You know. It's supposed to be random .. and random means random ... So i'm not going to answer your question... Random = Mystery = Unknown to all bidders ... I give no hints to mystery cards. If I did it would be in the description ...
The major card that, I'm assuming, people are bidding for is the Galaxy Photon Dragon. I didn't have to add the random cards but I did as a bonus to the winner. So does it matter? It's more cards ...
If you don't like the mystery cards then just sell them over listia ... it's not that hard ...