This means new promo cards, hourglasses, and additional rewards for collectors of the mobile game
Commander is a long shot too, but there is at least some potential there
Trading Card Game created archetype conditions, the Yu-Gi-Oh
According to the lore text at the bottom of the card, the creatures are trapped on a rock (possibly an asteroid.) Someone left behind an encrypted log recording the existence of slivers, either an unlucky explorer or, perhaps, a scientist involved in experimenting with the creatures, which would be a nice callback to the Riptide Project
Theres a potential here for Archmage Emeritus to draw too many cards, but thats never a bad thing right
This uncertainty has made this one of the most sought-after Yu-Gi-Oh