What is Pokémon Storm Emeralda (M6)?

Pokémon Storm Emeralda (M6) is the sixth main set in the Japanese Pokémon TCG Mega Evolution era, and it releases in Japan on 31 July 2026. The set is built around Mega Rayquaza ex, the fan-favourite Hoenn legendary, and leans heavily on the Hoenn theme with trainer cards for Zinnia, Steven Stone and Wallace. For UK collectors this is the summer's most talked-about Japanese drop, and it lands months before the English release.

If you have followed the Japanese Mega Evolution line — Mega Symphonia, Mega Brave, Inferno X, Mega Dream ex, Nihil Zero and Ninja Spinner — Storm Emeralda is the next chapter, and arguably the most anticipated so far because of Rayquaza's popularity. Pixel Hub carries the wider Japanese Pokémon range so you can start (or continue) a Mega Evolution run today while M6 stock settles.

When does Storm Emeralda release in the UK?

The Japanese Storm Emeralda (M6) set releases on 31 July 2026. There is no separate UK street date for the Japanese print — UK collectors buy the same Japanese-language product, which importers and UK-based stores like Pixel Hub stock around the Japan launch. The English-language version, titled Delta Reign, is scheduled for 6 November 2026 as part of the Pokémon TCG: Mega Evolution series.

In short: if you want Mega Rayquaza ex before winter, the Japanese set is your only route until November. Buying from a UK seller means it ships domestically with no customs charges or import VAT added at your door.

What's inside a Storm Emeralda booster box?

A Japanese Storm Emeralda booster box is expected to follow the standard Japanese main-set format:

• 30 booster packs per box.
• 5 cards per pack.
• A main set of roughly 76 cards, plus an estimated 35–40 secret rares for a total near 115 cards.
• Flagship chase: the Mega Rayquaza ex Special Art Rare (SAR).
• Hoenn trainer support including Zinnia, Steven Stone and Wallace.

Japanese boxes are popular with collectors because the pull rates and print quality are consistent, and the alt-art SARs tend to be the most sought-after cards in the era. Note that specifics beyond the flagship are still being confirmed as of July 2026, so treat secret-rare counts as close estimates.

Which cards are the chase in Storm Emeralda?

Mega Rayquaza ex SAR

The Mega Rayquaza ex Special Art Rare is the headline card and the one most UK collectors will be chasing. Early Japanese secondary-market estimates put it around ¥35,000–50,000 (roughly £185–£265 as of July 2026), though values move quickly in the weeks after a set drops.

Hoenn trainer cards

Full-art trainers for Zinnia, Steven Stone and Wallace are expected to be strong secondary chases. Hoenn-themed trainer art has a loyal following, and these tend to hold value well beyond the initial hype window.

Start your Japanese Mega Evolution collection now

Storm Emeralda is the sixth entry in the Japanese Mega Evolution line, so the earlier sets are the natural on-ramp. These are in stock at Pixel Hub right now, all authentic Japanese product shipped from the UK:

Mega Dream ex High Class box — £99.99

Mega Brave (M1L) box — £89.99

Mega Symphonia (M1S) box — £81.99

Buying Storm Emeralda in the UK: what to know

Because Storm Emeralda is a Japanese set, UK buyers sometimes get caught out by overseas sellers who add import VAT and courier handling fees on delivery. Buying from a UK-based store avoids that entirely — you pay one price, it ships domestically, and there are no import fees. Every Japanese product Pixel Hub sells is 100% authentic, factory-sealed stock. See our shipping policy and FAQs for delivery timings and authenticity details.

Where to buy Pokémon Storm Emeralda in the UK

Pixel Hub is a UK-based collectibles store carrying authentic Japanese Pokémon sealed product, from the current Mega Evolution boxes through to promos and high-class packs. As Storm Emeralda stock arrives it will sit alongside the rest of the Japanese range, so the Japanese Pokémon collection is the page to watch.

Shop Japanese Mega Evolution

Or browse the full Japanese Pokémon collection.

Helpful external references

For official background and card database details:

• Serebii — Storm Emeralda set list
• PokéBeach — Storm Emeralda reveal

Frequently asked questions

When does Pokémon Storm Emeralda release?

The Japanese Storm Emeralda (M6) set releases on 31 July 2026. The English version, Delta Reign, follows on 6 November 2026.

Is Storm Emeralda a Japanese set?

Yes. Storm Emeralda (M6) is a Japanese-language set. The English-language equivalent is called Delta Reign and arrives later in 2026, so Japanese product is the only way to open Mega Rayquaza ex this summer.

How many cards are in a Storm Emeralda booster box?

A Japanese Storm Emeralda booster box is expected to contain 30 packs of 5 cards. The main set is around 76 cards, rising to roughly 115 when secret rares are included.

What is the chase card in Storm Emeralda?

The Mega Rayquaza ex Special Art Rare (SAR) is the flagship chase, with early Japanese estimates around ¥35,000–50,000 (about £185–£265 as of July 2026). Zinnia, Steven Stone and Wallace trainer cards are strong secondary chases.

Can I buy Storm Emeralda in the UK without import fees?

Yes. Buying from a UK-based seller like Pixel Hub means the product ships domestically with no import VAT or customs handling fees added on delivery, unlike ordering direct from overseas.

Final thoughts

Pokémon Storm Emeralda (M6) is the summer 2026 highlight for Japanese collectors, putting Mega Rayquaza ex front and centre months before the English Delta Reign release. If you want in early, the Japanese route is the one to take — and starting with the earlier Mega Evolution boxes is a smart way to build the run. Buy from a UK store for authentic, no-import-fee sealed product.