Inferno X (M2) and Mega Dream ex (M2a) sit right next to each other on the MEGA-era release calendar — an expansion pack in September 2025, followed by its high-class companion two months later. At our store the M2 Inferno X booster box and the M2a Mega Dream ex booster box are both currently listed. Full card lists with live prices are on our M2 card list and M2a card list pages.
M2 is the 116-card expansion pack with 5-card packs; M2a Mega Dream ex is the 250-card high-class pack with 10-card packs, with the new MA rarity and the Mega Gengar ex SAR.
M2a’s chase cards include the Mega Gengar ex SAR, and its MUR is Mega Dragonite ex 250/193; M2’s MUR is Mega Charizard X ex 116/080.
- Both boxes are currently listed: the M2 Inferno X Booster Box and the M2a Mega Dream ex Booster Box, each in Sealed and No Shrink options.
- The full M2a card list with prices is on the Mega Dream ex card list page; the M2 list is on the M2 card list page.
Store prices are as of October 22, 2026 and link to the product page; market figures are the lowest asking prices shown on SNKRDUNK on September 29, 2026 (asks, not sale prices). USD figures convert at ¥154/USD, approximate.
Mega Dream ex vs Inferno X: Two Packs, Two Price Tiers
M2 Inferno X and M2a MEGA Dream ex are not the same category of product. M2 is a standard expansion pack; M2a is a high-class pack, Pokemon Japan’s premium tier with a higher per-pack price.
| M2 Inferno X | M2a MEGA Dream ex | |
|---|---|---|
| Type | Expansion pack | High-class pack |
| Release date | September 26, 2025 | November 28, 2025 |
| Total cards | 116 (base 080 + AR12 + SR17 + SAR6 + MUR1) | 250 (base 193 + AR20 + SR9 + MA10 + SAR17 + MUR1) |
| Pack price | ¥180 / 5 cards | ¥550 / 10 cards |
| Packs per box | Typically 30 packs (secondary sources; not confirmed on the official set page) | 10 packs (confirmed — Pokemon Center Online) |
| Signature MUR | Mega Charizard X ex 116/080 | Mega Dragonite ex 250/193 |
| Defining mechanic | Fire-energy stacking built around a burst-damage theme | MA (Mega Attack Rare) — a new rarity tier debuting in this set |
The core tradeoff is this: M2’s expansion pack uses five-card packs at ¥180, but the SAR chase tier tops out at six cards. M2a’s ten-card high-class packs at ¥550 cover a much deeper set — 250 total cards against M2’s 116 — with 17 SAR slots plus the new MA tier layered on top. M2’s 116 cards break down as base 080 + AR12 + SR17 + SAR6 + MUR1, while M2a’s 250 cards break down as base 193 + AR20 + SR9 + MA10 + SAR17 + MUR1. M2 was released on September 26, 2025 and M2a on November 28, 2025. M2’s signature MUR is Mega Charizard X ex 116/080; M2a’s is Mega Dragonite ex 250/193.
The Chase Cards: Mega Charizard X ex vs Mega Dragonite ex & Mega Gengar ex
M2’s chase structure is a single card climbing three rarity tiers. M2a spreads its chase appeal across two different Pokemon at the top of the checklist.
In M2, Mega Charizard X ex is the entire show. It appears across three rarity tiers — SR, SAR, and the top-slot MUR — giving the same Pokemon three separate prints in an increasingly premium finish. The lowest PSA 10 listing of the 110/080 SAR shown on SNKRDUNK on September 29, 2026 asked ¥183,000 (~$1,188).
M2a splits its appeal instead of stacking it on one card. Mega Dragonite ex holds the top MUR slot at 250/193, but Mega Gengar ex SAR at 240/193 is a popular chase — the lowest recent PSA 10 listing shown on SNKRDUNK on September 29, 2026 asked ¥113,000 (~$734). Pikachu ex SAR at 234/193 is another SAR on the list. Mega Dragonite ex also appears at MA 232/193 and SAR 246/193, and Mega Charizard X ex has an MA print at 223/193. Where M2 puts all its chase pressure on one Pokemon across three finishes, M2a’s 17-slot SAR tier and 10-slot MA tier spread the chase across a much wider roster.
What We Currently List from M2 and M2a
| Box | Format | Store state | SNKRDUNK lowest ask, September 29, 2026 |
|---|---|---|---|
| M2 Inferno X | Sealed | Currently listed at ¥19,464 (~$126) | ¥17,000 (~$110) |
| M2 Inferno X | No Shrink | Currently listed at ¥15,891 (~$103) | ¥15,389 (~$100) |
| M2a MEGA Dream ex | Sealed | Currently listed at ¥13,723 (~$89) | ¥12,000 (~$78) |
| M2a MEGA Dream ex | No Shrink | Currently listed at ¥11,606 (~$75) | ¥10,999 (~$71) |
SNKRDUNK asks compare the Sealed rows with the standard listing and the No Shrink rows with the separate No Shrink listing. A marketplace listing is not our stock.
