Pokémon Storm Emeralda Booster Box - Japanese

Product description

The Pokémon Storm Emeralda Booster Box is a package of 30 booster packs from the Japanese edition. Each booster pack contains 5 trading cards. In total, you’ll receive 150 Pokémon cards from the Mega Evolution Storm Emeralda set.

The Pokémon Storm Emeralda set is set to be released in Japan on July 31 as the sixth set in the Mega Evolution series.

Among the 76 cards in the Storm Emeralda series, the biggest star is Mega Rayquaza ex.

This Japanese edition introduces new two-part Stadium cards. Each of these cards has the word “Legendary” in its name. These names reference the Legend cards from the HeartGold & SoulSilver era, such as Lugia Legend, which required both halves of the card to be played.

The English version of the Storm Emeralda set will be released under the title Delta Reign on November 6, 2026—three months after the Japanese release. Since English editions have been released regularly at two-month intervals since the start of the Mega Evolution era, the release of Delta Reign was originally planned for September 2026. However, due to the special release of the 30th Celebration set, the release was pushed back to November of this year.

The name Storm Emerald, which we first noted back in June 2025, refers to Rayquaza’s role in the game Pokémon Emerald, where it lives in the ozone layer. The letter “A” at the end of the word “Emeralda” is likely a nod to the title Legends: Z-A, in which Mega Rayquaza plays an important role in the DLC.
The English title of the Pokémon Delta Reign set refers to Rayquaza’s Ability, Delta Stream.

M Rayquaza-EX was already a main character back in 2015 in the Roaring Skies set during the XY era, when the Mega Evolution mechanic first appeared.

The cards are in Japanese!

Japanese editions of Pokémon cards have become popular due to their superior artwork, exceptionalm animations, and easier availability of cards that are often rarer in other languages.