Yu-Gi-Oh! TCG Booster – 25th Anniversary Rarity Collection II:

Each pack will contain:
2 Secret Rares. (each with an individual 1-in-4 chance of being upgraded to a Platinum Secret Rare or Quarter Century Secret Rare)
4 Ultra Rares (each with an individual 1-in-6 chance of being upgraded to a new “Prismatic”-style Collector’s Rare or new “Prismatic”-style Ultimate Rare)
3 Super Rares