If your Army Faction is ADEPTUS ASTARTES, at the start of the first battle round, select one of the following Vows to be active for ADEPTUS ASTARTES units from your army. While a Vow is active for a unit from your army, that unit has the associated ability shown below.
Each time this unit declares a charge, if one or more targets of that charge have the PSYKER keyword, you can re-roll the Charge roll. Melee weapons equipped by models in this unit have the [PRECISION] ability while targeting PSYKER units.
Each time a model in this unit makes a melee attack, if the Strength characteristic of that attack is less than or equal to the Toughness characteristic of the target, add 1 to the Wound roll.
This unit is eligible to declare a charge in a turn in which it Fell Back, and each time a model in this unit makes a Pile-in or Consolidation move, it does not need to end that move closer to the closest enemy model, provided it ends that move as close as possible to the closest enemy unit.
If this unit has the INFANTRY keyword:
At the end of your Command phase, if this unit is within range of an objective marker you control, that objective marker remains under your control until your opponent’s Level of Control over that objective marker is greater than yours at the end of a phase.
If the mission you are playing features Actions, this unit is eligible to start to perform an Action in a turn in which it Advanced.
If an ADEPTUS ASTARTES unit has a second Faction keyword on its datasheet, that Faction keyword is the name of that unit’s Chapter. For example, High Marshal Helbrecht has both the ADEPTUS ASTARTES and BLACK TEMPLARS Faction keywords, and is therefore from the Black Templars Chapter.
You cannot include units from more than one Chapter in your army.
If your army includes one or more units from the Black Templars Chapter or you are using one of the Detachments found on the following pages: □ ADEPTUS ASTARTES units from your army lose the Oath of Moment army rule (if they have it), and it is replaced with the Templar Vows army rule. □ You cannot use the 1st Company Task Force Detachment (see Codex: Space Marines). □ Your army cannot include any ADEPTUS ASTARTES PSYKER models. □ Your army cannot include the following datasheets from Codex: Space Marines: Gladiator Lancer; Gladiator Reaper; Gladiator Valiant; Impulsor; Land Raider Crusader; Repulsor; Repulsor Executioner; Sternguard Veteran Squad; Terminator Squad.