The Forgotten Sons (Traitor only)

If an army whose Warlord has this Trait includes an Allied Detachment with the Legiones Astartes (Sons of Horus) special rule, the Warlord and any unit he joins automatically pass any Morale checks or Pinning tests they are called upon to make without any dice being rolled as long as at least one friendly unit with the Legiones Astartes (Sons of Horus) special rule can draw line of sight to the Warlord or his unit. In addition, the Warlord, and any unit he has joined, may make the Death Dealers Reaction (this Advanced Reaction is detailed in Liber Hereticus) without expending a point from the controlling player’s Reaction Allotment and counting all models in that unit that have the Legiones Astartes (White Scars) special rule as though they also had the Legiones Astartes (Sons of Horus) special rule (though they gain none of the benefits of that special rule) – this Advanced Reaction may still only be used once per battle.