The Lower City faction is composed of multi-race citizens that fled to Shattrath City to seek sanctuary from the onslaught of the Burning Legion and the forces of Illidan.  The Lower City faction has Human war veterans and haggards, Broken Ones, Arakkoa exiles, renegade orcs, ogres and other races.

Their precarious situation and some lack of action from the Sha’tar and the Aldor have led the Lower City to take action on their own.  Lower City is sending spies to the Shadow Council and plan to attack them.  You gain reputation by killing Shadow Council members in Kil’Sorrow Fortress (Nagrand), Deathforge (Shadowmoon Valley), and Shadow Labyrinth—the southern dungeon-wing of Auchindoun in the Bone Wastes (South of Terokkar Forest).

The 16 rewards offered by the Lower City Quartermaster Nakodu appeal to the following tradeskills:  Jewelcrafting, Alchemy, and Tailoring.

Classes: Priests, Warriors, Paladins, Shamans.  Druids get a ring with Feral combat skill rating by 20, which isn’t useful for rogues, but could optionally get it for its + 20 dagger skill rating if the overall stats are an upgrade.  Priests get a nice trinket: Lower City Prayerbook.  All classes could use the Glyph of Shadow Warding for Heroic-mode dungeons such as Shadow Labyrinth, Shattered Halls and Arcatraz.

Just remember that to enter Kael’Thas 25-man raid-dungeon and Caverns of Time: Mount Hyjal, you need the Auchenai Key available at revered with the Lower City to complete the quest from A’dal, which requires you to kill Murmur in Shadow Labyrinth (Heroic-mode).