These cards are fake . if you have duplicates of these you might as well get rid of them all theyre worth nothing more than what theyre made of and thats cardboard. If you ever get holographics and the design is a burst like a fire work its fake
I mean if you have personal value of the items then i understand by all means keep them but besides that theyre al most worthless. You Cannot use them in a duel or tournement & selling in person for money theyre virtually worthless . the only thing you can do is look at them unless someone else has some fake ones to duel you with lol