Delta Reign has 141 cards and six SIRs. A 49-pack review yielded four full arts, five IRs and one SIR, with the reviewer praising the IR selection but criticizing limited variety.

Ultra PRO’s 4- and 9-pocket portfolios feature Mega Rayquaza, Mega Golisopod, Mega Golurk and Mega Malamar artwork, with release expected alongside the set.
Mega Portfolios for Mega Pokemon
Mega Rayquaza ex decks are already posting results in Japan’s City Leagues. Delta Reign also introduces two-card Stadiums that require both halves to enter play.
Mega Rayquaza ex is already posting results in Japan’s City Leagues. Grant Manley examines potential counters and Delta Reign’s two-card Stadium mechanic, while dismissing Bug Out as competitively weak.
Ultra PRO’s 4- and 9-pocket portfolios feature Mega Rayquaza, Mega Golisopod, Mega Golurk and Mega Malamar artwork, with release expected alongside the set.
Mega Golisopod ex’s special illustration rare, drawn by nagimiso for Japan’s Storm Emeralda, will reach international players in Delta Reign this November.
The 135-plus-card expansion features more than 35 special-illustration cards, led by Mega Rayquaza ex alongside Mega Golurk, Malamar and Golisopod ex.
Official deck lists showcase Mega Rayquaza ex builds exceeding 350 damage, a 340-HP Mega Golisopod ex recovery strategy, and a Bug Panic deck using Storm Emeralda cards.