Besides the flavor they add showing that there are now more Man'ari Eredar allied with us, they will also give you one Argunite Cluster. Argunite Cluster contains 10-15 Veiled Argunite and a number of Argus crafting materials that can be used to buy cosmetics unlocked by the questline.
Continue reading »
Once you complete the questline to unlock the Man'ari Eredar customizations for Draenei, there will be six different NPCs spread across Argus with the title "Ally of Arzaal".