Ice Flenser sub-race

Overview
Ice Flensers are Evil Outsider type monsters. As all demons, they are always Chaotic Evil.

Description
Should you encounter an ice flenser in the midst of your explorations into the dungeons of Xen'drik, flee. Flee immediately before your feet are encased in ice, and do not cease running until you are well away from the creature - or at least have a few companions lagging behind between you and it.

(Note: The ice flenser that appears in the Misery's Peak quest is severely hobbled, and should not be construed as being anything close to the power of a full-blown creature. It is assumed that ice flensers need a period of time to develop their full powers after being summoned, that, or the Misery's Peak summoners were unlucky and produced an inferior or young specimen. In any event, do not compare the Misery's Peak flenser with other ice flensers!) 

Quite seriously, the ice flenser represents a threat that most adventurers have no ability to deal with. The ice flenser is supremely difficult to kill, like all of its powerful demonic kin, and simultaneously demonstrates powerful and damaging attacks that lead to a quick end. Should you face the creature in combat, you must overcome its damage reduction with blessed weapons of cold iron and its resistance to many forms of energy attack. Then you must deal with its punishing reign of claws encased in chilling ice, which are backed by a strength greater than that of a hill giant. Worse yet, rumors abound that the ice flenser itself is not above summoning help of its own when it is threatened...

So, heedless of these warnings, you've heard of an ice flenser and are going to do your best to destroy it. Once your accounts are settled and your will is written, my advice is to rely on only the few tools that have proven successful in the past. If you don't have access to the weapons the creature is vulnerable to, then your fighters must simply intimidate and distract the creature while you pound it with fire spell after fire spell. If the situation grows desperate, you can attempt a banishment or dismissal, though the creature's resistance to magic (spell resistance and the excellent saving throws of an outsider) make it deeply unlikely to succeed. But then again, your chances were never that good anyway...

Combat

 * Claw (Slashing and Cold damage)
 * Chilling attack (Encases you in ice)
 * Freeze Ground (Generates slippery surface, and lots of ice shards that deal cold damage when touched)
 * Spell like abilities
 * Ice Storm
 * Polar Ray (Elite only)

Qualities

 * Damage Reduction 5-15/Cold Iron and Good
 * See Invisibility
 * Spell Resistance
 * Acid resistance
 * Immunity to Cold
 * Vulnerability to Fire (150% damage from fire)

Types

 * Ice Flensers originated from Khyber and Xoriat are almost identical, but their DR is bypassed by Byeshk instead of Cold Iron.
 * Flesh Renders don't have a elemental affinity, but are but possess equal Fire Resistance and Cold Resistance.
 * Fire Reavers have a greater affinity with fire, being immune to them, and casting fire-based spells at you.