On the M2 Inferno X booster box, the No Shrink option is the lower-priced listing of the same contents.
Chasing M2a Singles and Boxes
The full M2a card list with prices is on the Mega Dream ex card list page. Selected PSA 10 singles, with the store state and the lowest PSA 10 listing shown on SNKRDUNK on September 29, 2026:
| PSA 10 single | Set | Store state | SNKRDUNK lowest PSA 10 listing shown |
|---|---|---|---|
| Mega Charizard X ex SAR 110/080 | M2 | Sold out | ¥183,000 (~$1,188) |
| Mega Gengar ex SAR 240/193 | M2a | Sold out | ¥113,000 (~$734) |
| Mega Dragonite ex SAR 246/193 | M2a | Sold out | ¥39,800 (~$258) |
| Mega Charizard X ex MA 223/193 | M2a | Sold out | ¥16,666 (~$108) |
| Mega Dragonite ex MA 232/193 | M2a | Sold out | ¥7,000 (~$45) |
The Mega Charizard X ex MA 223/193 and Mega Dragonite ex MA 232/193 singles are the MA rarity — the mechanic exclusive to M2a — in graded PSA 10 form. The five PSA 10 listings in the table are sold out at the time of this update — sourcing requests go through Quick Order.
Which One Fits Your Budget
The decision comes down to the set and the format:
- You want a lower-priced M2 box. The M2 Inferno X No Shrink option at ¥15,891 is the lower-priced listing of the same box.
- You specifically want M2a cards. Open the M2a Mega Dream ex booster box in Sealed or No Shrink.
- You want one Pokemon across three finishes. M2’s Mega Charizard X ex runs through SR, SAR (110/080) and the top-slot MUR (116/080).
- You want the MA rarity. M2a is the set where MA (Mega Attack Rare) debuts, with 10 MA cards in the checklist.
- You want to compare pack cost. M2 uses 5-card expansion packs; M2a uses 10-card high-class packs at a higher per-pack price.
- You want the deepest chase-card pool. M2a’s 250-card checklist with 17 SAR and 10 MA slots is structurally the bigger set.
Where to Buy M2 and M2a Cards from Japan
We ship Japanese sealed product and graded singles from Tokyo.
The M2 card list and M2a card list pages carry the full checklists with live prices; for the graded range, see our PSA 10 collection. For a deeper look at each set’s full checklist, see our M2 Inferno X complete guide and M2a MEGA Dream ex complete guide, or the pull-rate breakdowns for M2 and M2a.
Frequently Asked Questions
Is the M2a MEGA Dream ex booster box currently listed?
Yes — the M2a box and the M2 Inferno X box are both currently listed in Sealed and No Shrink options. The lowest asking price on SNKRDUNK for the M2a box on September 29, 2026 was ¥12,000 (~$78); a marketplace listing is not our stock.
What’s the difference between M2 and M2a?
M2 Inferno X is a standard expansion pack (116 cards, ¥180 per 5-card pack) built around Mega Charizard X ex. M2a MEGA Dream ex is a high-class pack (250 cards, ¥550 per 10-card pack) that introduced the MA (Mega Attack Rare) rarity.
Which is the chase card in each set?
M2’s chase card is Mega Charizard X ex, appearing at SR, SAR, and the top MUR slot. M2a’s chase appeal splits between Mega Dragonite ex at the top MUR slot and Mega Gengar ex SAR. Mega Dragonite ex also appears at MA 232/193 and SAR 246/193.
What are the MA cards in M2a MEGA Dream ex?
MA (Mega Attack Rare) is a new rarity tier debuting in M2a, with 10 cards in the set, including Mega Charizard X ex MA 223/193 and Mega Dragonite ex MA 232/193.
How many cards of each rarity are in M2 and M2a?
M2’s 116 cards break down as base 080 + AR12 + SR17 + SAR6 + MUR1, while M2a’s 250 cards break down as base 193 + AR20 + SR9 + MA10 + SAR17 + MUR1. M2 was released on September 26, 2025 and M2a on November 28, 2025.
What is the defining mechanic of M2 and M2a?
M2 is built around Fire-energy stacking and a burst-damage theme, with Mega Charizard X ex 116/080 as its signature MUR. M2a’s defining mechanic is MA (Mega Attack Rare), a new rarity tier debuting in the set, with Mega Dragonite ex 250/193 as its signature MUR.
How many packs come in each box?
M2a’s box contains 10 packs, confirmed by Pokemon Center Online. M2’s box is typically packaged as 30 packs based on secondary sources, though this isn’t confirmed on the official set page.
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