Ramkahen
The Ramkahen is one of the three clans/tribes of the Tol'vir race living in Uldum - the Orsis and the Neferset being the other two. When Deathwing came back to the world and entered an alliance with the Old Gods and the elemental lords, he set out to make some allies (or servants, as he probably sees them) in the desert lands of Uldum. The Neferset tribe were the first one to fall under his sway, as he had promised them to lift the Curse of Flesh off them, restoring them to their former stone forms. The Orsis clan became the first victims of Neltharion's new allies - their entire clan was obliterated by air elementals and former Neferset brothers. Currently the Ramkahen is the last Tol'vir bastion against the combined forces of Al'Akir and Deathwing, and it will be up to Azeroth's champions to help them reclaim the lands they've lost.Reputation
As with most factions, quests will be your first source of reputation. When you exhaust those, you will be left with a couple of daily quests and championing.- Quests. All of the Ramkahen quests can be found in Uldum. You will need to be level 83 to take the introductory
The Explorers / The Reliquary quest. - Dailies. As you quest throughout Uldum, you will gain access to (only) two dailies that increase your Ramkahen reputation -
Thieving Little Pluckers and Fire From the Sky. You can earn a total of 400 reputation (150 and 250, respectively) by doing both of them. - Tabard. Once you have achieved Friendly status with the Ramkahen you will be able to purchase
Tabard of Ramkahen from Blacksmith Abasi. As long as you wear this tabard, monsters in Grim Batol and Halls of Origination, as well as all of the Cataclysm heroic dungeons, will award reputation with the tribe. This method of reputation gain is called championing. - At Exalted, players can purchase
Reins of the Brown Riding Camel or 
Reins of the Tan Riding Camel, as well as obtain Ramkahen.