Please review this creature (Thundain players do not read)

Can you all double-check the correctness and balanced-ness of the
following critter? Thanks in advance for feedback.


<...spoiler space provided so my players morals can have a moment to
set in...>
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<name>
Many <name> generate a despair aura, which they use to freeze their
victims for a quick and easy slaying. They attack their designated
targets ruthlessly and efficiently and without fear. They will not
stop until they or their victim is dead.

<name> Traits: Most <name>s possesses the following traits (unless
otherwise noted in a creature's entry).

-Immunity to cold and poison.

-Resistance to electricity 10 and fire 10.

-See in Darkness (Su): Some <name>s can see perfectly in darkness of
any kind, even that created by a deeper darkness spell.

-Summon (Sp): Some <name>s share the ability to summon others of
their kind (the success chance and type of <name>s summoned are noted
in each creature's description).

-Telepathy.

Except when otherwise noted, <name>s speak Abyssal, Celestial, and
Draconic.

<specific-name>

Medium Outsider (Extraplanar, Incorporeal)
Hit Dice: 6d8+12 (39 hp)
Initiative: +9
Speed: Fly 50 ft. (perfect)
Armor Class: 20 (+5 Dex, +5 deflection) touch 20, flat-footed 15
BAB/Grapple: +6/--
Attack: Touch +11 melee (1d6 plus 1d6 Con drain)
Full Attack: Touch +11/+6 melee (1d6 plus 1d6 Con drain)
Space/Reach: 5 ft./5 ft.
Special Attacks: Con drain, despair, summon <name>
Special Qualities: Damage reduction 5/cold iron, darkvision 60 ft.,
immunity to cold and poison, resistance to electricity 10 and fire 10,
see in darkness, spell resistance 17, telepathy 100 ft.
Saves: Fort +7, Ref +10, Will +7
Abilities: Str --, Dex 20, Con 15, Int 10, Wis 15, Cha 20
Skills: Hide +14, Intimidate +14, Knowledge (any one) +9, Listen +11,
Search +9, Sense Motive +11, Spot +11, Survival +11
Feats: Combat Reflexes, Improved Initiative, Track
Environment: A neutral-aligned plane
Organization: Solitary, pair, team (3-5), or squad (6-10)
CR: 6
Treasure: None
Alignment: Always neutral
Advancement: 7-12 HD (Medium)
Level Adjust: +6

<specific-name>s stand around 6 feet tall and appear as areas of smoky
darkness. They have a constantly shifting visage that takes the form
what their designated victim fears the most.

Combat
A <specific-name> is not particularly creative in battle. If its
victim is not frozen with despair upon first sight of the
<specific-name>, it will create darkness and attack its opponent
directly and mercilessly. It will use its incorporeality and teleport
and tracking abilities to hound its designated victim relentlessly.

Despair (Su): At the mere sight of a <specific-name>, its designated
victim or victims must succeed on a DC 18 Will save or be paralyzed
with fear for 1d4 rounds. Whether or not the save is successful, that
creature cannot be affected by the same <specific-name>'s despair
ability for 24 hours. The save DC is Charisma-based.

Constitution Drain (Su): Living creatures hit by a <specific-name>'s
incorporeal touch attack take 1d6 points of Constitution drain. On
each such successful attack, the <specific-name> gains 5 temporary hit
points.

Spell-Like Abilities: At will-deeper darkness, greater teleport (self
plus 50 pounds of objects only). Caster level 12th.

Summon <name> (Sp): Once per day a slayer can attempt to summon another
<specific-name> with a 35% chance of success. This ability is the
equivalent of a 3rd-level spell.

>CR: 6
Make it CR 7 or even 8.
The abilities are quite powerful, as is the attack form and the aura.
Compare this creature to a standard Wraith. The more I think about it,
make it CR 8. Alternatively, you could add a vulnerability to make it a
CR 7. With a vulnerability added, I would give it a 10-12 HD (large)
advancement.
--
LB