The Hand of Darkness

The bearer may choose to make a single special attack using the profile presented instead of normal attacks.

If a model has this special rule, or is attacking with a Melee weapon that has this special rule, they always Wound on a 2+ in close combat.

Similarly, if a model makes a shooting attack with a weapon that has this special rule, they always Wound on a 2+. 

In either case, this special rule has no effect against vehicles or buildings.

If a model has this special rule, or is attacking with a Melee weapon that has this special rule, it rolls an additional D6 for armour penetration in close combat.

If a model makes a shooting attack with a weapon that has this special rule, it rolls an additional D6 for armour penetration. In either case, this special rule has no effect against non-vehicle models.

If a model suffers an unsaved Wound from an attack with this special rule, it is reduced to 0 Wounds and is removed as a casualty.