Reins of the Corrupted Dreadwing

Reins of the Corrupted Dreadwing

I must admit that this is one of my favourite mounts released in WoD. The great thing about this mount is that it's not difficult to get, it's going to cost you 150,000 apexis crystals though so be prepared to farm. It can be purchased from a vendor in Lion's Watch or Vol'mar in Tanaan depending on your faction and you only need to be friendly with the required reputation.

I personally joined a raid group of 40 people in the Iron Front area during an apexis event (these can be found on the in-game calendar) and it took me roughly 10-12 hours to farm enough crystals (keeping in mind I already had 30k). 

In the screenshot I have included, you can see my Master of Apexis monument which requires you to collect 100,000 apexis crystals (this is an account-wide achievement). So not only do you get your awesome mount, but you get a monument to add to your garrison too.