Oath of Moment

When the Emperor commands it, It must be done, no
matter the costs! God Wills It!
If your Army Faction is Adeptus Astartes, at the
start of your Command Phase, select one enemy
unit. Until the start of your next command phase,
each time models from your army with the ability
make an attack that targets that enemy unit, you
can re-roll the hit and wound rolls.