The Pokemon Double Crisis card series is a set of collectible cards featuring characters and creatures from the Pokemon universe. The cards are part of the XY Series, released by The Pokemon Company International in 2015. This series features a special type of card called a Mega Evolution card, which allows a Pokemon to “evolve” into a more powerful version of itself. The set also includes cards featuring the new type of Pokemon, Fairy-type, as well as cards featuring characters from the XY anime series. The set includes more than 70 cards, including rare and ultra rare cards. The Double Crisis series is a great addition to any Pokemon fan's collection, and a great way to start a new collection.