Brotherhood of Psykers
(Rule)Description: A Grey Knight unit can use one Psychic power each turn. The unit counts as a single Psyker and follows all the normal rules for Psykers, with the following clarifications:
• A Grey Knight unit uses the Leadership of its Justicar or Knight of the Flame (if he is alive), or the unit (if he is dead) for Psychic tests. A Grey Knight unit can never use the Leadership value of an Independent Character for Psychic tests.
• If the Grey Knight unit suffers the Perils of the Warp, or any attack that specifically targets Psykers, it is resolved against the Justicar or or Knight of the Flame (if he is alive) or against a random non-character model in the squad if the Justicar or Knight of the Flame is dead.