After July 31st it will be widely available
The usual Secret Rare, Ultra Rare, and Super Rare and 4 special rarities Quarter Century Secret Rare, Platinum Secret Rare, Prismatic Collector's Rare, and Prismatic Ultimate Rare 79 cards in the set: Each pack will contain 9 cards 2 Secret Rares (each having a 1 in 4 chance of being a Platinum Secret Rare or Quarter Century Secret Rare) 4 Ultra Rare (each having a 1 in 6 chance of being a Prismatic Collector's Rare or Prismatic Ultimate Rare 3 Super Rare 25th Anniversary Rarity Collection II Booster Packs releases on May 24th, 2024
The highest difficulty isn't particularly high if you have even half an on-meta deck of your own (speaking as a lapsed, at most casual TCG player myself), and so once you know what you're doing they can get a bit repetitive
Back when Wizards of the Coast was first working on launching the Pokemon TCG outside of Japan, one of the very first cards they printed was a test of Blastoise
Incapsula incident ID: 679000180012549307-1566975912772741