Union Arena TCG: Thousand Year Blood War - Booster BoxConfiguration: 12 Cards per Pack 16 Packs per Display 16 Displays per Case Establishment of authentic TCG rule The game adopts authentic TCG rules that satisfy even TCG users. utilizing two lines on the board called "FRONT LINE" "ENERGY LINE" . Furthermore. the world view of the titles is recreated based on the relationship between the two areas and the ability to line up many characters make the rules enjoyable for IP fan groups as well. Powerful