MEGA Dream ex: release date, pack format, new “Mega Attack”

Japan’s end-of-year High Class Pack is here. MEGA Dream ex brings a 10-card pack format with a guaranteed ex, a flood of reprints, a stack of secret rares and a brand-new “Mega Attack” rarity. Below is what is confirmed, what is new, and which cards already look like day-one chases.

What is MEGA Dream ex and when does it release

MEGA Dream ex is Japan’s 2025 High Class Pack, a premium year-ender built to reprint key cards while adding flashy new rarities and showcase hits. It releases in Japan on Friday 28 November 2025. The set stars Mega Dragonite ex on marketing and card reveals.

Quick context: High Class Packs typically condense a year of staples into one product so players can catch up, then layer on special foils, big secret rare waves and occasional god packs. Bulbapedia lists MEGA Dream ex as a High Class Pack with a focus on Mega Evolution Pokémon ex.

Pack format and set size

10 cards per booster rather than the usual five for Japanese packs.
Guaranteed Pokémon ex per pack, which is the headline value proposition for this release.
193 cards in the main set before secret rares, most of which are reprints from the last year to improve availability.

Rarities, foils and “god packs”

High Class Packs are known for large secret rare line-ups, special reverse holos and occasional god packs. MEGA Dream ex follows suit and introduces reverse holos themed around Energy types and Poké Ball patterns for extra collectability.

New rarity: “Mega Attack” rares

This set debuts Mega Attack rares, a comic-book styled treatment that prints the attack name over the artwork. It is a deliberate throwback to the XY-era Mega cards. A neat twist for collectors of both languages: English cards use Japanese attack text, while Japanese cards use English attack text on these prints.

Newly revealed cards at a glance

These highlights were shown with translations and images:

Mega Eelektross ex
A Stage 2 Lightning attacker with a split-damage option and a heavy hit that can Paralyse if you discard Lightning Energy. Mega ex rule applies, so it gives up three prizes on a knockout.
Dratini and Dragonair
Dragonair’s Evolution Discovery ability finds an Evolution Pokémon if it has Energy attached, smoothing your lines into Mega Dragonite ex.
Thick Scale
A Tool that reduces damage taken by your Dark-type Pokémon from Grass, Fire, Water and Lightning attackers, supporting Dark builds in the new meta.
Canari
A Supporter that searches your deck for four Lightning-type Pokémon at the cost of a discard, powering Lightning swarms and evolution chains.

Early chase cards everyone will be watching

Mega Gengar ex Special Illustration Rare
Already causing a stir thanks to standout art and character appeal. Expect day-one premium pricing and strong long-term interest.
Marnie’s Grimmsnarl ex Special Illustration Rare
Marnie collectors rarely skip a release. This one is front-page material for social reveals and buy lists.
Mega Dragonite ex
Set mascot status, clean art direction and new “Mega Attack” treatments give Dragonite broad appeal across languages.

Tip for UK buyers who collect Japanese: High Class Pack mascots and popular character SARs tend to be the most liquid singles and the first to spike if supply is tight. Track reveal days and secure copies early if you care about specific prints.

Will these cards come to English

PokéBeach reports that English-language cards from MEGA Dream ex will arrive in a special English set on 30 January. The English product name was not included in the initial tease, so treat this as a date window rather than a full announcement. We will update once The Pokémon Company publishes English product pages.

What this means for players and collectors

Players: the guaranteed ex per pack and the reprint mix should make it easier to access staples in Japanese. Keep an eye on Dragonite lines for smooth evolution flow and on Lightning tools like Canari for deck consistency ideas.
Collectors: focus on Mega Attack rares, mascot lines and character SARs. Reverse holo Energy and Poké Ball patterns add a fun parallel chase for binder pages. If you prefer English, mark late January as a likely window for equivalent cards.

Key takeaways

Date: Japan release on 28 November 2025. High Class Pack format with 10-card boosters and a guaranteed ex.
Set size: 193 cards before secrets, with a large reprint backbone.
New feature: Mega Attack rares with comic-book text styling, language-swap twist between English and Japanese.
Chases: Mega Gengar ex SAR, Marnie’s Grimmsnarl ex SAR, Mega Dragonite ex across treatments.
English plans: cards are slated to appear in a special English set on 30 January according to PokéBeach, with the English name still to be confirmed.

Conclusion

MEGA Dream ex looks like a classic High Class Pack: easy access to ex cards in every pack, big secret rare waves, and a fresh rarity that should photograph beautifully. If you collect Japanese, this is a day-one set to short-list. If you collect English only, keep late January on your calendar and watch for official product pages. We will update this guide as new cards and English details drop.