When Does OP17 Release and Which Card Is Rarest? A Closer Look at One Piece OP 17
Everything known about One Piece OP 17 『世界最強の戦士』 — the release date, the new box price, the four rarities introduced with this set, and the chase cards — plus what the pull rates say about opening boxes versus buying singles.
Every year one One Piece Card Game booster stands clearly apart from the rest: the anniversary set. This year that set is OP17, 『世界最強の戦士』 (The World's Strongest Warriors), released to mark the game's fourth anniversary.
What makes it worth a closer look is not only the theme, which brings the Four Emperors and Elbaf together in a single pack, but the fact that Bandai introduced four new rarities at once — a number never seen in a regular set — and that this is the first set to raise the pack price after holding it steady for years.
This article gathers what can be confirmed from the official Japanese and English sites alongside analysis from several Japanese card media outlets, and states plainly which figures are official and which are still only predictions.
When does OP17 release
| Region | Release date |
|---|---|
| Japan (Japanese) | August 22, 2026 (Sat) |
| English (EN) | August 28, 2026 |
| EN Pre-Release events | August 21, 2026 |
That timing matters more than most people expect: the first three to seven days after release are when stock is still plentiful and prices have not yet been pushed up by social media hype.
Price and box contents
- 240 yen per pack, 6 cards per pack
- 1 box = 24 packs = 5,760 yen
- 131+4 card types in the set, 135 in total
The detail worth reading closely is that OP17 is the first set to raise the pack price from 220 to 240 yen. The impact is not the 20 yen per pack but how it compounds: 480 yen more per box, and 5,760 yen more per carton of 12 boxes.
Someone buying a single box to open may not notice. For a shop, or anyone opening by the carton, that is a cost that goes straight back into the selling price.
One more thing to understand before ordering: 5,760 yen is the official shelf price Japanese retailers set, not what you will see on Mercari or Yahoo Auction. Those are resale markets, so the price depends on the individual seller and on demand at the time, and around release day or whenever stock runs short it usually sits well above the shelf price. If you plan to order through the resale market, budget for that gap from the start.
The theme: Elbaf meets the Four Emperors
OP17 builds on two themes that converge: Elbaf, from the current arc, and the Four Emperors (四皇), both the old line-up and the new one, with Leader cards across all six colors.
- The old Four Emperors: Edward Newgate (Whitebeard), Shanks, Kaido, Charlotte Linlin
- The new Four Emperors: Luffy, Shanks, Buggy, Teach
- The Rocks Pirates, led by Rocks D. Xebec, printed as a card for the first time in the game's history
- The Elbaf side: Loki, Dorry, Brogy, Saul, and the Straw Hats
Bandai choosing the anniversary set to debut Rocks is no accident. It lands exactly as the manga has revealed his role — a formula that has worked every time for a character fans have waited a long time to see printed.
The four new rarities introduced in this set
This is the core of why OP17 is drawing more attention than a regular set.
海賊団スーパーパラレル (Pirate Crew Super Parallel)
The highest rarity in the set, created specifically for the fourth anniversary. Only 2 exist across all 135 card types: Luffy and Rocks D. Xebec.
スーパーリーダーパラレル (Super Leader Parallel)
A new Leader rarity with a single card, Luffy. Its selling point is manga panels worked into the card art.
新四皇SP (New Four Emperors SP)
Luffy, Shanks, Buggy and Teach — 4 cards.
覇王色SP (Conqueror's Haki SP)
Zoro, Oden, Garp, Roger, Yamato and Rayleigh — 6 cards.
On top of these there are コミパラ (Comic Parallel) versions of all four of the old Four Emperors.
And the collector's piece the official channels have promoted hardest: Kaido in a special illustration drawn by Keisuke Itagaki (板垣恵介), creator of Baki — a card whose value sits in the rarity of the artwork more than in any price figure.
OP17 chase cards and the one likely to be rarest
Across analysis from four Japanese card media outlets, every one of them ranks the same card first, without exception.
| Rank | Card | Rarity | Predicted price |
|---|---|---|---|
| 1 | Monkey D. Luffy | 海賊団スーパーパラレル | 700,000 - 2,400,000 yen |
| 2 | Rocks D. Xebec | 海賊団スーパーパラレル | 500,000 - 950,000 yen |
| 3 | Luffy | Super Leader Parallel | 200,000 - 300,000 yen |
| 4 | Shanks | Comic Parallel (SR-SP) | 250,000 - 300,000 yen |
| 5 | Edward Newgate | Comic Parallel (SR-SP) | 200,000 - 300,000 yen |
| 6 | Charlotte Linlin | Comic Parallel | around 150,000 yen |
| 7 | Kaido | Comic Parallel | around 100,000 yen |
| 8 | Luffy | 新四皇SP | 80,000 - 510,000 yen |
| 9-10 | Zoro / Yamato / Roger | 覇王色SP | around 100,000 yen |
All prices are pre-release predictions, not actual market prices. Compiled from four Japanese card media outlets.
