Rules3

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.