The likes of Esper Origins, Esper Terra, etc
For one, most people buying cards for tournament Constructed or casual Commander games are looking to play those cards, so having them encased in a sonically sealed plastic cover might pose an issue
The cross-buy demand from Iono completionists, Trainer collectors, and modern-art collectors compounds
When Sparkling Crystal is attached to a Tera Pokmon, which Dragapult ex is, that Pokmon's attacks cost one less energy , allowing for Dragapult players to use a strong move like Phantom Drive much sooner, or even use Jet Headbutt without needing any energy at all
Here we have a casual level deck that takes ideas from Tergrid, God of Fright EDH decks and Nicol Bolas, the Ravager EDH decks, and mashes them together with a little bit of dragon typal