Why Luffy 海賊団スーパーパラレル is likely the rarest
The reason is not that it is Luffy — it is how the set is built. The rarity is brand new, only 2 cards carry it in the entire set, and it has the lowest pull rate of any card. All three conditions land at once, which is exactly what pushed the special parallel from the third-anniversary pack past the million-yen mark.
The dark horse to watch: Rocks D. Xebec
On the numbers Rocks sits second, but in the market he carries a variable Luffy does not: this is his first card in the game, arriving just as the manga is dealing with him directly. A first card for a character fans have waited on tends to have a ceiling that is much harder to predict than a main character who already has several collectible versions in print.
If the manga's momentum lines up with the release window, Rocks could move harder than any of the outlets have predicted.
Estimated pull rates
| Rarity | Types | Estimated rate |
|---|---|---|
| 海賊団スーパーパラレル | 2 | about 1 per 180 boxes |
| Super Leader Parallel | 1 | about 1 per 96 boxes |
| Treasure Rare | 1 | about 1 per 72 boxes |
| 新四皇SP + 覇王色SP | 10 | about 1 per 12 boxes |
| Gold DON!! | 4 | about 1 per 12 boxes |
| Leader Parallel | 6 | about 1 per 6 boxes |
| SEC | 2 | about 1 per 3 boxes |
| SR | 10 | about 3-4 per box |
Bandai has never published official pull rates. Every figure here is estimated from the statistics of previous sets.
What to weigh before deciding
1. If you want one specific card, buying the single usually beats opening boxes
Run the numbers against the pull rate. If Luffy 海賊団スーパーパラレル appears roughly once every 180 boxes:
The expected cost of opening for it is higher than the value of the card you would get.
That conclusion holds even using the most optimistic predicted figures. Open boxes because opening is fun and you want playable cards — not because you are chasing the top card.
2. A price range that varies by more than 3x is a warning sign
Note that the predictions for the top card run from 700,000 to 2,400,000 yen — a spread of more than 3x. That means nobody actually knows yet, because the set has not been released. The highest figures in the market usually come from sites estimating on hype rather than data.
The prices worth referencing are the ones from at least one to two weeks after release, once stock is circulating on the secondary market and volume has settled.
3. The card list is not complete yet
As of early August, roughly 108 of the 135 card types have been revealed, leaving about 27 still unannounced. Bandai's habit is to reveal them gradually up to release day, and the cards held back to the end are usually the ones meant to sell the set.
In summary
OP17 『世界最強の戦士』 is one of the most stacked sets of the year: four new rarities, the first ever Rocks card, and a special illustration from Itagaki.
On the buying decision, though, the available information all points the same way. If you want one specific card, ordering the single from the Japanese market beats opening boxes to find it. And if you want a box to open yourself, the window before prices get pushed up is the first week after release.
Frequently asked questions
The Japanese version releases on August 22, 2026. The English version is listed for August 28, 2026, with Pre-Release events on August 21.
The official price is 5,760 yen per box — 24 packs at 240 yen each, 6 cards per pack. That is up from 5,280 yen for the previous set.
Monkey D. Luffy at 海賊団スーパーパラレル, a new rarity carried by only 2 cards in the whole set and with the lowest pull rate.
131+4 types, 135 in total, with Leader cards across all six colors.
If you want one specific card, buying the single is better value, because the expected cost of opening for it exceeds the value of the card. If you want playable cards or simply enjoy opening packs, a box still makes sense.
You can arrange an order now, and real stock becomes available in the Japanese market from August 22, 2026 onwards.
Read next
- How to Order from Mercari: Search, Haggle, Pay and TrackOrder from Mercari Japan yourself on Tama-Chan. No Japanese account needed: just follow the screenshots step by step.
- Real or Fake Japanese Cards: How to Tell, and Who ChecksListing photos only take you so far. The rest is settled by an inspection in Japan before the card leaves the country: 1-3 business days, and if it fails, the order is cancelled and fully refunded.
- Open the Mercari Japan shopSearch Mercari with baht prices and Thai descriptions beside the original listing
- Service fee and shipping rate tablesCheck the per-item service fee and the sea and air freight rates before you commit
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