The Stellar Crown Build and Battle Box is a Pokémon TCG product containing a 40-card pre-built deck, four Stellar Crown booster packs, one of four unique foil promo cards, and a code card for Pokémon TCG Live. This box is designed for both collectors and competitive play, particularly at prerelease events, and features the new Stellar Crown expansion with Pokémon like Terapagos ex, Cinderace ex, and Hydrapple ex
 
Build and Battle description
Purpose: 
Primarily used for "Build and Battle" prerelease events, where players build their decks using the contents of the box and the booster packs provided. 
Contents:
40-card deck: A ready-to-play deck that can be used as is or modified. It includes key cards from the Stellar Crown expansion as well as previous sets. Booster Packs: Four booster packs from the Pokémon TCG: Scarlet & Violet—Stellar Crown expansion, which contain cards to use for building the deck or for adding to a collection. Promo Card: One of four exclusive foil promo cards that feature the Stellar Crown stamp.These are a major draw for collectors. Code Card: A code to be used in the online Pokémon TCG Live game. Building tips: Some boxes also include tips and a checklist to help new players build their decks. 
Gameplay focus: 
The Stellar Crown expansion introduces the Terastal phenomenon, with a focus on the Legendary Pokémon Terapagos ex and other powerful Pokémon ex, such as Cinderace ex, Lapras ex, and Hydrapple ex.