In theory, they could buy regular old playing cards and sleeve them up. Those are pretty cheap.
But yeah, since it's print and play it's going to require players to do a little more work than usual. That's just the nature of this model.
I'm not that familiar with bitcoin/mining in general, so there's a lot I don't understand to distribution and I may missing certain aspects.
From my understanding though, since cards/packs must be "mined" and then held onto. Wouldn't stores/tournament organizers need to mine a ton of unopened packs in order for the draft to happen? Since mining takes time (I don't know how long.) Would they need to potentially limit events to every 3 or 6 months to rebuild supply?
Also, I don't fully understand how a owned pack turns into multiple cards. Since all cards just go into your collection, however that's managed. When these packs are "opened" and turned into multiple cards, is there a tag on them or something to note that they came out of a pack?
I'm just imagining hearthstone, you click the pack get a fancy display and can see these cards came form this pack, you click the ok button and they all go into your collection. After that, they are indistinguishable from your other cards. Wouldn't this work similar?
Since the store/TO would need to open the packs to print out the cards:
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