Nauseating Aura
(Rule)Description: Enemy Psykers(i.e. a model with the Psyker, Brotherhood of Psykers/Sorcerers or Psychic Pilot special rule) that are locked in combat with a unit from this Detachment at the start of the Fight sub-phase must reduce their Weapon Skill by 1 (to a minimum of 1) for duration of the phase.