The Pokemon Trading Card Game, but the cards are swapped out with those from the NEO era of the TCG, with some changes
Due to containing guaranteed special cards, Collector Boosters are priced much higher than Play Boosters
The Aetherspark #496 First Place Foil Aetherdrift Change Version The Aetherspark Legendary Artifact Planeswalker Equipment As long as The Aetherspark is attached to a creature, The Aetherspark can't be attacked and has "Whenever equipped creature deals combat damage during your turn, put that many loyalty counters on The Aetherspark." +1: Attach The Aetherspark to up to one target creature you control
While Alphas Volcanic Island was famously misprinted and excluded from the initial print run, the Beta version became a staple for any deck running blue and red mana
They can block it with whatever they want
Combine that with trying to pull the most valuable cards like a rainbow Charizard or Pikachu, its understandable why collectors pay hundreds, even thousands for highly graded cards