Quick answer
Set OP-17, The World’s Strongest Warriors, is the game’s four-anniversary set. It released in Japan on 2026-08-22 and in English on 2026-08-28, six days apart — the first time a main set has been released in the two languages that close together rather than weeks apart. Its themes are Elbaph and the Four Emperors, and it introduces a group of finishes that had not appeared before: Treasure Rare, Super Leader Parallel and an anniversary finish. Two details are still disputed, and both are set out below rather than resolved.
Six Leaders, one of them printed for the first time.
This page records what can be checked: the release window, the Leaders, the finishes and the cards our index lists. Where a figure comes from a single retail listing rather than from the publisher, it is marked as such.
When it released, and why the gap is short
| Market | Date | Source |
|---|---|---|
| United States pre-release | 2026-08-21 | Retail listings |
| Japan | 2026-08-22 | Publisher and multiple retailers |
| Japan (alternative figure) | 2026-08-26 | A single source; recorded here rather than adopted |
| English | 2026-08-28 | Publisher |
Historically the Japanese release of a One Piece set has led the English one by several weeks. OP-17 narrowed that to six days, which matters to a reader for one practical reason: the interval in which a card’s artwork and treatment names are known in Japan but not yet in English is much shorter than it used to be, so the window for importing ahead of a local release is narrower than the pattern of earlier sets would suggest.
The six Leaders
OP-17 carries six Leaders, and all six are listed in our index. One of them is the first printed card for its character.
| Card | Leader | Colour | Note |
|---|---|---|---|
| OP17-001 | Edward.Newgate | Red | — |
| OP17-020 | Shanks | Green | — |
| OP17-039 | Rocks.D.Xebec | Blue | First printed card for this character |
| OP17-058 | Kaido | Purple | — |
| OP17-079 | Monkey.D.Luffy | Black | Also carries the set’s Super Leader Parallel finish |
| OP17-099 | Charlotte Linlin | Yellow | — |
Between them the six Leaders span all five colours plus black, which is why the set is described as a Four Emperors set: three of the six are characters who hold that title, and a fourth, Rocks.D.Xebec, is the figure the set’s theme is built around.
What OP-17 introduces
| Finish | What it is |
|---|---|
| Treasure Rare | A new small layer, sitting beside SP and the Comic Parallel as a third treatment tier. Our index lists 12 entries of it across 12 distinct cards. |
| Super Leader Parallel | A gold-on-black finish applied to a Leader — the first finish aimed specifically at Leaders. In OP-17 it is carried by the black Monkey.D.Luffy at OP17-079. |
| Gold Anniversary finish | An anniversary finish applied to selected cards, tying a printing to the set’s anniversary rather than to a rarity. |
| Conqueror’s Haki SP | A named treatment within the SP family, introduced with this set. It is the clearest sign that SP is a family of finishes rather than one finish. |
The set is also the first in which the four Emperors each receive a Comic Parallel, which is the kind of first that matters more to a catalogue than to a rulebook: it does not change how any card plays, but it changes how many entries the set contributes to the treated layer.
The Secret Rare layer
Two cards carry the set’s Secret Rare treatment, and both are recorded in our index with more than one finish.
| Card | Character | Colour | Finishes listed |
|---|---|---|---|
| OP17-118 | Rocks.D.Xebec | Blue | Standard plus two treated printings |
| OP17-119 | Loki | Black | Standard plus one treated printing |
Two treated printings of a single Secret Rare is not unusual in itself, but in OP-17 it is worth noting because the same set is where the treatment vocabulary widened. A reader comparing entries for this set is comparing finishes, not characters.
How many cards it holds
This is the first of the two disputed figures. A retail listing gives the set as 135 types, made up of 131 plus 4. At the time of writing, the publisher had not released a full card list for the set, and a second source states exactly that. Both facts are recorded here. What this page will not do is present the retail figure as a total, because the publisher does not publish card counts for main sets and a listing is not the same kind of source.
What this page will not claim
It will not state a card total as fact, for the reason above. It will not state a pull rate for any finish, because no rate is published. It will not predict how any card will be treated later, since a reprint product can carry the same card number again. And it will not quote a figure for any card, for the reason given at the foot of the page.
Frequently asked questions
When did OP-17 release?
The English release was 2026-08-28, six days after the Japanese release on 2026-08-22, with a United States pre-release on 2026-08-21. One source gives 2026-08-26 for the Japanese date; that figure is recorded on this page rather than adopted.
How many cards are in OP-17?
A retail listing gives 135 types, made up of 131 plus 4. At the time of writing the publisher had not released a full card list for the set, and a second source says so explicitly. This page records both and does not present the retail figure as a total.
Which Leaders are in OP-17?
Six: Edward.Newgate at OP17-001, Shanks at OP17-020, Rocks.D.Xebec at OP17-039, Kaido at OP17-058, Monkey.D.Luffy at OP17-079 and Charlotte Linlin at OP17-099. Rocks.D.Xebec is the first printed card for that character.
What did OP-17 introduce that was new?
Four finishes: Treasure Rare, a new small treatment layer; Super Leader Parallel, the first finish aimed specifically at Leaders; a Gold Anniversary finish; and a named treatment within the SP family. It is also the first set in which the four Emperors each receive a Comic Parallel.
Is OP-17 the four-anniversary set?
Yes. It is presented as the game’s four-anniversary set, and its themes are Elbaph and the Four Emperors. It is also the first main set released in Japanese and English within six days of each other rather than weeks apart.
Sources
Sources and scope
- Bandai, One Piece Card Game official product pages and release announcements for the set and its release dates.
- Our own index of the One Piece Card Game, which lists the Leaders, the Secret Rares and the finishes recorded for this set, with card numbers.
- Retail listings and third-party set coverage, used for the card count and for the alternative Japanese release date, and identified as such where they disagree with the publisher.
- Scope note: this page records what is confirmed and marks what is not. It quotes no price and no pull rate.
Prices quoted are secondary-market observations at the date cited and move quickly; nothing here is a valuation or an investment recommendation.
Related reading
- OP-17 Checklist: The Cards We Track
- OP-16 The Time of Battle: The Set, Explained
- OP-18 The Dominance of God: What Is Confirmed
- Every One Piece Set, in Order
- One Piece Card Set Codes: The Full List
- One Piece Card Block Numbers, Explained
- Treasure Rares in the One Piece Card Game
- The One Piece Card Game Index
Where to go next
- The CardSpicy card index — every card we track, with its PSA 10 population and market history (195 cards).
- The illustrator index — every artist behind those cards, card by card (110 artists).
Leave a Reply