Deathbringer (CR 17)

Large Undead
Alignment: Usually neutral evil
Initiative: +2 (Dex); Senses: Listen +35 and Spot +35

AC: 33 (-1 size, +1 Dex, +16 natural, +6 banded mail, +1 shield ), touch 10, flat-footed 32
Hit Dice: 30d12 (195 hp)
Fort +10, Ref +12, Will +19
Speed: 40 ft.
Space: 10 ft./10 ft.
Base Attack +15; Grapple +24
Attack: Large flail +16 melee and large flail +1 melee, or 2 slams +19 melee
Full Attack: Large flail +16/+11/+6 melee and large flail +1 melee, or 2 slams +19 melee
Damage: Large flail 2d6+5/19-20, heavy flail 3d6+2/19-20, slam 1d8+5
Special Attacks/Actions: Greater dispelling, negative burst, trample 2d4+7
Abilities: Str 20, Dex 15, Con -, Int 13, Wis 14, Cha 7
Special Qualities: Undead traits
Feats: Blind-fight; Cleave; Combat Reflexes; Great Cleave; Improved Bull Rush; Improved Critical (flail); Improved Sunder; Power Attack; Improved Natural Attack; Two-Weapon Fighting; Weapon Focus (flail)
Skills: Intimidate +31, Jump +36*, Listen +35, Move Silently +29, and Spot +35
Advancement: 31-50 HD (Large); 51-70 HD (Huge); 71-90 HD (Gargantuan)
Climate/Terrain: Any land and underground
Organization: Solitary, pair, or gang (3-5)
Treasure: None

Source: Monster Manual II

These powerful undead often lead undead armies assembled by necromancers, liches, demons, devils, or any other evil beings intent on inflicting pain and destruction on the living. Deathbringers care not whom they serve; they care only about inflicting widespread destruction.

A deathbringer is a hulking brute of humanoid shape. It has waxy gray skin and a bald head with no external ears. Its lips and eyelids appear to have been sewn shut with blue thread. The creature wears banded mail and wields two wickedly spiked heavy flails.

Deathbringers speak Common and either Abyssal or Infernal.