It also says that Luxord is the Superior, or at least is speculated to be. Despite crappy translations, it's definitely saying his card is the ace.
Straight from Frogle on gamefaqs:
Kouli's translation of what was written by the person who posted the details concerning the magazine did not necessarily suggest that Luxord was the Superior. Rather, the person was making a supposition based off of what the magazine had concerning Luxord's weapon to suggest that Luxord was a higher ranked member.
The main reason why people thought it was saying he was the Superior was because of the awkward way babelfish translated that phrase.
Kouli's Translation: Even if Luxord is not No.1, he seems to be at a higher rank. As I thought, the 13 numerals are originated on playing cards!?
I FORGOT TO ADD THIS!!!!!!!!!!!!!!