Excelsis

An Excelsis army must be from Ghur.

Once per phase, when you pick a friendly unit to shoot or fight, you can say that the attack has been prophecied. If you do so, roll a dice. On a 1, subtract 1 from hit rolls for attacks made by that unit in that phase. On a 2-6, add 1 to hit rolls for attacks made by that unit in that phase.

You can use this command ability at the start of the combat phase. If you do so, pick 1 friendly EXCELSIS unit wholly within 12" of a friendly EXCELSIS HERO. If the unmodified save roll for an attack that targets that unit is that combat phase is 6, the attacking unit suffers 1 mortal wound after all of its attacks have been resolved.