From 1d4chan

A strange Dark Eldar tool that is of a sister family of the equally weird Hexrifle.

The Ossefactor employs weaponized osteocytic impulsion-waves, normally used by the Haemonculi to craft bone structures and fashion spinal sumps. It projects a focused overdose of this energy at its victim, triggering uncontrolled osteocytic multiplication. It was originally derived from study of the mutations that allowed the Black Dragons to grow bone blades out of their arms and heads.

Bones twist and lengthen violently, shooting out dozens of spurs like the branches of some hideous tree. The luckless victim is rent apart by their own warped skeleton, even as their horrified squad mates find themselves impaled on the calcific spears that burst from their body. Depending on the Haemonculi's mood. These victims are usually slayed instantly. Except when they are not.

The Ossefactor is a horrific weapon that have the abillity to prolong the victim's suffering. This is thanks in part of the medical skill and genetic mastery of the Haemonculi. Of all the DEldar weapons, the Ossefactor is an intentionally methodical weapon. Whilst Dark Eldar Laser Weapons provide a relatively quick and fast death, Splinter Weapons uses neurotoxins that create a fast but painful death and Liquifier Guns quickly burns off any pain receptors. Only the Ossefactor deliberately and sadistically make their victim suffers excruciating deaths as their bodies mutilate itself. Not even the Shredder comes close.

Most often then not, the victim dies from pure shock before the boneitis starts to act like biological spike bombs.

Weapons of the Dark Eldar
Sidearms: Blast Pistol - Fusion Pistol - Splinter Pistol - Stinger Pistol - Terrorfex
Basic Weapons: Blaster - Shardcarbine - Shredder - Splinter Rifle
Special Weapons: Destructor - Eyeburst - Hexrifle
Liquifier Gun - Ossefactor - Splinter Pods - Tormentor
Heavy Weapons: Dark Lance - Haywire Blaster - Heat Lance
Phantasm Grenade Launcher - Splinter Cannon
Vehicle Weapons: Disintegrator Cannon - Horrorfex - Implosion Missile - Monoscythe Missile
Necrotoxin Missile - Shatterfield Missile - Spirit Vortex - Stinger Pod
Melee Weapons Dark Eldar Combat Weapons - Power Weapons
Grenades & Explosives Plasma Grenade - Haywire Grenade - Void Mine