The zero equip cost allows Grafted Wargear to efficiently come down and change the texture of combat, and the cards drawback adds some risk to the equation
The former certainly is the larger factor, with the rarest pulls like alternate art cards, or secret rare gold cards, always fetching the highest prices
Packaging ensures content protection, though minor wear during shipping may occur
So maybe it was a fluke and only on specific products
Fun This last criteria is less concrete but in many ways the most important part of a discard design
The full list of cards included in the set is: Sprigatito Fuecoco Quaxly Cetoddle Cetitan Pikachu Pawmi Kilowattrel Flittle Sandaconda Klawf Blissey Tandemaus Cyclizar Kirlia All of these cards have previously been available as part of the Pokemon Scarlet and Violet expansion, however, this set will feature holo versions of six of the Pokemon, Sprigatito, Fuecoco, Quaxley, Cetitan, Pikachu, and Klawf