Festering Morass
Large natural animate (blind, undead)
Level 13 Elite Brute XP 1600

Initiative +8        Senses Perception +10; blindsight 10
Appalling Stench aura 10; living creatures that enter or start their turns within the aura take a -2 penalty to all defenses.
HP 330; Bloodied 165
AC 26; Fortitude 29, Reflex 23, Will 26
Immune disease, gaze, poison; Resist 10 acid, 10 necrotic; Vulnerable 10 radiant
Saving Throws +2
Speed 5
Action Points 1

Splattering Slam (standard, at-will) Necrotic

Melee 2; +14 vs AC; 2d6+1 damage and ongoing 10 necrotic damage (save ends), and each creature adjacent to the target takes 5 necrotic damage.

Necrotic Leakage (immediate reaction, when hit by a melee or ranged attack, at-will) Necrotic

Close blast 3; +12 vs Reflex; 2d6+6 necrotic damage, and the target takes a -2 penalty to attack rolls (save ends).

Necrotic Rupture (free, when first bloodied, encounter) Necrotic

Close burst 2; the burst creates a zone of necrotic mist. All creatures entering or starting their turns inside the zone take 10 necrotic damage. The zone moves with the festering morass and persists until the festering morass takes no damage from the end of one turn until the beginning of its next turn

Alignment Evil        Languages -
Str 23 (+12)      Dex 14 (+8)      Wis 19 (+10)
Con 25 (+13)      Int 4 (+3)      Cha 4 (+3)

Published in Dragon Magazine 371, page(s) 14.