Varen the Reclaimer wants you to slay 8 Shadowmoon Slayers, 8 Shadowmoon Chosen and 4 Shadowmoon Darkweavers.
Completing quests for the Scryers will cause your Aldor reputation level to decrease.
You did well against the Ashtongue Broken, <name>. I have another challenge for you, should you be up to it. Not too long ago, the Sanctum of the Stars suffered a tremendous attack by Illidan's fel orcs. We've determined it was perpetrated by the Shadowmoon orcs who occupy the Ata'mal Terrace. Show them that the Scryers are not to be trifled with.
You've gained my utmost respect today, <name>.
Slaying one fel orc is not an easy task. Massacring a score of them is, well... heroic.