Not sure if anyone has noticed this but i found this out while examining the design of the deck. Apparently its in the part where there's bombs surrounding the gas mask, and there's black lines behind the bombs. kind of hard to explain but you guys can compared the pictures. the pictures are the top part of the card another the bottom. The entire deck is like that and so is the box so i suspect its the designing. Probably its an advantage to us? The secret one way back design?