Rules5

A fighter with the Psyker keyword is a sanctioned witch of the Inquisition — a licensed astropath, sanctionite or warp-sighted Mystic, and in the Ordo Malleus the warded psyker-Inquisitor itself. It may manifest the Wyrd Powers of the Sanctioned Psychic discipline it has access to, one working at a time, and every attempt courts the price of over-reaching the sanction. Among the Malleus the keyword belongs to the Mystic by default and to the warded, Willpower-hardened Inquisitor by build; no Acolyte, Crusader or Servitor bears it, and the Daemonhost is a bound horror, not a caster. The powers are drawn free at creation — the gift is baked into the sanctioned-psyker's cost — because the seal does not sell witchcraft, it merely permits it.

Bound Daemonhost. A Daemonhost is a daemon crushed into mortal flesh and held there by an Inquisitor's binding — a monster worn as a weapon. Its unnatural nature grants a 5+ invulnerable save, and it makes no ranged attack, striking only with tearing claws. It may be fielded only by an Inquisitor who has taken the Bind the Daemonhost skill. While that Inquisitor remains on the battlefield the binding holds firm: the Daemonhost passes the first control test it fails each round without effect, the leash snapping taut before the thing inside can turn. Should the Inquisitor be taken Out of Action the binding frays, and every failed control test is resolved in full — the daemon straining against a slackening grip.

The Inquisitor's Authority. The mandate an Inquisitor carries is not a symbol but a weapon — a will that steadies lesser souls and bends them to the master's purpose. While the Inquisitor is Standing and Active, friendly fighters within Short of the master may re-roll a failed Nerve test, for no true servant breaks while the Inquisitor watches. Once per battle, the master may spend that authority absolutely: name a friendly group activation and compel it, taking the fighters in hand and acting them at once regardless of the ordinary order of play. Each Ordo dresses the aura in its own creed, but the power beneath is the same — the seal made flesh, driving the retinue where the enemy would break it.

Requisitioned native rules. A body pressed into the retinue serves as what it already is, not as some lesser copy of itself. When a fighter is requisitioned from an allied Imperial force, it is fielded with the supplier's own statline, wargear and rules unchanged — a Grey Knight brings his Aegis, his Smite and his Nemesis force weapon; a Battle Sister her Shield of Faith and her Acts of Faith; a Deathwatch Veteran his kill-team doctrines. Nothing of the borrowed fighter is re-drawn or re-worked for the Inquisition's sake. It joins the retinue at its own home cost, raised only by the seal-toll owed for the summons, and otherwise fights precisely as it fights beneath its own banner.

Sanctioned discipline. Throne Agents are chosen and tempered against fear as surely as against the enemy — schooled to hold where an untrained soul would break and to think clearly when terror crowds in. The Inquisitor and every native Agent of the retinue carry improved Nerve and Cool, standing firm through the horrors that scatter lesser fighters. This hard-won steadiness is the psychology of a disciplined elite, the exact opposite of a fragile mass that routs at the first blow. It is the quiet foundation beneath the seal: a retinue small in number but sure of nerve, which does not flinch when the hunt turns bloody.