Assemblage of Might
At the start of your Command phase, select one unit from your opponent's army. Until the start of your next Command phase, each time a model in an ADEPTUS CUSTODES CHARACTER unit from your army makes an attack that targets that enemy unit, add 1 to the Wound roll. Faction Pack v1.1 rewrites this rule. Three things are worth pinning down. It is CHARACTER units only, so it pays nothing for a Custodian Guard squad that has no Character attached. It is declared at the start of your Command phase, before you move, so you are committing to a target a full turn ahead and your opponent gets to react to it. And it applies to attacks, ranged and melee alike. The pack also FAQs the awkward case: if a Character leading a unit is destroyed, for instance by a [PRECISION] attack, the rule does not keep applying to the rest of that unit. This is the faction's most focused detachment and the one that most rewards planning a turn in advance.