test yugioh deck against computer Complete Custom for Yu-Gi-Oh! READ* Casual Play/Deck Test Card:

Mirror Room is basically Mirror Image in room form, which is a nice follow-up to the more expensive room, or a fine value play that bridges the gap until you can pay the full 7 mana on Mirror Room // Fractured Realm

This particular misprint can also occur on regular cards (though obviously not the date stamp) now that rares have the secondary "foil" stamp in the border

According to the official Pokmon website, there are 240 new cards , 30 Trainer Gallery cards, 14 V cards, 1 VMAX card, and 6 new VSTAR cards

Nonetheless, both English and Japanese ultra-rare cards can be worthwhile for collectors and investors, as long as one understands the nuances of their market supply