Bonesting (CR 1)

Medium Undead
Alignment: Always neutral
Initiative: +7 (+3 Dex, +4 Improved Initiative)

AC: 15 (+3 Dex, +2 natural), touch 13, flat-footed 12
Hit Dice: 2d12 (13 hp)
Fort -, Ref +3, Will +3
Speed: 0 ft.
Space: 5 ft. by 5 ft./5 ft.
Base Attack +6; Grapple +
Attack: Swordspike +6 melee
Damage: Swordspike 2d6+7
Special Attacks/Actions: Swordspike, wounding
Abilities: Str 20, Dex 16, Con -, Int -, Wis 10, Cha 11
Special Qualities: Immunities, undead traits
Feats: Improved Initiative
Skills: -
Advancement: 3-4 HD (Large); 5-6 HD (Huge)
Climate/Terrain: Any land and underground
Organization: Any
Treasure/Possessions: None

Source: Web

Swordspike (Ex): The "tail" of a bonesting is known as a swordspike. This natural weapon inflicts slashing damage (crit 19-20).

Wounding (Su): Damage from a swordspike bleeds for 1 point of damage per round after dealing initial damage. Multiple wounds from a swordspike result in cumulative bleeding loss (two wounds for 2 points of damage per round, and so on). The bleeding can be stopped only by a successful Heal check (DC 15) or the application of any cure spell or other healing spell (heal, healing circle, and so on).

Immunities (Ex): Bonestings have cold immunity. Because they lack flesh or internal organs, they take only half damage from piercing or slashing weapons.

Skills: A bonesting gains skills as a construct.

A bonesting attacks by coiling and lashing out from its anchor point. It slashes or stabs foes with a bone "swordspike" as long as some men stand tall. If severed from its anchor point, a bonesting is destroyed.

Bone monsters are undead creatures assembled from the bones of fallen creatures and knitted together with necromantic magic. They are mindless automatons that obey the orders of their evil masters. If destroyed, they collapse into piles of unconnected bones.

These undead creatures appear as great snakelike assemblies of bone that are fixed to the wall, ceiling, or floor at one end. They have a length of 8 to 16 feet when fully uncoiled, and they have a thickness of about 1 foot.

A bonesting can be created by means of an animate dead spell, and it requires two corpses to create one bonesting.