Nemesis Dreadknight - Notable Formations: Dreadknight Brethren Formation - While the Dreadknight was originally devised for those times when a single Grey Knight must face a Greater Daemon in battle, the Dreadknight Brethren are fielded in times of even greater peril: when a single squad of Dreadknights must confront an entire horde of Daemonic entities. These formations can cut ichor-stained swathes through the Daemonic legions, and will make even Greater Daemons think twice about attacking their allies. A Dreadknight Brethren Formation consists of between three and five Dreadknights.Extermination Force - An Extermination Force focuses on swiftly eliminating important targets within a Daemon horde. A single Nemesis Dreadknight forms the unit's vanguard and is outfitted with a modified armament that has been subtly altered to fire specially-crafted tracker rounds. Once the Dreadknight finds its target it fires the tracker rounds. The shrapnel laces the victim with a fine layer of psychic spoor. Once marked, a squadron of up to five Stormraven Gunships armed with Psybolt ammunition will descend upon the foe and destroy it with overwhelming firepower.Grey Knights Brotherhood - A Grey Knights Brotherhood formation consists of a Grey Knights Grand Master, a Brother-Captain, one Brotherhood Champion, three Grey Knights Strike Squads, three Grey Knights Terminator Squads, two Grey Knights Interceptor Squads, two Grey Knights Purgation Squads, a single Grey Knights Dreadnought and a single Nemesis Dreadknight. A Grey Knights Brotherhood is one of the most formidable fighting formations in the galaxy. Under the command of its Grand Master and brother-captain it comprises over a hundred elite psychic warriors of the Emperor, each one armed and armoured with the finest wargear available to the Imperium. Even more impressive than the firepower an assembled Brotherhood can muster is its prodigious psychic might, each and every Grey Knight a powerful psyker able to merge his will with that of his brothers to crush anything that stands in their way. It is rare that the Grey Knights will assemble an entire Brotherhood, and only in times of direst need does the Grand Master call upon the combined strength of his warriors. However, when the Brotherhood gathers it is a fearsome and glorious sight to behold. The air practically hums with barely contained energy as the combined wills of a hundred Grey Knights gather in one place, the very Warp responding to their presence. Just as a squad of Grey Knights battle-brothers have a strength of will greater than the sum of its psykers, so too does a Brotherhood outstrip a squad by a magnitude of mental power. The results are nothing less than catastrophic for their foes, the blistering energies conjured by the collective Grey Knights able to banish Daemons in the blink of an eye and push back the tides of the Warp by force of will alone. For this reason Brotherhoods are gathered when a single squad or strike force would not suffice, such as when a world has been enveloped by the Immaterium or a vast and terrible Greater Daemon has torn its way into reality. Grey Knights Brotherhoods also excel at conventional warfare, carrying all the weapons they require to deal with a myriad of foes. Terminator Squads form the mailed fist of the Brotherhood, their Nemesis Force Weapons and Storm Bolters more than capable of shredding most foes. Strike and Interceptor Squads provide a rapid response force for the Brotherhood, appearing swiftly to exploit their enemies' weak points or prepare the way for the Grey Knight assault. Purgators provide heavy fire support in the form of Incinerator, Psilencer and Psycannon barrages. Deployed in the right place, a Purgation Squad can clear the battlefield of foes. To deal with larger enemies, Brotherhoods can call upon Dreadnoughts and Nemesis Dreadknights, their servo-assisted fists and blades the equal of any Warp-birthed monster. Finally, the Brotherhood has the peerless leadership of a Grand Master to guide it in battle.