User blog comment:OnceUponATimeFan3/House of Anubis Characters/@comment-30671736-20140306205313/@comment-4816103-20140306210155

Or maybe he was in season three's original universe... You know, that theory I had?

Clearly this is the work of some magic person who managed to watch Season Three in universe one, and documented their findings as usual, but didn't realize that only they had seen the season, and thus, only they had seen Big Phil.

Obviously, this is the only explaination, and I will not accept anything else.