OP, ST, EB, PRB, P: One Piece TCG set codes explained
OP17-001 SEC tells you the set, the position, the rarity and roughly the price. It is the most information-dense string in the hobby.
The short version
- The prefix identifies the product line: OP for main boosters, ST for starter decks, EB for extra boosters, PRB for premium boosters and P for promos.
- The number after the prefix is the set's sequence number, and the number after the dash is the card's position within that set.
- The rarity code — C, UC, R, SR, SEC, L and others — appears separately from the card number.
- Alternate arts share the card number of the original printing and are distinguished by a parallel marker, not by a new number.
- The same card number in Japanese and English is the same card, but they are separate market items with separate prices.
Every One Piece card carries an identifier that looks like OP07-119 or ST13-002 or P-045. Once you can read it, you can price a card, find it in a database, check whether it is legal, and tell an alternate art from a reprint — all without knowing anything about the character on it.
The prefix
| Prefix | Means | Example |
|---|---|---|
| OP | Main booster set | OP07-119 |
| ST | Starter deck | ST13-002 |
| EB | Extra booster | EB02-014 |
| PRB | Premium booster | PRB01-050 |
| P | Promo card | P-045 |
The prefix is also what tells you where a card came from and therefore how many exist. A card that only ever appeared in one starter deck has a very different supply profile from one printed across a whole main set — which is a large part of why reprints move prices so sharply.
The numbers
- The set number follows the prefix. OP17 is the seventeenth main booster; ST13 is the thirteenth starter deck.
- The card number follows the dash and is the card's position in that set's list. Low numbers are usually Leaders, then Characters in colour order, with Events and Stages later.
- Promos have no set number, only a running card number: P-045 is simply the forty-fifth promo.
Rarity codes
| Code | Rarity | Roughly |
|---|---|---|
| C | Common | Several per pack |
| UC | Uncommon | A few per pack |
| R | Rare | About one per pack |
| SR | Super Rare | A few per box |
| SEC | Secret Rare | Rare — the usual chase slot |
| L | Leader | One per pack in most configurations |
| SP / Manga / TR | Special treatments and chase variants | Low |
Rarity is not the same as value: a common that every deck needs four of can outprice a super rare nobody plays. Rarities explained covers the distinction, and Treasure Rare covers the top of the ladder.
Alternate arts and parallels
This is the part that catches people out on marketplaces. An alternate art keeps the card number of the original. OP05-060 and the alternate art of OP05-060 are the same card for deck-building purposes and are printed with the same identifier — the difference is a parallel marker and the artwork itself, and the price gap between them can be a factor of fifty.
- Check the card number to know which card it is.
- Check the rarity code and parallel marker to know which printing it is.
- Check the language and the back to know which market it belongs to.
Getting step two wrong is the most expensive mistake in casual buying and selling. Alternate art versus manga rare walks through the visual differences.
The card number says what it does. The rarity code says what it costs. Never confuse the two when you are buying.
Identifying an unknown card in ten seconds
Read the identifier at the bottom of the card
Prefix, set number, dash, card number. That string is unique enough to search on.
Note the rarity code beside it
This is what separates the versions of the same card number.
Look for a parallel or alternate marker
Different artwork, foiling or frame on the same number means a different market price entirely.
Check the language
Japanese and English printings of the same number are priced independently.
Search the exact string
Searching the identifier rather than the character name is how you avoid pricing the wrong printing.
Where each of these elements sits on the physical card is covered in how to read a One Piece card.
Frequently asked questions
- What does OP mean on a One Piece card?
- OP marks a main booster set. OP17-001 is card number 001 from the seventeenth main booster. Other prefixes are ST for starter decks, EB for extra boosters, PRB for premium boosters and P for promos.
- Do alternate arts have different card numbers?
- No. An alternate art shares the card number of the original printing. The rarity code and the parallel marker are what distinguish the versions, which is why buyers must check more than the number.
- What does SEC mean in One Piece TCG?
- SEC is Secret Rare, the highest standard rarity tier in a set and the usual home of the chase cards. It appears far less frequently than Super Rare.
- Are Japanese and English cards with the same number identical?
- They are the same card in game terms, but they are separate market items with separate prices, separate print runs and potentially different tournament legality depending on the region.
- How do I know which block a card belongs to?
- Cards carry a block marker in addition to the set code. That marker, not the OP number, determines format legality when rotation applies.
Sources
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