OP-17 World's Strongest Warriors Set Guide for 2026

This OP-17 World's Strongest Warriors set guide covers the 4th Anniversary Booster Pack now that the English release is available: confirmed card counts, the Treasure Rare rarity, the six leaders, product details, current price snapshots, and what the post-launch format looks like.

TL;DR: OP-17 "The World's Strongest Warriors" had its US pre-release on August 21, 2026, and English release on August 28. Bandai lists 131+4 types, 6 leaders, and 1 Treasure Rare type. The 4th Anniversary set centers on Elbaph, the Straw Hat Crew, the Rocks Pirates, and the Four Emperors. Post-launch tracking currently places Green Mihawk at the top, while Purple Enel sits in the A tier, so use live results rather than the old OP-16 projection.

OP-17 World's Strongest Warriors set guide: what you need to know

The short version: OP-17 is the 4th Anniversary set built around Elbaph, the Four Emperors, the Straw Hat Crew, and the Rocks Pirates. It has 131+4 card types, six leaders, and one Treasure Rare type. The US pre-release was August 21, 2026, and the English release was August 28, 2026.

For the format, OP-17 is already live. A current post-launch tracker puts Green Dracule Mihawk in S tier at a 65.0% win rate, while Purple Enel is A tier at 50.1% across 49 tracked decklists. Those are a live snapshot from a fan-run database, so use the linked tournament data rather than treating any ranking as permanent.

What the OP-17 World's Strongest Warriors set guide confirms

• English release: August 28, 2026, after the August 21 US pre-release
• Set size: 131+4 card types, or 135 types in total, per Bandai's product page
• The English Treasure Rare is the OP17-040 parallel of Edward Newgate OP17-040OP17-040Shop on TCGplayer, a Blue 6-cost, 8000-power Character; the base card is also listed as Rare
• Six leaders on an Elbaph and Four Emperors anniversary theme: Edward Newgate/Whitebeard (Red), Monkey D. Luffy (Black), Shanks (Green), Kaido (Purple), Charlotte Linlin/Big Mom (Yellow), and Rocks D. Xebec (Blue)
• Current post-launch tracking puts Green Mihawk in S tier and Purple Enel in A tier; rankings will move as more events are recorded
• Bandai's product page does not announce a rotation, so verify tournament legality in the current rules and event notices

What Is OP-17 World's Strongest Warriors?

OP-17 is the 17th main booster set in the One Piece Card Game and the 4th Anniversary Booster Pack. The full title is "The World's Strongest Warriors," and the official product page frames the set around Elbaph, the Straw Hat Crew, the Rocks Pirates, and the Four Emperors. If you're new to the game overall, rules, colors, deck building, the One Piece TCG complete guide covers the fundamentals this set-specific guide assumes you already know.

Bandai announced the set during the Championship 25-26 season, with leader reveals rolling out through official card-reveal videos. The thematic focus is Elbaph and the Four Emperors: the official product page features Luffy, Nami, and Loki, tying the anniversary set to the giants' homeland and the franchise's top-tier powers. That's a fitting 4th Anniversary approach, and it means the featured cards skew toward the biggest names in the current story.

Six leaders are in the set, and all are now confirmed by Bandai's official card list: Edward Newgate/Whitebeard (Red), Monkey D. Luffy (Black), Shanks OP17-020OP17-020Shop on TCGplayer (Green), Kaido (Purple), Charlotte Linlin/Big Mom (Yellow), and Rocks D. Xebec (Blue). The OP-17 leaders deck potential preview is an archived reveal-season analysis, while the official card list is the authority for the locked roster.

The set is confirmed at 131+4 card types, 135 unique cards total, updated from an earlier 126+1 estimate as more of the set sheet has been revealed:

The card count is meaningfully larger than OP-16, which ran 126+1. The Treasure Rare slot is confirmed as part of OP-17's rarity structure; Bandai's product page lists the rarity categories but does not publish a pull-rate table.

Product Lineup and Pricing

OP-17 shipped in the same format as recent OPTCG sets: 12-card booster packs sold in displays of 24, with 12 displays in a case. Bandai's official MSRP is $4.99 per pack, putting a 24-pack display at roughly $119.76 before retailer adjustments.

The English release landed August 28, 2026, so this is no longer a pre-order forecast. A live tracker refreshed September 16 lists the English booster box at a 7-day average of $331 and a TCGplayer market price of $339. Those are market snapshots, not fixed prices, and supply or tournament results can move them quickly.

The bigger structural change from past sets is the shrunk JP-to-EN gap. Japanese product released August 22, 2026, the US held a pre-release on August 21, and the English release followed on August 28, about a week behind Japan rather than months. That is a shorter gap than earlier main sets, although it does not guarantee stable prices or equal availability in every region.

