Just want to echo the feedback that I definitely prefer things now that art cards were removed from Play Boosters and moved to Collector Boosters, they said, In fact, I feel there should be an even clearer line between Play Boosters and Collector Boosters. They then went on to advocate for the removal of Showcase cards from Play Boosters, owing to their potential negative effects on gameplay
There are plenty of non-destructive ways to verify the authenticity without damaging your cards
Note the misprint on the type line
The curing Special Condition keeps this card in the top 10 because many of these can cause the Active Pokmon to faint or become unable to act
The Return to Earth Boulder 100+ and the Sidewinder 100+ Xenoskin each hold 100 double-sleeved cards (120 single-sleeved), while the Omnihive 1000+ Xenoskin is designed as a mass storage box for multiple card cases and/or play-mats or a larger collection of single cards such as a cube
Modern Horizons 3 also has serialized cards, which can be difficult to track so we left them off here