Protocol: Vengeful Stars

One Necrons unit from your army that had one
or more of its models destroyed as a result of the attacking unit's attacks:
Your unit can shoot as if it were Shooting phase,
but it must target the enemy unit that just
attacked it, and can only do so if that enemy unit
is an eligile target. If a Necrons Character leads
your unit, until the end end of the phase, ranged weapons equipped by models in your unit have
the [IGNORES COVER] ability.