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Pokémon Delta Reign UK: ETB, booster box, prices and stock

· updated · 8 min read
By Luke Hackett, founder of Paragn Network, reselling full time since 2012

Delta Reign is the sixth main expansion of the Mega Evolution series and the last main set of 2026. It released in English on 6 November 2026, including the UK, with the Build & Battle Box following at individual retail on 20 November 2026 and the Mega Rayquaza ex Premium Tournament Collection on 12 February 2027. This page covers the full product line, UK retail prices and how to buy restocks at RRP.

What Delta Reign is

Mega Evolution: Delta Reign is the English release of the Japanese set Storm Emeralda. Its mascot is Mega Rayquaza ex, with Mega Golurk ex, Mega Malamar ex and Mega Golisopod ex in support. The set introduces Legendary Stadiums, which are Stadium cards that come in pairs; a pack that contains one half of a pair contains both.

The official card list on pokemon.com has 141 cards before secret rares. That is well under the 295 cards of Ascended Heroes, making Delta Reign a normal-sized main expansion.

Key dates

Delta Reign launched in the UK on 6 November 2026, with follow-up products scheduled through November 2026 and February 2027 on pokemon.com.

Delta Reign prerelease and Build & Battle Box

Delta Reign prerelease events ran from 24 October to 1 November 2026 at local game stores, and the standalone Build & Battle Box reaches general retail on 20 November 2026. Our Pokémon prerelease guide explains how a prerelease event works.

  • Prerelease window. 24 October to 1 November 2026 at Play! Pokémon stores.
  • Retail release. 20 November 2026 ($21.99 USD; UK RRP not yet confirmed).
  • What you get. Four Delta Reign booster packs, a 40-card ready-to-play deck, one of four foil promos (Masquerain, Magmortar, Enamorus or Kommo-o) and a Pokémon TCG Live code card.

The product line

The Delta Reign line includes the launch wave from 6 November 2026 plus the November and February companion products listed on pokemon.com:

  • Booster display box. 36 packs of 10 cards plus one Basic Energy each (out since 6 November 2026).
  • Elite Trainer Box. Nine packs and a full-art foil Kyogre promo, plus sleeves, energy cards, dice and a storage box (out since 6 November 2026).
  • Pokémon Center Elite Trainer Box. Eleven packs and two Kyogre promos, one of them stamped with the Pokémon Center logo (out since 6 November 2026).
  • Booster bundle. Six packs with no extras (out since 6 November 2026).
  • Blisters. Seel blister, Spritzee checklane blister and 3-pack blisters (out since 6 November 2026).
  • Build & Battle Box. Four packs, a 40-card deck and one of four foil promos (general retail from 20 November 2026).
  • Mega Rayquaza ex Premium Tournament Collection. Releasing 12 February 2027 ($49.99 USD; UK RRP not yet confirmed), with one full-art foil Mega Rayquaza ex promo, three foil Rayquaza Spirit Link Trainer cards, 65 Mega Rayquaza sleeves, a deck box, a metallic coin, condition markers, tournament dice and six booster packs.

The sensible buy

The booster bundle (£24.99) is the cheapest per-pack way to open Delta Reign, while the Elite Trainer Box (£49.99) is the main sealed pick with nine packs and the full-art Kyogre promo. The Pokémon Center ETB adds two packs and a second Kyogre promo with the Pokémon Center stamp, which is only sold direct by Pokémon Center UK.

Because the main set is already out and in print, do not pay above RRP for sealed boxes from third-party sellers. Wait for UK retail restocks at £49.99 for the ETB and £24.99 for the booster bundle, and only pre-order the 12 February 2027 Mega Rayquaza ex Premium Tournament Collection at UK RRP. Are Pokémon Elite Trainer Boxes worth it covers why buying at or below RRP is the whole test.

Card list and headline cards

The official Delta Reign checklist numbers 141 cards in the main set before secret rares. Mega Rayquaza ex is the set mascot, joined by Mega Golurk ex, Mega Malamar ex, Mega Golisopod ex and the paired Legendary Stadium cards.

In the three main Mega Evolution sets before Delta Reign, the mascot's special illustration rare and Mega hyper rare took two of the three highest single-card prices: Mega Zygarde in Perfect Order, Mega Greninja in Chaos Rising and Mega Darkrai in Pitch Black. Early single prices always settle in the weeks after launch as more boxes are opened, so check sold UK listings in our Pokémon price checker guide before buying singles.

UK retail and RRP

UK retail prices for Delta Reign match the rest of the Mega Evolution series: £49.99 for the standard Elite Trainer Box, £24.99 for the six-pack booster bundle, £13.99 for the 3-pack blister and £154.00 to £154.44 for the 36-pack booster box.

