The MEGA Pack Emerald Tempest, the fourth set of 2026 in Japan, has been officially teased in a video. Scheduled for release on July 31, 2026, this set marks the return of Mega Rayquaza with the Mega Rayquaza ex card.
A dedicated website for Mega Rayquaza has also been launched, featuring the campaign "Mega Rayquaza Soaring Through the Sky," with information to come. Each display will include 30 boosters, priced at 6000 yen, which is 200 yen per booster, with each booster containing 5 cards.