OP TCG Deck Builder

Grand Line Deck is an unofficial deck-building and collection utility for players of the One Piece Card Game.

Build your decks, organize your cards, review your strategy, and keep your collection close at hand.

DECK BUILDER

• Choose your leader and start building
• Search cards by name, card number, ability, color, type, cost, power, or counter
• Build within deck limits while receiving helpful validation feedback
• View your deck’s DON!! curve
• See which cards you own and which cards are still missing
• Export, back up, and restore your deck data

COLLECTION TRACKER

Keep track of the cards you own and understand what you still need for your decks. Your collection is saved locally on your device and can be managed without creating an account.

MATCH LOG

Record your matches, note your opponents, track wins and losses, and review your performance over time.

MECHANICS AND RULES

Read simple explanations of common card mechanics and search the in-app reference. You can also open the official rules website directly from the app.

OFFLINE-FIRST EXPERIENCE

After the card catalogue has been synchronized, your decks, collection, match history, and previously loaded card data remain available offline. Refresh the catalogue whenever new data becomes available.

INDEPENDENT FAN PROJECT

Grand Line Deck is an independent fan-made utility. It is not affiliated with, endorsed by, sponsored by, or supported by Bandai, Eiichiro Oda, Shueisha, Toei Animation, or any official One Piece Card Game partner.

Card data and images are supplied through an independent third-party data service. Availability and accuracy may vary. Grand Line Deck does not claim ownership of the underlying names, artwork, card text, or game-related content. All such rights belong to their respective owners.