Shadow Demon
Medium elemental humanoid (demon)
Level 12 Elite Lurker XP 1400

Initiative +17        Senses Perception +12; Darkvision
HP 196; Bloodied 98
AC 28; Fortitude 25, Reflex 27, Will 26
Resist 15 necrotic, 15 variable (2/encounter), insubstantial; Vulnerable radiant (if the shadow demon takes 15 or more radiant damage, it loses phasing and insubstantial until the end of the attacker's next turn)
Saving Throws +2
Speed fly 8 (hover); phasing
Action Points 1

(⚔) Claw (standard, at-will) ✦ Necrotic

+15 vs Reflex; 2d6+7 necrotic damage.

⚔ Void Rake (minor; requires combat advantage, at-will) ✦ Necrotic

+17 vs AC; 2d6+5 damage.. the shadow demon makes a melee basic attack.

ᗕ Abyssal Void (standard, recharges when first bloodied) ✦ Necrotic, Zone

Close burst 3; +13 vs Fortitude; 1d6+6 necrotic damage. The burst creates a zone of darkness that lasts until the end of the shadow demon's next turn. The zone of darkness cannot be illuminated, and it blocks line of sight for all creatures that cannot see in darkness. A creature that starts its turn within the zone takes 1d6 + 6 necrotic damage.

Combat Advantage

When the shadow demon uses a claw attack to damage a target it has combat advantage against, the target cannot spend healing surges until the end of the shadow demon's next turn.

Alignment Chaotic evil        Languages Abyssal
Skills Arcana +13, Bluff +17, Stealth +18
Str 8 (+5)      Dex 24 (+13)      Wis 12 (+7)
Con 20 (+11)      Int 14 (+8)      Cha 22 (+12)

Published in Manual of the Planes, page(s) 122.