Bloodhulk Crusher (CR 8)

Huge Undead
Alignment: Always neutral evil
Initiative: -2(Dex); Senses: darkvision 60 ft., low-light vision, Listen +0, and Spot +0
Languages: understands creator's orders

AC: 14 (-2 size, -2 Dex, +8 natural), touch 6, flat-footed 16
Hit Dice: 20d12+150 (280 hp)
Fort +6, Ref +4, Will +12
Speed: 30 ft.
Space: 15 ft.; Reach 15 ft.
Base Attack +10; Grapple +34
Attack: Melee: slam +24 (3d6+24)
Special Attacks/Actions:
Abilities: Str 43, Dex 6, Con -, Int -, Wis 10, Cha 1
Special Abilities: Immune: undead immunities; Weakness: fragile
Special Qualities: blood bloated, undead traits
Skills: Listen +0 and Spot +0
Advancement: mindless undead
Climate/Terrain: Any
Organization: solitary or small group
Treasure/Possessions: None

Source: Monster Manual IV

Fragile (Ex): A bloodhulk crusher takes an extra 1d6 points of damage whenever it takes at least 1 point of damage from a piercing or slashing weapon.

Blood Bloated (Ex): A bloodhulk crusher always gains the maximum hit points possible per Hit Die. In addition, it gains 2 bonus hit points per Hit Die.

The most powerful version of this undead, a bloodhulk crusher is a living engine of destruction. Evil clerics use these beasts as walking engines of war. Their tremendous durability and great strength allow them to batter down castle gates, smash apart buildings, and crush smaller creatures. See: bloodhulk fighter and bloodhulk giant.