Even without ultra-rare finds like Pikachu Illustrator, many collections contain cards worth grading and preserving
Since in the series Chrollo's Nen ability "Skill Hunter" lets him steal and use the Nen ability of others, the card with the same name lets you "steal" and activate the effects of your "Phantom Troupe" characters that are in the battle area
Animation Module Animation Module does two things that Coven Counters wants access to
Additional Organizational Tools Sleeves and Protectors In addition to using a photo storage box and dividers, sleeves and protectors can be useful tools for organizing Pokemon cards
I can see it in some kind of low-to-the-ground aggro build, as you can pump up your attackers in various ways as it progresses
Naively, I imagined a world where I could actually collect a full set of cards, revel in the joy of a complete collection, and then move on to the next set and do it all over again