The Armaments of Ka’bandha

A model attacking with this weapon never receives +1 Attack for fighting with two Melee weapons (see page 177).

Attacks with this special rule may re-roll failed Armour Penetration rolls against Vehicles and Buildings (both with Shooting Attacks and in close combat) and re-roll Glancing Hits, in an attempt to instead get a Penetrating Hit, but the second result must be kept.