OP18 is an upcoming English One Piece Card Game booster release in Bandai’s main OP-series line. Final set details are still pending, so the confirmed identity is its sealed English booster format within the ongoing One Piece TCG release cycle. Main OP-series boosters traditionally expand the game through Leader cards, character cards, events, stages, rarity treatments and strategy support across randomized packs.

The booster box format keeps the release in a sealed display of packs, preserving the standard One Piece opening experience across multiple boosters from the same set.