduction 10/good. Unlike other outsiders, an acolyte can be raised or resurrected.
==== RITUAL OF BONDING ====
The Ritual of Bonding is a blasphemy that was long ago eradicated from most arcane libraries, but a few barely legible copies or at least references there to survive along with promises of great power. Spellcasters who happen upon such documents can choose to destroy or ignore the find, but the temptation has already occurred. Those who give in can eventually stumble upon the complete ritual, usually through extended contact with one or more summoned fiends that are all too eager to share their terrible knowledge.
The Ritual of Bonding is painful and not to be undertaken lightly. The ritual requires 10 rounds from initiation to completion, and, once begun, nothing can halt its progress. The fiendish essence consumes the casters own skin, an agonizing process that deals 1d4 points of damage in each round of the ritual wise candidates keep some cure potions on hand. At the end of the rite, the acolytes skin sports an oily, almost unnoticeable sheen. However, as he gains additional levels in the prestige class, his skin darkens, sprouts spikes, and gradually gives him a fiendish visage. The fiendish essence also begins to whisper foul secrets to its wearer, urging him to evil. (The wearer can accept or ignore this advice according to his t
=== Advancement ===
Level	BAB	Fort	Ref	Will	Special 	Spellcasting
1st 	+0 	+2 	+0 	+2 	Wear fiend, poison 1/day 	–
2nd 	+1 	+3 	+0 	+3 	Flame resistant 	+1 level of existing spellcasting class
3rd 	+2 	+3 	+1 	+3 	Fiendish glare 	–
4th 	+3 	+4 	+1 	+4 	– 	+1 level of existing spellcasting class
5th 	+3 	+4 	+1 	+4 	Skin adaptation, poison 2/day	–
6th 	+4 	+5 	+2 	+5 	Cold resistant 	+1 level of existing spellcasting class
7th 	+5 	+5 	+2 	+5 	Glare of the pit 	–
8th 	+6 	+6 	+2 	+6 	– 	+1 level of existing spellcasting class
9th 	+6 	+6 	+3 	+6 	Summon fiend 	–
10th 	+7 	+7 	+3 	+7 	Fiendish symbiosis 	+1 level of existing spellcasting class
=== Class skills ===
Skill name 	Key ability	Trained only	Armor check penalty
Concentration 	CON 	 	
Craft 	INT 	 	
Intimidate 	CHA 	 	
Knowledge (arcana) 	INT 	 	
Knowledge (the planes)	INT 	 	
Profession 	WIS 	 	
Spellcraft 	INT