It's so hard not to open these booster pokemon booster packs. Hidden fates was such a fun set to open. It has 3 of my favorite pokemon cards. Gyarados, Charizard, and Raichu. Pokemon: Hidden Fates Ultra Ball Collection 1999 Pokemon Base Set CHARIZARD Black Triangle 1st Edition Error Pack PSA 10 eBay 1999 Base Set Black Triangle Error Booster Pack Set PSA 10 The very first expansion to be released for the Pokmon TCG was Base Set (Expansion Pack in Japan), and in front 1999 Pokemon Base Set Booster Pack Black Triangle Error Blastoise Art PSA 8 on Fanatics Collect Pokemon Cards BASE SET Booster Pack (11 cards) Blastoise Artwork Factory Sealed & Mint Walmart.com