Pokémon TCG MEGA Expansion Pack Storm Emeralda (M6)— Market Prices, Mega Rayquaza ex MUR & Buying Guide

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Released in 2026 to celebrate the full launch of the Mega Evolution ex series, Storm Emeralda (M6) quickly became one of the year’s most sought-after Pokémon Card Game expansion packs.
Featuring the legendary Mega Rayquaza on its stunning box artwork, this expansion has already earned a reputation among collectors worldwide as a “Grail Box”. As a result, sealed boxes have become increasingly valuable for long-term collectors.
This article provides an in-depth breakdown of the latest market values for single cards—especially the top chase card captivating international collectors—alongside a comprehensive guide on how overseas buyers can safely acquire the Japanese edition.

Quick Overview: Pokémon Card Game
MEGA Expansion Pack Storm Emeralda (M6)

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First, let’s check out the basic details for this limited edition box.

Item | Details
Product Name | Pokémon Card Game MEGA Expansion Pack Storm Emeralda (M6)
Release Date | July 31, 2026
MSRP(List Price) | 1 Pack = ¥200 (Tax Included) / 1 Box (30 Packs) = ¥6,000 (Tax Included)
Featured Card | Mega Rayquaza ex
Contents | 1 Pack = 5 Cards (Randomly Assorted) / 1 Box = 30 Packs

This item was available exclusively through advance lotteries at select retailers and was not sold in standard retail stores, making it a highly rare and premium set.
Consequently, it tends to trade at a high premium in the global market.

Why Storm Emeralda (M6) Is So Popular And Its Collectible Value

The “Pokémon Trading Card Game: MEGA Expansion Pack ‘Storm Emeralda’ (M6)” is packed with unique appeal that captivates fans both domestically and internationally.

Mega Rayquaza ex Takes Center Stage: The expansion introduces Mega Rayquaza ex, one of the most iconic Legendary Pokémon from the Hoenn region. Released as a Colorless-type Pokémon with 280 HP, it has quickly become a favorite among both competitive players and collectors around the world.

Introduction of the New MUR (Mega Ultra Rare) Rarity: Storm Emeralda debuts the new MUR (Mega Ultra Rare) rarity alongside beautiful SAR (Special Art Rare) cards. These premium cards feature spectacular artwork that has attracted significant attention from collectors and investors worldwide.

High Long-Term Value for Sealed Boxes: Thanks to Rayquaza’s enduring global popularity and the expansion’s limited distribution, many collectors are choosing to keep their boxes factory sealed. Sealed Storm Emeralda boxes are widely viewed as strong long-term collectibles.

Top Chase Cards & Estimated Market Prices of Emerald (M6)

Estimated market prices as of 2026.

Prices vary significantly depending on card condition and whether the card has been professionally graded (especially PSA).

Mega Rayquaza ex MUR

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Estimated Market Price: ¥200,000+

PSA 10 Estimated Value: ¥400,000 – ¥500,000+

Highlights: Mega Rayquaza ex MUR is considered the ultimate chase card of the set. Historically, high-end Rayquaza cards have consistently performed well in international markets. With its extremely limited pull rate and the debut of the new MUR rarity, many collectors already regard it as a true Holy Grail card with exceptional long-term investment potential.

Zinnia’s Trust SAR

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Estimated Market Price: ¥7,000+

Highlights: Featuring the beloved Dragon-type Trainer Zinnia, this Special Art Rare showcases gorgeous artwork that appeals to both Pokémon card collectors and character fans. As one of Rayquaza’s most recognizable companions, Zinnia remains especially popular among international collectors.

Card Name | Rare | Estimated Price (2026/7) | Why It’s Hot
Mega Rayquaza ex | MUR | ¥200,000+ PSA 10: ¥400,000 – ¥500,000+ | The top chase card of the set. Features the new MUR rarity with an extremely low pull rate, high international demand, and strong long-term investment value.
Zinnia’s Trust | SAR | ¥7,000+ | Features the iconic Dragon-type Trainer Zinnia. Stunning SAR artwork with broad appeal among character fans and global Rayquaza collectors.

Check Market Prices for “Storm Emeralda (M6)”

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Availability in Japan

Storm Emeralda (M6) is an extremely limited-release expansion.

Retail Stores: Most retailers—including convenience stores—distributed the product only through pre-release lotteries or limited allocations. Regular walk-in purchases were generally unavailable.

Official Stores & Online Retailers: Major retailers such as Pokémon Center Online and Amazon Japan conducted advance lottery sales or invitation-based purchases before release, making it very difficult to purchase at MSRP on launch day.

Secondary Market: Today, most buyers obtain Storm Emerald through Japan’s secondary market, including trading card specialty stores in Akihabara and online marketplaces such as Mercari Japan and JDirectItems Auction.

How to Buy Storm Emeralda (M6) from Outside Japan

For overseas collectors, participating in Japan’s highly competitive lottery sales is often impractical. Instead, many international buyers purchase through trusted Japanese online retailers or marketplace services that specialize in exporting Japanese Pokémon cards.
If you’re looking for safe stores that ship internationally—or reliable proxy shopping services—be sure to check out our dedicated guide below.

For more tips on verifying trusted retailers, read our comprehensive guide on

[ How to Choose a Pokémon Card Online Store Without Making Mistakes]

[ The Ultimate Collector’s Guide (Jan 2026): Top 7 TCG Online Shops & Grading Essentials (PSA, BGS, CGC)]

For more Pokémon TCG updates, product spotlights, and expert tips on shopping in Japan, don’t forget to follow @buyee.unbox.picks on Instagram to stay connected with the community!

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