If this Bound spell is cast with a casting result of 7 or more, the target friendly unit may re-roll any failed Armour Save rolls. If this Bound spell is cast with a casting result of 11 or more, the target friendly unit may re-roll any failed Armour Save rolls and improves its armour value by 1 (to a maximum of 2+). This spell lasts until your next Start of Turn sub-phase.