Board Thread:News and Announcements/@comment-34892399-20181104023431/@comment-34892399-20181104193211

The clearest answer yet, seems to confirm the suspicions.

Christy,

Thank you for your reply.

Please be informed that Louis is presented in the game in the only skin and cannot be upgraded.

Guardian's skin/appearance does not affect rewards that you get from it. So you can receive the same rewards randomly from all Desk Guardians. However, please note that previously it was possible to receive either access passes, reagents or banishing items, depending on which Desk Guardian you choose. Now you can randomly receive any of the items as a reward, as well as a ruby, various amounts of energy and coins, no matter which Desk Guardian you choose to use.

Please let us know if you have any further questions!