They drop of "wastewander outrider" not very high drop rate (at least when i did the q in December 2010).
Quest
Relics of the Sun King
A World of Warcraft quest in Uldum. Facts and objectives from the current retail game data.
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So who could this Sun King be actually?
I'd say that they drop every other time. So expect to kill 8-10 of these guys.
Quest facts
The client quest POI data records no map location for this quest, so no map is shown.
Check whether you have already completed this quest
in-game: /run print(C_QuestLog.IsQuestFlaggedCompleted(28141))
Description
The Seal of the Sun King serves as a defense mechanism for Ramkahen. When the barrier around Uldum fell, we began to see Wastewander outriders from Tanaris filter into our borders. They attacked this holy site on their way west and robbed it of the relics which once provided its power. Recover the relics for us. Without them we are powerless to defend against attacks from the desert.
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Reward details
Reputation: Ramkahen +250
The cat-like people of Ramkahen are the descendants of the Tol'vir, guardians of Uldum. Though they've lost their stone bodies, protecting the secrets of the titans is still a part of their rigid tradition.
Reputation group: Cataclysm.
Other quests in Uldum that reward Ramkahen reputation: Under the Choking Sands (+250), Minions of Al'Akir (+250), The Prophet Hadassi (+75), The Prophet's Dying Words (+75), Colossal Guardians (+250), Send Word to Phaoris (+150).
Item facts are the current retail client’s (ItemSparse); the specialisations for a pick-one item are the ones the Blizzard quest API lists; faction and currency text is the client’s own. Lowest listed price = the US commodity auction house now.