I can't find any logic in the Ahriman and Goobue. Drake, maybe (The Beastmen tribe did manage to tame them after all), and it'll be an awesome ride for Dragoon, but the Ahriman seemed like an evil creature and Goobue just look comical.
...Why do I have a feeling we are all being trolled by Yoshida? In the video it looks like they can't keep a straight face when they showed the Goobue.