Divine Light

The priest parts the storm clouds and a ray of
Sigmar's divine light illuminates the battlefield.
In your hero phase, pick a unit wholly within 18"
of this PRIEST and roll a dice. On a 3+ the
prayer is successful. If the prayer is successful
and you chose an enemy unit, you can re-roll hit
rolls of 1 for attacks that target that unit until
your next hero phase. If the prayer is successful
and you chose a friendly unit, re-roll unmodified
hit rolls of 6 for attacks that target that