Steps:
1. Go on the realm you want a Demon Hunter.
2. Create a class trial character.
3. You can now create a Demon Hunter on the realm.
It was my newbie friend who found it while creating his first character ever
Keep in mind you have to create the DH immediately after you create the trial char, if you change realm or exit you have to do the process over again.
I think it's a wonderful way to farm mounts!
1. Go on the realm you want a Demon Hunter.
2. Create a class trial character.
3. You can now create a Demon Hunter on the realm.
It was my newbie friend who found it while creating his first character ever

Keep in mind you have to create the DH immediately after you create the trial char, if you change realm or exit you have to do the process over again.
I think it's a wonderful way to farm mounts!