Command Re-Roll

WHEN: In any phase, just after you have made
a Hit roll, a Wound roll, a Damage roll, a saving
throw, an Advance roll, a Charge roll, a
Desperate Escape test, a Hazardous test, or just
after you have rolled the dice to determine the
number of attacks made with a weapon, for an
attack, model or unit from your army.
EFFECT: You re-roll that roll, test or saving
throw.