Complex sentence: The Japanese version of the card has red text in the margin stating its illegality; it was one of the few Japanese cards with this message that was produced in English, most likely because of its immense popularity with collectors.
Split into simpler sentences: The Japanese version of the card has red text in the margin stating its illegality. It is one of the few Japanese cards with this message that was produced in English, most likely because of its immense popularity with collectors.