I love this product, it came out in 2016 and I still pick these boxes up anytime I come across them. The mythical collection boxes were a holiday set for the year of 2016 ( sometimes referred to as a special set ) Pokemon had released one box and plush per month for pretty much a whole year, each featuring a different Pokémon. This is the Victini box and it comes with two generations booster packs and a full art ( non textured) promo card and a pin. The generations set worked differently then other sets, so let me explain a little so you know what to expect from this set and your card packs. Typically you would receive 10 random cards in each pack with one guaranteed rare card, with Generation there is a main set and a smaller sub set, so it is possible to get two ultra rare's in a pack, one from the main set and one from the sub set, which would not happen in any other set of Pokemon cards. That thrill and excitement when you open this set and possibly get two ultra rare's is what makes it in my opinion one of the best sets to date!