Horrid Dredwing

OK, so now that we're near the end of the expansion, it makes sense that we have enough information to tell people how to actually get this mount! Yes, you have to be Venthyr because the rare that has a chance to drop it comes from the Anima Conductor. However, once you obtain the mount, it looks like you can use it on your alts. (All covenant specific mounts that previously could not be used on alts can now be used on alts as long as you have reached Renown 80 at least once in that covenant.)

I REALLY wanted to come and post about where to BUY this mount, though. There are apparently 2 "Quartermasters" in Sinfall. You need to specifically buy it from Chachi the Artiste the RENOWN Quartermaster. I started in Ardenweald where the two quartermasters are right next to each other, so I totally forgot there were two in each area and kept going to the "Sinfall Quartermaster" not realizing that he was a totally different guy and I wasted my time leveling up an alt because my campaign ended up bugged at 8/9 and I've been waiting weeks for help from Blizzard. (Don't level up an alt for this! I can see the mount on my main now after switching covenants and looking at the correct vendor!) If you end up at the Sinfall Quartermaster, named Gregor the Pallidblade, then use the mirror to go to the other level and head over to the right guy that is next to where you turn in anima. (Can you tell that I am NOT a Venthyr normally?)

You CAN get this mount from Chachi the Artiste even if you change covenants and are Renown 1! I would suggest, though, if you are collecting mounts, then you should go through the entire campaign anyway to get all of the mounts available for Venthyr. You can easily start at Renown 60 by buying Broker Mark of Distinction from Au'Dara in Oribos for only 500 gold before flying over to Sinfall! (You can do this for all of the covenants and get the mounts up to Renown 60 super fast!)