Warpath is now selling the Life-Binder's Handmaiden. Currently it is a mount that is 100% drop from Heroic Deathwing, but being reduced to in MoP.
(Source: http://eu.battle.net/wow/en/forum/topic/5071488033?page=5#95 )
Price is 150k. and you will be guaranteed a mount on that scheduled Tuesday at around 11pm server. Takes less than 30 minutes and you can jump of the cliff if you like! Any loot that drops that is appropriate for your class/spec, you can have too! You also get a sick title, Savior of Azeroth!
Message or send in-game mail to Jkhan if you interested or got any questions.