Owning the DLC for The Elder Scrolls Online already confers a benefit upon you, insofar as you have access to everything contained within that DLC. But the developers have decided to give players a little bit more for their ownership in the form of two new vanity pets. The Orsinium DLC offers an Echalette pet, while the Thieves’ Guild DLC provides a handsome jackal pup to follow you on your adventures.
Both of these new pets require achievements, but the achievements in question simply require you to walk into the areas added in the DLC; that unlocks the achievement and awards you the pet. Future DLC packs will include vanity pets from the outset. Good news for those who love vanity pets as well as those who thought that new areas and quests were great and all but severely lacking in ways to show the world that you owned the content no matter where you were standing.