The 1st Edition Jungle Pokémon TCG set was the second expansion set released, arriving in June 1999 and featuring 64 cards based on the Kanto Safari Zone. Key facts include its status as the first main expansion after the Base Set, its unique set symbol resembling Vileplume, and a variety of collectible cards like popular holos such as Vaporeon, Jolteon, and Flareon. The set is known for its high demand among collectors, potential misprints like the "D error" Butterfree and non-holo Electrode, and common condition issues like "silvering" on the holographic cards