Pokémon Delta Reign – Build & Battle Box

The Build & Battle Box is the box used at Pokémon's prerelease tournaments, where everyone builds a deck from what is in the box. It contains four booster packs from Delta Reign, a foil promo card and a 40-card base to which the cards from the packs are added, making a playable 60-card deck.

Delta Reign is the sixth English Mega Evolution expansion. Mega Rayquaza ex leads the set together with Mega Golurk ex, Mega Malamar ex and Mega Golisopod ex, and the set has new Legendary Stadium cards that are played in pairs and form a shared image when placed side by side.

The prerelease tournaments are held from 24 October to 1 November 2026, and the box is released in regular shops on 20 November 2026. Which of the promo cards is in the box cannot be chosen, and the pack artwork may differ from the image.

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This is the English edition. The image shows a booster pack from Delta Reign, one of the packs in the box, as we do not have an image of the Build & Battle Box yet.