Play at a Pokémon TCG: Mega Evolution—Delta Reign Prerelease Event - Pokemon.com

Automated excerpt

Each Build & Battle Box contains four Mega Evolution—Delta Reign booster packs, a 40-card, ready-to-play deck featuring key cards from current and prior expansions, and one of four unique foil promo cards. Magmortar’s Buddy Boost Ability allows you to attach a Basic Fire Energy card, a Basic Lightning Energy card, or one of each to Magmortar or Electivire. Adventure Lantern can help here, letting you pull Lightning Energy and Fire Energy from your deck.

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