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Or as @pikachutcg said, it could just be some other benign explanation

That makes sense, however, given this is Minnies first time getting an Enchanted print, and a gorgeous one at that

Professionally, Greysun has been writing and editing video game content for over a decade

The closest I could find to anybody doing it in the mainstream recently was Artifact (I know, I know, I'm stretching the word "mainstream" here) with a slightly bastardised version of the concept handled via Steam's marketplace, and even then it's still an online auction house, not just doing fun swaps with your pals and saying "well I've got this, what've you got?", like exchanging the best parts of your packed lunches at school

Want to check it out