If a unit of Hexwraiths moves through one or more unengaged enemy units in the Remaining Moves sub-phase, nominate one of those units. That unit immediately suffers a Strength 5 hit per Hexwraith (or Hellwraith) that has passed through it, distributed as shooting attacks. These hits are magical, have the Flaming Attacks special rule, and no armour saves are allowed against them.