Japanese MEGA Dream ex (M2a): prices, chase cards and box guide

The short version

High Class Pack: MEGA Dream ex, set code M2a, is the Japanese set whose cards went into English Ascended Heroes. As of mid-September 2026 a Japanese booster box sells for about $99 on TCGplayer in the US and holds 10 packs of 10 cards. A loose pack is about $11. The chase card is Mega Gengar ex #240 at about $363, followed by Pikachu ex #234 at about $263 and two Mega Dragonite ex cards at about $193 and $194. Six cards clear $50, and the median listing is worth about 54 cents.

Pullnomics has no pull rate data for Japanese packs and computes no expected value for Japanese sealed product, so this guide sticks to prices, the confirmed configuration and what is guaranteed. If you want one specific card, the single is the only purchase with a known outcome. A box is 100 cards with a Pokémon ex in every pack and no promise of any card named above.

What MEGA Dream ex is

The official product page gives the release date as November 28, 2025, the price as 550 yen per pack including tax, and the contents as 10 cards per pack, inserted at random. It does not state a box size. Bulbapedia's set page supplies that: 10 packs per box, with one card in every pack guaranteed to be a Pokémon ex or a Mega Evolution Pokémon ex. Ten packs at 550 yen puts a box at 5,500 yen by arithmetic. A standard Japanese box is usually 30 packs of 5 cards, and our Japanese versus English guide covers how High Class Packs break that pattern.

The numbered set is 193 cards, and secret cards run from 194 to 250. The 57 secrets are 20 Art Rares (AR), 9 Super Rares (SR), 10 Mega Attack Rares (MA), 17 Special Art Rares (SAR) and one MUR, which the site lists as Mega Ultra Rare and English calls Mega Hyper Rare. MA is new with this set.

The site lists 486 entries for M2a, not 250. TCGplayer lists each mirror pattern printing as its own card, with the pattern in brackets, such as Duskull (Dusk Ball Pattern). Bulbapedia also notes that cards other than Pokémon ex and Mega Evolution Pokémon ex carry no rarity symbol in this set, which is why 373 entries show no rarity here.

Like other High Class Packs, this one is heavy on reprints. Bulbapedia says its cards are included in Ascended Heroes, which arrived on January 30, 2026, nine weeks later, with 295 cards. The mapping is partial: Ascended Heroes also draws on a second Japanese product, the Start Deck 100 Battle Collection, and that matters for the comparison below. Bulbapedia also lists Traditional Chinese, Thai, Korean and Indonesian releases of this set, so confirm the language from a listing's photos, not from the set name in its title.

The numbers

These are the live figures from the MEGA Dream ex set page. Every price is the US TCGplayer market price for the Japanese printing, not a price in Japan.

The median entry is worth about 54 cents. Of 486 entries, 21 clear $10 and six clear $50. One of every listed printing at market costs about $1,892.

The value sits in 18 cards. The 17 SARs average about $75 and the single MUR is about $194, which together comes to about $1,474, roughly 78 percent of the whole list. The top five cards alone hold about 61 percent.

The 10 MAs average about $11 and the 20 ARs about $2.74. The nine SRs average 92 cents, and the best of them, Canari #219, is about $4. The 27 Double Rares, the regular Pokémon ex cards that can satisfy the one per pack guarantee, average 38 cents. The priciest pattern card, Team Rocket's Mimikyu (Team Rocket Pattern) #79, is about $6.69.

The site's Japanese price history begins on September 18, 2026, so the charts on these pages are short for now.

Chase cards

These are the eight most valuable cards in the set right now.

Mega Gengar ex #240 at about $363 stands clear of Pikachu ex #234 at about $263. Then come the two Mega Dragonite ex cards, priced almost identically even though one is the set's only MUR: the gold #250 is about $194 and the SAR #246 about $193. Team Rocket's Mewtwo ex #237 at about $134 and N's Zoroark ex #242 at about $70 complete the group above $50.

Then comes a step down. Iono's Bellibolt ex #236 is about $35, Steven's Metagross ex #245 about $33 and Marnie's Grimmsnarl ex #243 about $32. The best Mega Attack Rare, Mega Charizard X ex #223, is about $31, and the Mega Gengar ex MA #230 about $24. The best Art Rare is Psyduck #199 at about $17.

The 17 SARs are far from equal: five clear $50, and at least six cost less than $19.

Japanese versus English prices

These pairs match by name and rarity role: SAR with the English Special Illustration Rare (SIR), AR with Illustration Rare, MUR with Mega Hyper Rare. Prices are as of mid-September 2026, Japanese first.

