The Regular print was later released as an unnumbered Mirror Holofoil XY-P Promotional card in Japan as a 20th Anniversary Festa side event prize. Players competing in the Shōwa VS Heisei Battle were divided into two teams: those born before January 8, 1989 formed the Shōwa team, and those born on or after January 8, 1989 formed the Heisei team. Shōwa and Heisei refer to the respective previous and current historical eras in Japan, defined by imperial succession. The team that won the most battles at the end of the event was declared the winner. All members of the winning team were awarded this card, which also features the 20th Anniversary Festa event logo in the bottom right corner of the artwork. The 20th Anniversary Festa was held at Toki Messe, Niigata on October 10, 2016 and at the Nagoya Trade & Industry Center, Nagoya on October 23, 2016.