By Crossave · Updated: August 2026

One Piece card codes: how to read them (and why they move the price)

Anyone new to the One Piece Card Game runs into codes like OP01-001 or ST01-006 and usually ignores them, searching for the card by name instead. That is the fastest way to buy the wrong version: in this game the very same code can point to two cards with the same name, the same numbering and very different prices. Understanding how the code is built — and what it does NOT tell you — is the difference between an informed purchase and a surprise.

How the code is built

The format never changes: a set prefix, then a dash, then the card's number within that set. In OP01-001, "OP01" is the first booster set in the series and "001" is the first card in it. Prefixes starting with ST mark Starter Decks (ST01-006 is the sixth card of the first starter), and EB marks extra booster expansions.

This is a different logic from Pokémon or Magic, where the card number is written as a fraction (4/102, meaning "card four of 102"). Here the set total never appears: the code identifies the card absolutely. That is why, when looking up the price of a One Piece card, typing the exact code is far more reliable than typing the character's name — there are dozens of different Luffy cards.

Rarities, and why the code alone isn't enough

The main rarities are Leader (L), Common (C), Uncommon (UC), Rare (R), Super Rare (SR) and Secret Rare (SEC). Leader cards are recognisable at a glance even from the back, which is red rather than the usual play back, and by the Life value printed at the bottom right.

The thing that confuses new collectors most, though, is something else: Parallel cards. A Parallel is an alternative version of an existing card, with different artwork and layout — it often looks like a completely different card — but it carries the SAME catalogue number as the standard version. The tell is small and sits at the bottom right: a star above the rarity letter. If you are comparing prices and find two listings with the same code at wildly different figures, this is almost always the explanation.

In everyday use "alternate art" (AA) and "parallel" are treated as near-synonyms: alternate arts are in practice the most common type of parallel. When buying, look at the listing photo and find the star — don't trust the code in the title on its own.

Japanese or English: what actually differs

The One Piece Card Game releases in Japan first and in the international English edition afterwards. The two share numbering and artwork, but they are separate markets with separate prices: the same card can cost noticeably more or less depending on the edition and the moment, and Japanese cards reach the market months before the English ones.

For anyone buying from abroad the practical point is twofold. First, make sure the listing states explicitly which edition you are buying — many titles show only the code, which is identical in both languages. Second, if you order from Japan, the listed price is not what you pay: shipping, import duty and VAT or sales tax are added on arrival, and how much depends on where you live. That is exactly the calculation Crossave runs automatically when it compares shops across countries, so the comparison is between final costs rather than between prices that cannot be compared.