Naestra's close combat attacks receive a +1 bonus To Wound against models from the Forces of Destruction, Arahan's close combat attacks receive a +1 bonus To Wound against models from the Forces of Order.
Source: Warhammer Fantasy: 8th Edition
Naestra's close combat attacks receive a +1 bonus To Wound against models from the Forces of Destruction, Arahan's close combat attacks receive a +1 bonus To Wound against models from the Forces of Order.