They can, thankfully, be exchanged for other goodies you might need, with a 1:1 exchange for a Pack Hourglass (60 times maximum)
1 Shivan Hellkite
Ideal for thicker cards, patches, and memorabilia
In their place, however, we got etched-style foil stand-ins for the face commanders of each precon (the $20 precon model also had to go, which may be another story for another article)
Youre guaranteed one of these cards in your Special Edition box (either Dark Smog or Gagaga Girl ), plus the 27 cards you pull from your 3 booster packs, loaded up with Mermails, Madolches, and more
Grading by a recognized organization is essential for any card of significant value