Alani (http://www.wowhead.com/item=90655/reins-of-the-thundering-ruby-cloud-serpent) mount is dropped 100% by killing the rare that is flying in Vale of Eternal Blossom.
To learn the mount you need exalted with Augustus Celestials,the rep is a must or you will keep the mount in bag untill you have exalted.Can sell it for ally or horde only on EU
Price is 15 euro , payment via paypall.
Post here before add me on skype.
Skype: draco_the_rapper