Composition3

The Grey Knights are the daemon-hunters — a tiny, irreplaceable brotherhood of psyker-knights who fight as a surgical anti-warp scalpel. Every warrior in the gang is a sanctioned psyker in Terminator-standard plate, and that single fact reshapes everything: the whole House casts, the whole House wards, the whole House banishes. There are no recruits and no chaff here, only tested veterans, which makes this the most elite-skewed roster in the game and the one with the least margin for loss.

They win by precision and psychic dominance rather than numbers. The Aegis raises a collective anti-Wyrd ward that thickens as the brothers cluster; the Brotherhood lets every model cast one Sanctic power a round; Grand Master's Will steadies both from the centre of the line. Nemesis force weapons banish the daemons they fell, and teleport assault drops the right brother onto the key threat before the enemy expects anyone there. Their hard counter is the warp itself — daemons and psykers — and their hard weakness is attrition: out-body the irreplaceable few and the brotherhood breaks. Played to its strengths, the House purges the threat and loses nothing doing it.

Beneath the silver plate of the daemon-hunters lies the same transhuman frame every Adeptus Astartes carries into war. A Grey Knight is a Space Marine first: a body raised to Toughness 5 and three Wounds, a warrior who does not break where lesser soldiers rout. Survival is written into the flesh — the layered muscle, the fused ribcage, the redundant organs — and not into the thickness of the armour. Fear finds no purchase on such a fighter; it steadies itself and holds the line long after a mortal would have fled.

Onto that Astartes foundation the Ordo Malleus grafts a second terror: an entire brotherhood of psykers, each mind a weapon turned against the warp. Where a Chapter fields a handful of Librarians, the Grey Knights field only Librarians — every helm hides a witch trained to banish the daemon and burn the sorcerer. Few in number, irreplaceable, and superhuman in the flesh, they are the scalpel the Imperium reserves for the enemies no other force is permitted to face.