The Obsidian Flames Build & Battle Stadium is a box set for two players to build and immediately play Pokémon TCG decks, containing two individual Build & Battle Boxes, 11 booster packs total, and other supplies. Each Build & Battle Box includes a 40-card deck with an exclusive foil promo card, allowing players to start with ready-made decks that can be customized using cards from the booster packs. 
 
Build & Battle Stadium contents
Two Build & Battle Boxes: Each box contains a 40-card, ready-to-play deck and one of four exclusive foil promo cards. 
Booster Packs: In total, there are 11 booster packs from the Obsidian Flames expansion (two in each Build & Battle Box, plus three extra). 
Basic Energy cards: A large supply of 121 Basic Energy cards is included. 
Other accessories: The set comes with 6 damage-counter dice, 1 competition-legal coin-flip die, 2 coin condition markers, and a collector's box to store everything. 
Online code: A code card is provided for the Pokémon TCG Live online platform. 
How it works
Build: 
Players take one of the 40-card decks and add cards from the booster packs to create a 40-card deck for their chosen deck. 
Battle: 
Using their customized decks, the two players can battle immediately, and the game includes all necessary accessories