Subject to availability each Pre-release Box includes:
Use your Pre-release pack and boosters to build a 40 card deck.
Each Player will also receive 3 additional booster packs at the end of the event. Players must complete all three rounds of the pre-release to receive the additional boosters.
Registration starts at 18:00.
Deck building starts at 18:30
For more details about how a prerelease works: you can check it here:
Pokémon TCG Prerelease Overview