On 7 November 2026, UK retailer Zatu listed the Elite Trainer Box at £49.99, the booster bundle at £24.99, the 36-pack booster box at £154.00 and the 3-pack blister at £13.99, with initial launch stock sold out. Total Cards gives a UK RRP of £13.99 for the 3-pack blister and £154.44 for the booster box, while listing the Elite Trainer Box at £69.95, about £20 above RRP. Hold your orders to the standard £49.99 ETB and £24.99 booster bundle bracket at Smyths and Argos.

Buying restocks and upcoming products

With the 6 November launch wave out, buying Delta Reign at RRP comes down to catching restocks at the national chains and watching pre-orders for the February 2027 collection.

UK retail restocks land in waves after launch week. Check Smyths, Argos, Tesco and Amazon UK (only when dispatched and sold directly by Amazon).

Pokémon Center UK occasionally restocks stamped ETBs from cancelled orders and takes pre-orders for upcoming boxes such as the 12 February 2027 Mega Rayquaza ex Premium Tournament Collection. Pre-orders take bank cards only, not PayPal, Apple Pay or gift cards, with one pre-order item per order charged when the item ships. Our guide to the Pokémon Center UK queue and pre-orders covers the rules.

Sealed versus open

Delta Reign has been in print since 6 November, and main expansions are printed to demand. Sealed product has a ceiling at retail price for as long as that is true. Buy it at RRP to open or to sell into short gaps. Do not buy it above RRP on the secondary market; which Pokémon sets hold value explains why a set selling out on launch weekend is a supply bottleneck, not a sign of long-term scarcity. Sealed versus singles covers the alternative.

How to catch UK restocks at RRP

Follow these steps to buy Delta Reign at retail price without paying a markup.

  • Stick to RRP. Pay no more than £49.99 for the standard ETB and £24.99 for the booster bundle.
  • Keep accounts signed in at Smyths, Argos, Tesco, Amazon UK and Pokémon Center UK.
  • Watch the companion dates. The Build & Battle Box reaches retail on 20 November 2026 and the Mega Rayquaza ex Premium Tournament Collection on 12 February 2027.
  • One order per retailer. Household limits are enforced on restocks and duplicate orders get cancelled.
  • Use a stock alert. Pokémon restock alerts in the UK explains how live monitor notifications catch UK restocks before listings sell out.

Common questions

When was the Delta Reign release date in the UK?

Mega Evolution: Delta Reign released in English on 6 November 2026, including the UK, after prerelease events from 24 October to 1 November 2026. The standalone Build & Battle Box follows at retail on 20 November 2026, and the Mega Rayquaza ex Premium Tournament Collection releases on 12 February 2027.

When does the Delta Reign Build & Battle Box come out?

Delta Reign prerelease events ran from 24 October to 1 November 2026 at local game stores, and the individual Build & Battle Box releases at retail on 20 November 2026 ($21.99 USD; UK RRP not yet confirmed). It holds four booster packs, a 40-card deck and one of four foil promos.

What is in Delta Reign?

Delta Reign is the English release of the Japanese set Storm Emeralda. Its mascot is Mega Rayquaza ex and it introduces Legendary Stadiums, paired Stadium cards that come together in one pack. The official card list on pokemon.com has 141 cards before secret rares.

What is the Delta Reign ETB promo?

The Elite Trainer Box comes with nine packs and one full-art foil Kyogre promo. The Pokémon Center Elite Trainer Box has 11 packs and two Kyogre promos, one with a Pokémon Center logo.

When does the Mega Rayquaza ex Premium Tournament Collection release?

The Mega Rayquaza ex Premium Tournament Collection releases on 12 February 2027 at $49.99 USD (UK RRP not yet confirmed). It includes a full-art foil Mega Rayquaza ex promo, three foil Rayquaza Spirit Link cards, 65 sleeves, a deck box, a coin, dice and six booster packs.

How much does Delta Reign cost in the UK?

UK retail prices are £49.99 for the standard Elite Trainer Box, £24.99 for the six-pack booster bundle, £13.99 for the 3-pack blister and £154.00 to £154.44 for the 36-pack booster box. Across the Mega Evolution series, Elite Trainer Boxes are £49.99 at Smyths and £50.00 at Argos.

Where this fits

Delta Reign closes the 2026 run that started with Ascended Heroes and ran through Perfect Order, Chaos Rising, Pitch Black and the 30th Celebration set, ahead of the 2027 Pokémon TCG sets. For the shops, start with where to buy Pokémon cards in the UK. Paragn Network monitors more than 1,000 UK retailers so members see restocks and new product listings as they go live.

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