I remember reading an MTG design article back during the Time Spiral on a what-if scenario where every MTG set would have a different card back.
I've tried looking through the MTG archives, but all I can find is this one;
Which talks about how that almost happened, but isn't the expanded article that I remember. Did I imagine this?
(I hope this is on topic, but I'm afraid it might not be as it's a question about an article about a game, rather than a question about a game.)