Grey Knights - Nemesis Force Weapons: The most distinctive weapon of the Grey Knights is the Nemesis Force Weapon, most commonly the Nemesis Force Sword and its variants. Finely tuned to the wielder's psychically-active mind, it is a perfect weapon to use against Daemons and other denizens of the Warp.Nemesis Force Weapons are sanctified Force Weapons, usually taking the form of a sword, halberd or spear. Sometimes a rare Nemesis Warhammer or Nemesis Mace will appear, though Nemesis Weapons can take the form of any Human close combat melee weapon. Each Nemesis Weapon is consecrated and anointed with sacred oils, psychically-charged, and inscribed with religious scripts of the Imperial Creed that are anathema to Daemons. The first Nemesis Force Weapons had Storm Bolters built into the shaft of the weapon, but newer models separated the ranged weaponry from the melee blade.It is said that the secret lore required to create Nemesis Force Weapons was first developed by the Emperor Himself before the Unification Wars began, and that this knowledge was one of the gifts He gave to the Grey Knights when the Chapter was founded.Like all Force Weapons available to the psychic warriors of the Imperium, the power of the weapon itself directly corresponds to the psychic talent of the wielder. As the Grey Knights are some of the greatest psykers in the galaxy, Nemesis Force Weapons prove to be truly devastating in their hands. Because of this quality, the entire Chapter is able to wield these weapons, and every member is a hero in his own right. However, due to the inexperience of younger recruits, the Nemesis Force Weapons delegated to lower ranks will be weaker in terms of strength than their higher-ranked counterparts. This makes a weapon effectively "evolve" as the bearer progresses through the ranks, his psychic powers intensify and he slowly masters the weapon.In the hands of a Grand Master, these Force Weapons are some of the strongest in the galaxy, as a Grey Knight Grand Master is more than capable of beating a Daemon Prince or a Carnifex with a single cut.Known variants of Nemesis Force Weapons used by the Grey Knights Chapter are:Nemesis Force Halberds - As ancient in design and purpose as the Grey Knights themselves, Nemesis Force Halberds are finely-crafted polearms with long, curved blades and sturdy hafts. A Grey Knight can easily use such a weapon one-handed in short, deadly chops. However, the weapon becomes even more dangerous should he wield it two-handed.Nemesis Daemon Hammers - The most common Nemesis Force Weapon to be used by non-Grey Knights, the Nemesis Daemon Hammer is often used by high-ranking Inquisitors of the Ordo Malleus. It combines the crushing power of the Daemon Hammer with the arcane construction of the Nemesis Force Weapon to craft a deadly bane of all things Daemonic.Nemesis Doomfist - A variant of the massive Power Fists found on Dreadnoughts, the Nemesis Doomfist is a massive weapon easily able to crush a man in its grip. Nemesis Doomfists are only found as part of the Dreadknight battle suit.Nemesis Falchions - Always used in a pair, Nemesis Falchions can be carried by a Grey Knight with a Storm Bolter thanks to the Storm Bolter's wrist mounting. The falchions contain monofilament circuitry that greatly enhance the speed at which they can be brought to bear.Nemesis Force Swords - A lighter version of the Nemesis Force Halberd, a Nemesis Force Sword can take many forms. Nemesis Force Swords are crafted using arcane magicks and complex scientific formulae and incorporate a power field that is enhanced by the psychic strength of its wielder like all Nemesis Force Weapons. Its balanced grips and nearly indestructible construction makes it the perfect weapon for parrying the attacks of even the most powerful Daemonic foe.Nemesis Greatsword - Found only on the Dreadknight battle suit, the Nemesis Greatsword is a massive blade of silver and iron so large that not even an Adeptus Astartes in power armour can lift it. Despite its immense size, it is perfectly balanced in the hands of a Dreadknight, and is a powerful tool against even a Greater Daemon.Nemesis Warding Staves - Of the many weapons forged in the Grey Knights' fortress-monastery's subterranean foundries, few require the same complexity and care in their crafting as a Nemesis Warding Stave. Like any Nemesis-breed weapon, its inbuilt power matrix is a shielded, inert core awaiting psychic activation, and just like the more traditional blades, its functions can only be activated by the thoughts of the psychic warrior it has been built for. And there the similarities end. Every stave bears a headpiece of punishingly rare purity -- a small handful topped by the armoured skulls of Imperial saints or Sanctioned Psykers of great majesty. Some are topped with something that is rarer still -- the skull of a Grey Knights Justicar or some other Chapter hero, haloed by consecrated gold. Veined by mercury-threaded monofilament circuitry, ceramite plating will preserve the relic for centuries to come.