From Afista on the EQ2 Forums:
Beta testing for the Altar of Malice expansion is in full swing and now open for everyone to try out! Joining the Beta server for testing is a great chance to take a look at all of the incredible things coming with Altar of Malice, and also an excellent opportunity to give us your feedback about the expansion before it launches on November 25, 2014. In addition to seeing these gorgeous lands before launch, you can also take some loot home to your live characters just for participating in the Beta action! Take a look at the rewards players can obtain for their live accounts by Beta testing overland, heroic, and tradeskill content.
This Char-Ferrin, Hound of Despair ground mount is rewarded to players who Beta-test solo overland content in Altar of Malice. Intimidate your enemies by riding into battle on this ferocious hellhound! If the flaming eyes and spiked mane aren’t enough to scare you, maybe the razor-sharp teeth will awaken your senses.