Storm Emeralda M6 (Delta Reign) Guide: Card List and Mega Rayquaza ex

Set Overview: What Is Storm Emeralda?

Storm Emeralda (ストームエメラルダ) is the sixth MEGA Expansion Pack in the Scarlet & Violet series, designated M6, released in Japan on July 31, 2026. It arrived approximately two months after its companion set Abyss Eye (M5, released May 22) — together forming the summer 2026 wave of the MEGA Evolution era. Some English-language searches also spell it “Storm Emerald” — the official romanization keeps the final “a.”

The Full Product Lineup (July 31, 2026)

Storm Emeralda launched with six products on a single day, an unusually large lineup for a MEGA Expansion Pack.

The three MEGA Starter Sets are notable for collectors: they typically include exclusive promo cards not found in the main booster set, plus several booster packs. The Collection File Premium featuring Mega Rayquaza is a collector accessory product that usually includes a special promo card — previous Collection File Premiums from the MEGA era have become sought-after items.

The “Emeralda” Connection

The set name directly references Pokemon Emerald — the 2004 Game Boy Advance title where Rayquaza was the box legendary and Mega Evolution’s spiritual predecessor (Primal Reversion) was introduced in the ORAS remakes. In the Legends: Z-A M-Dimension Rush DLC, Mega Rayquaza’s sky-domain storyline serves as the counterpart to Darkrai’s abyss-domain arc from Abyss Eye. The two sets are thematically linked: darkness below, storm above.

Trademark Timeline

The “Storm Emeralda” trademark was filed on June 27, 2025 — the same day as Abyss Eye, confirming they were planned as companion sets from the start. Early rumors from September 2025 (via PokeBeach) initially suggested Mega Zygarde ex as the headliner, but sell sheets confirmed in February 2026 that Mega Rayquaza ex takes the lead role.

Pre-Release Leak Watch (Through July 2026)

Before the July 31, 2026 release, discussion on X, Reddit and Japanese prediction pages centered on a Rayquaza SAR and/or MUR as the expensive card of the set, on Zinnia (Higana) because of her ORAS Rayquaza story connection, on Mega Zygarde from older leaks, and on Kyogre and Groudon from Emerald/ORAS nostalgia. The released set confirmed the Mega Rayquaza ex MUR and SAR and Zinnia’s Trust (SR 102/076 and SAR 112/076); the other names were theme-fit speculation at the time. Japanese retail buyers expected lottery-style allocation around the first official reveal wave.

Chase Cards and Dated Asks

The forecast table was compiled from Japanese market trackers (Altema, Toreca Map, SNKRDUNK speculation threads) and community analysis on July 15, 2026, before release.

SAR vs MUR: The Pre-Release Forecast

Before release, one forecast held that the Mega Rayquaza ex SAR might ask more than the MUR, on the precedent of SAR full-art treatments in some MEGA sets and Rayquaza’s aerial, serpentine design in the wide-canvas SAR format. On August 19, 2026, SNKRDUNK A-grade asks for the SAR were below those for the MUR.

Zinnia’s Trust

Zinnia (ヒガナ) is deeply connected to Rayquaza in Pokemon lore — she’s the Draconid lore keeper from ORAS who summons Mega Rayquaza to save the world from the meteor crisis. Before release, Altema forecast her SAR at ¥20,000–30,000. The released set includes Zinnia’s Trust as SR 102/076 and SAR 112/076.

The Hoenn Legendary Trio

Before release, Storm Emeralda’s Hoenn theme fed speculation about Primal Kyogre and Primal Groudon appearing alongside Mega Rayquaza, recreating the Weather Trio dynamic from Emerald/ORAS, and about Steven Stone and Wallace, the two Hoenn champions, in Trainer SAR slots. The official card list is the reference for the final lineup.

Should You Buy This Set?

Storm Emeralda’s combination of Mega Rayquaza, Hoenn nostalgia, and Dragon-type focus made it one of the most anticipated sets of 2026. Here’s how different collector profiles might approach it.

For Collectors (Experience-First Buyers)

If you collect Japanese Pokemon cards for the art and the experience, Storm Emeralda checks every box. Before release, Rayquaza’s serpentine dragon design in the SAR wide-canvas format was expected to produce one of the most visually striking cards in the MEGA era. The Hoenn theme — Zinnia, Steven Stone, the Weather Trio — adds nostalgic depth beyond just the headliner. If you opened and enjoyed Abyss Eye, Storm Emeralda is the natural companion purchase.

For Investors & Resellers

Before release, the investor case cited an estimated print run of 0.9–1.3 million boxes (lower than standard numbered sets), Rayquaza as a top-3 globally collected Pokemon, historical sealed appreciation of 40–80% within 12 months for popular M-series sets, and the Dragon-type angle from Evolving Skies; these were pre-release estimates, not results.

Storm Emeralda vs. Abyss Eye: Which to Prioritize?

If you’re choosing between the two summer 2026 sets:

• Rayquaza vs. Darkrai — Rayquaza has broader global collector appeal and stronger historical price data. Darkrai has a devoted fanbase but smaller overall market
• Dragon vs. Dark theme — Dragon-type sets (Evolving Skies) have outperformed Dark-type sets in long-term sealed value
• Product lineup — Storm Emeralda launched with 3 Starter Sets + Collection File Premium vs. Abyss Eye’s standalone box launch. More products = more entry points for new players
• Both — For serious collectors, both sets tell a connected story and complement each other in a collection

JPN vs. English: Which Version?

The English counterpart is confirmed: Mega Evolution — Delta Reign (ME06) arrives November 6, 2026 — about 14 weeks after the Japanese release. Japanese versions have historically carried a 15–40% premium over English equivalents for SAR and MUR cards. For collectors specifically seeking Japanese art quality and first-to-market access, the JPN version is the only way to hold these cards before November — see our full Delta Reign vs Storm Emeralda comparison. English hobby-shop listings in mid-August 2026 asked around $199.90 for a booster box and $99.90 for an Elite Trainer Box — retail asks, not MSRP — and the English card list had not been announced at that time; the full timeline, including Build & Battle Kits on November 20, is in our Delta Reign release date guide.

Post-Launch Timing & Buying Window

Storm Emeralda released on July 31, 2026, so the pre-launch reservation windows are history. Through August 19, 2026, box asks on SNKRDUNK fell, the MUR’s A-grade asks were about 60% below week one, and SAR asks were roughly a third of day one. A MEGA release usually runs from launch-week singles research to a patience window two to six weeks after launch for singles and extra boxes. For a specific Mega Rayquaza ex SAR or MUR, singles are the direct route; for one sealed box, our M6 booster box product page shows the current price and options.

How to Buy Japanese Pokemon Cards

Japanese Pokemon booster boxes are region-locked at retail — you can’t simply order from the Pokemon Center Online unless you have a Japanese address. Here’s how international collectors typically get access to new Japanese sets like Storm Emeralda.

Japanese Retail (Lottery System)

Major Japanese retailers use a lottery (抽選) system for popular set releases:

• Pokemon Center Online — Random selection; highest demand, lowest odds
• Geo / TSUTAYA / Yodobashi — Regional lottery applications
• Amazon Japan — Availability windows open closer to launch
• Rakuten — Multiple sellers; prices vary

Winning a retail lottery is typically the only way to secure MSRP pricing. Most international buyers can’t access these lotteries directly.

International Options

Samurai Sword Tokyo ships Japanese Pokemon products directly from Tokyo with tracked international delivery, packed to prevent transit damage, including the M6 booster box.

Key Dates