• Mega Gengar ex: SAR #240 about $363, English SIR #284 about $871.
• Pikachu ex, James Turner artwork: SAR #234 about $263, English SIR #277 about $313.
• Mega Dragonite ex: SAR #246 about $193, English SIR #290 about $559.
• Mega Dragonite ex, gold: MUR #250 about $194, English Mega Hyper Rare #295 about $218.
• Team Rocket's Mewtwo ex: SAR #237 about $134, English SIR #281 about $285.
• N's Zoroark ex: SAR #242 about $70, English SIR #286 about $150.
• Psyduck: AR #199 about $17, English Illustration Rare #226 about $64.

In every matched pair the English copy is priced higher today, from about 1.1 times for the gold Dragonite to almost 4 times for Psyduck. That describes two markets, not a verdict on either: they are different products with different buyers, as the Japanese versus English guide explains.

Two English cards stay out of the comparison. The most expensive card in Ascended Heroes, Pikachu ex #276 at about $960, is not the twin of M2a #234: Bulbapedia traces it to the Start Deck 100 Battle Collection and pairs #234 with English #277. The English Mega Charizard Y ex #294, a Mega Hyper Rare at about $356, has no twin here either, because the only MUR in M2a is Mega Dragonite ex. In all, 19 English cards clear $50 against six Japanese ones. Our Ascended Heroes guide covers the English set.

Sealed product

The booster box is about $98.78, which at 10 packs is about $9.88 per pack. A loose pack is about $10.97, so ten loose packs would cost about $110 and the box saves about $11. For scale, an English Ascended Heroes pack is about $13.51, also 10 cards, and that set has no booster box at all.

What a box guarantees, from sources we can name: 10 packs, 100 cards, and one Pokémon ex or Mega Evolution Pokémon ex per pack. The official page promises nothing per box. PokeGuardian, a hobby news site, reported that a box holds three ARs, one Item, Tool or Stadium SR and one MA, with a further wildcard slot (a Supporter SR, an SAR or the MUR) possible but not guaranteed. That is a report, not a promise from The Pokémon Company. If it holds, the guaranteed slots are the inexpensive tiers, and the SARs and the MUR appear in no guarantee anyone has published.

There is no EV figure for this box. The expected value the site shows for an English Ascended Heroes pack rests on English pull rates and English prices, and says nothing about an M2a pack.

On packaging, our resealed product guide notes Screen Rant's March 2025 report that Pokémon Center stores in Japan remove the plastic wrap from boxes at sale. So a Japanese box without shrink wrap is not evidence of tampering, but it leaves no outer seal to inspect. Importers' rule of thumb is to check that the cardboard tear strip is intact.

How to buy it

Every Japanese card and sealed product page has two eBay buttons. The first opens eBay filtered to Buy It Now listings from US sellers whose titles say Japanese, JPN or JP, with proxies, lots and other languages excluded, sorted by price plus shipping, and capped at 12 percent under market on the item price. The second drops the cap. Both are affiliate links. The block below opens those searches for the M2a booster box and booster pack, already filtered to Japanese listings under the below-market price.

The cap is on the item price, so add shipping yourself. A listing only counts as below market when the landed price is at least 12 percent under: about $87 delivered for the box, about $319 for a Near Mint Mega Gengar ex SAR. If the capped search is empty, nothing is listed below market at that moment: open the second button, and use eBay's "Save this search" so eBay emails you new matches.

The buttons show US sellers, so there is no import step. If you buy from Japan instead, shipments of any value can carry import charges since August 29, 2025, so check the import charges line at checkout.

For singles, site prices are raw Near Mint. Under the methodology, a Lightly Played copy is measured against 85 percent of market, so a Lightly Played Mega Gengar ex SAR must land near $271 to count. eBay's Authenticity Guarantee applies to single cards sold for $200 or more, which at today's prices takes in Mega Gengar ex and Pikachu ex. The two Dragonites sit just under the line, and boxes and packs are not eligible, so look for the mark on the listing itself. Confirm Japanese text and the Japanese back in the photos. The fake card guide covers the checks.

Who it suits

M2a suits a collector who wants this artwork and does not need English text. It also suits anyone building the 250 card set, secrets included, because most of the expense is in 18 cards you can price one at a time.

It suits pack openers who like a short session with a Pokémon ex in every pack. Budget it as entertainment: nothing on this site can tell you what a box returns on average.

It does not suit US tournament players. Play! Pokémon treats the Japanese card back as marked, so these cards are not legal at Championship Series events here.

Bottom line

MEGA Dream ex is a 10 pack box at about $99, with a Pokémon ex in every pack and no official guarantee above that. About 78 percent of the list's value sits in 17 SARs and one gold Mega Dragonite ex, led by Mega Gengar ex at about $363. Every matched English copy costs more today, and the dearest English Pikachu ex is a different card. For a specific card, start from the set page or the Japanese index and use the eBay buttons on the card page. For a box, compare the landed price with about $87, check the tear strip, and open it for fun.