Khazrak makes one attack with this magic weapon in each Close Combat phase, in addition to his four normal hand weapon attacks (this can be allocated against a different target if desired, for example attacking rank and file with his normal attacks, and a character with Scourge). If you successfully roll to wound with Scourge, Khazrak may immediately roll
to wound again, and so on until he fails to make the required score. Each wound is treated as a separate hit for the purposes of saves.

Note that these extra wounds can only ever hit the model that was the original target of the attack; effectively it gives Khazrak several chances to kill a model hit by the weapon, or kill models with more than one Wound. Any excess wounds are wasted, except in challenges where they count towards Overkill as normal.