As far as card design goes, this card (as well as the other Holons Energy cards) helped make Energy droughts missed opportunities in the game to play an Energy Card a thing of the past
As more collectors chime in, it will be easier to find more concrete numbers regarding which cards are truly the most difficult to obtain
Level up has proved to be a great mechanic offering cards that scale well throughout that game complete with interesting choices
While any crossover has the potential to be a lazy cash-in, especially with Magic: The Gathering (cough, Monster Hunter delay, cough), the Final Fantasy set was incredible
Are Play Boosters good for drafting
Searching for "pokemon starter deck" reveals their popularity because they're affordable (starting around $10-20), thematic (e.g., Charizard ex-focused), and expandable, bridging the gap between casual fun and tournament readiness