The XY Evolutions Prerelease Kit is a special product given to participants at the start of Prerelease Tournaments for the Evolutions expansion. Prerelease Tournaments for the Evolutions expansion were held on the two weekends prior to the release of the expansion, on October 22-23, 2016 and October 29-30, 2016. Each Kit contains a random set of predetermined cards designed to enhance the experience of the Limited format tournament that follows.
Included in each Prerelease Kit is a 23-card Evolution pack that includes one of the four specially stamped Prerelease cards for the expansion, as well as four booster packs. The Prerelease cards for the Evolutions expansion were Charizard, Gyarados, Mewtwo, and Machamp, with the four different groups of possible Pokémon cards being based on their four types: Fire-type, Water-type, Psychic-type, and Fighting-type.