@ Fargone. Certainly, I coined the phrase "player experience" in this instance. However, I don't belive it was a far cry from Logress's statement that Caelus would be an expert in playing. Well, you know as well as I that this game isn't just battle after battle. Some things that us normal players do:
1) MM
2) gran management (ie: deciding whether to save for EX events, seasonal, new sets. Whether to spend on lotto, gold boxes, packs, beginners packs, etc)
3) Attend events / Participate in contests
4) Make decisions on level up / point card spending
5) Visit the chat and forums
6) Endlessly complain about card balance

7) Play meta decks endlessly cause of TB's
I'm sure I'm forgetting things, but the bottom line is - we have a strong community that is always willing to help with deck construction and provide advise to newer players. I'm certainly not trying to downplay Caelus's role, but we have vets who provide advise all the time - I've never seen a noobie request for help go unanswered.
My thought is that he would provide a player perspective to the GMs, which I think is something that has been mentioned by Lupos, but not necessarily implemented.
That being said, I haven't had time for much Alteil lately so I don't know how prevalent Caelus has been in the Arenas. And I'm pretty sure SpaceKnight is just a forum mod, for what it's worth.
It'll be like a taco, within a taco, inside a Taco Bell, inside a KFC, inside a mall, that's INSIDE YOUR DREAM!!!!!!