most expensive scarlet and violet pokemon cards 10 TCG & Before Set Release – GameSkinny The 10 Most Valuable Pokémon

Delirium If there are four or more card types among cards in your graveyard, instead search your library for any card, put it into your hand, then shuffle

These correspond to a full art Pokemon, a full art Pokemon ex or Supporter card, a full art "immersive" Pokemon ex, and a gold full art card (called a "crown rare")

I could see a version of a spells deck that uses these cards, especially with a meme-y style, like a full-on Universal Horror Mad Scientist Laboratory thematic

You can then apply this knowledge to build your game

Another is to just put the word out in your playgroup, at your local gaming stores (with their blessings of course), and to your friends in general