Hero Phase - Command Ability

Gift from the Heaven :
You can use this command ability in your
hero phase. If you do so, pick 1 friendly
SERAPHON unit wholly wihtin 18" of a
friendly model with this command ability.
Until your next hero phase, that unit can
fly and you cann add 1 to save rolls for
attacks made by missile weapons that
target that unit. Once per hero phase.