Castellans of the Crimson Keep
Temporarily released from the confines of their cursed citadel, Prince Vhordrai and his loyal retinue of lancers fall upon the foe with desperate hunger, glutting themselves upon blood and slaughter.
The Shifting Keep: At the start of the game, after territories have been determined, but before any units have been set up, pick a battlefield edge. Instead of setting up this battalion, you may place it to one side and say that it is set up in the Crimson Keep. At the end of any of your movement phases you may set up any units from this battalion wholly within 6" of the chosen battlefield edge and more than 9" from enemy models.
In the Shadow of the Keep: Whilst they are within 15" of the battlefield edge picked as described in the Shifting Keep ability above, you can re-roll failed hit rolls for the Templar Lances or Blades used by units of Blood Knights in this battalion.