The sixth English Mega Evolution set has been officially unveiled, and it’s a big one. Delta Reign, starring Mega Rayquaza ex, brings together multiple Japanese sources, a brand-new Stadium mechanic, and over 140 cards when it lands on 6 November 2026.
Products, Prereleases, and What to Expect
Prereleases will run from 24 October to 1 November, giving players an early crack at the new cards before full release day. Preorders are expected to open on PokemonCenter.com in September, roughly a month ahead of launch, based on the timing of previous Mega Evolution drops.
Four booster pack wrapper designs have been shown off, each featuring one of the set’s headline Mega Evolutions: Mega Rayquaza, Mega Golisopod, Mega Golurk, and Mega Malamar. Product images for the full lineup have also started appearing, including the Elite Trainer Box and additional collection boxes.
The Elite Trainer Box will feature a Kyogre Illustration Rare as its promo card, originally from Japan’s Storm Emeralda set. That card has been cut from the main English set list and repurposed as the ETB exclusive.
Several English card reveals have already surfaced, giving collectors and players their first proper look at the set’s contents.
Here’s what’s confirmed inside Delta Reign:
- Over 140 cards in total
- Four new Mega Evolution Pokemon ex: Mega Rayquaza, Mega Golurk, Mega Malamar, and Mega Golisopod
- Six Pokemon ex
- More than a dozen Trainer cards, including three new Legendary Stadiums
- 14 illustration rare Pokemon
- 17 ultra rare Pokemon and Trainer cards
- Six special illustration rare Pokemon and Supporter cards
Legendary Stadiums: A Nod to the LEGEND Era
Perhaps the most exciting new mechanic in Delta Reign is the introduction of split Stadium cards, each carrying “Legendary” in their name. These two-part cards hark back to the beloved LEGEND cards from the HeartGold & SoulSilver era, think Lugia LEGEND, where you needed both halves to play the card. The same restriction applies here: because both halves share the same name, you can only ever play two complete sets of a given Legendary Stadium in a deck. It’s a flavourful throwback that should create some interesting deckbuilding decisions.
A Multi-Source English Set
Delta Reign is notable for being the first English set since Phantasmal Flames to combine multiple Japanese sources, rather than being a near 1:1 copy of a single Japanese release. The set pulls together cards from three distinct pools:
- The 110+ cards from Japan’s Storm Emeralda set, which released on 31 July 2026
- 30 unique cards from the Japanese MEGA Starter Decks featuring Eevee ex, Zoroark ex, and Meowscarada ex, released alongside Storm Emeralda
- Unreleased Japanese Gym promos, including Grisham (May 2026) and Mega Tatsugiri ex and Lida (August 2026)
This approach means Western players will get a chunkier, more varied set in a single release, bundling content that Japanese collectors had to chase across several products and events.
With prereleases kicking off in late October and preorders likely dropping next month, Delta Reign is shaping up to be one of the most anticipated Mega Evolution releases yet. Between the Legendary Stadium mechanic, four new Mega exs, and that gorgeous Kyogre ETB promo, there’s plenty to look forward to this autumn.
FAQ
What are the Legendary Stadium cards in Delta Reign?
Legendary Stadiums are new split Stadium cards that require both halves to play, similar to the LEGEND cards from the HeartGold & SoulSilver era. Because both halves share the same name, you can only play two sets of each card in a deck. Delta Reign includes three new Legendary Stadiums.
What Japanese sets are included in Delta Reign?
Delta Reign combines over 110 cards from Japan's Storm Emeralda set, 30 unique cards from the Japanese MEGA Starter Decks featuring Eevee ex, Zoroark ex, and Meowscarada ex, plus unreleased Gym promos including Grisham and Mega Tatsugiri ex and Lida.
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