If you want a specific card, singles are easier to budget than opening sealed product. Bandai lists one English Treasure Rare type, but the set also has several premium parallel treatments, so a sealed opening is better treated as entertainment than as a guaranteed route to a particular card. For box-vs-case quantity math now that the set is out, see our OP-17 box opening strategy guide.

GODEEPER: Full release-day breakdown: availability, pricing, and what changed today. OP-17 EN Wide Release Day: What to Know Now →

• OP-17 Box Price Reality Check: What Boxes Sell For: Live secondary-market box tracking, including how far current listings have moved past MSRP.
• One Piece TCG Global Launch: What EN Players Gain in 2026: A closer look at the shrunk JP-to-EN gap and what a one-week window actually changes for EN buyers and importers.
• OP-17 Pre-Release Sparks Price-Gouging Backlash This Weekend: What players reported about pre-release entry pricing at LGS nationwide during the August 21 pre-release weekend.
• OP-17 Distribution Backlash: Streamer Nets 16 Full Cases: A screenshot showing one reseller with 16 cases reignited complaints about who actually gets OP-17 stock at launch.
• OP-17 JP vs EN Price Gap: Is Importing Worth It Now?: Real Aug 24 Japanese secondary-market prices, checked against the EN secondary market, with the actual import math.

SHOP: Building for the World's Strongest Warriors set? Compare current OP-17 listings for the leaders and chase cards in this guide. Shop TCGplayer →

The Treasure Rare Rarity Explained

Treasure Rare is a top rarity tier in One Piece TCG, sitting above Secret Rare. OP-16 handled the top rarity question through Manga Rares, while OP-17 uses a single English Treasure Rare type under the Treasure Rare label. Bandai's product page lists that type alongside the set's Secret Rares and other premium treatments.

For the English release, the Treasure Rare is the parallel printing of Edward Newgate (Whitebeard), card OP17-040. The base card is a Blue 6-cost Character with 8000 power, an On Play draw-1 effect, and a once-per-turn effect that lets you trash 1 card from hand to give a Rocks Pirates Leader +3000 power during the battle. The official card list shows the same number in both Rare and Treasure Rare printings.

Bandai's product page lists the rarity types but does not publish pull rates. A tracker refreshed September 16 puts the OP17-079 Super Leader Parallel at a 7-day average of $1,637 and a TCGplayer market price of $1,788. The English OP17-040 Treasure Rare was listed at a 7-day average of $46.55 and a TCGplayer market price of $45.33 on the same tracker, so the Super Leader Parallel is currently the larger English chase by that measure. Japanese product coverage identifies Lucky.Roux OP17-033OP17-033Shop on TCGplayer as the Japanese Treasure Rare parallel, while the English card list identifies OP17-040 as the English one.

For a full history of how rarity tiers have worked across OPTCG sets, the OP-17 Treasure Rare deep dive (linked under Related Reading below) covers the mechanics and historical context.

• OP-17 Treasure Rare Revealed: Edward Newgate Is the Card: The official reveal post confirming card stats, ability, and how the print compares to OP-16's three-way Admiral Manga Rare split.
• OP-17 Super Parallel Cards: New Manga Rare Tier Explained: Treasure Rare isn't the only premium treatment in this set. Super Leader Parallel, Super Parallel, Manga, and Conqueror's Haki Special cards add other chase paths.
• OP-17 Best Cards to Pull: Two Different Treasure Rares: The full chase-card ranking with real August 24 Japanese secondary market prices, including why the base Secret Rares are trading near bulk.
• OP-17 Complete Card List: All 135 Cards + Values (2026): Every leader, rarity tier, and confirmed card ID organized in one reference, with real August 24 pricing for each premium tier.

New Leaders and Key Cards

Six leaders are in OP-17, built around the Elbaph and Four Emperors anniversary theme, and all six are confirmed in Bandai's current card list: Edward Newgate/Whitebeard (Red), Monkey D. Luffy (Black), Shanks (Green, OP17-020), Kaido (Purple), Charlotte Linlin/Big Mom (Yellow), and Rocks D. Xebec (Blue).

What Bandai has confirmed: the leaders are recognizable, top-power characters with updated mechanics built for the OP-17 format context. The "World's Strongest Warriors" title and the Elbaph and Four Emperors theme match the reveal pattern, six of the series' biggest names locked in as leaders, with raw power and iconic status the clear throughline.

All six leader slots are now filled and their colors confirmed, so the full roster is locked in and safe to plan around.

The OP-17 leaders preview from earlier in July is useful reveal-season background, but the official card list is the current source for confirmed characters and card text.

Beyond leaders, the cards to track are Super Rares and Secret Rares. Both of OP-17's SEC cards are confirmed in the official card list: Loki OP17-119OP17-119Shop on TCGplayer (OP17-119) and Rocks D. Xebec OP17-118OP17-118Shop on TCGplayer (OP17-118). Values are version-dependent and move quickly. A tracker refreshed September 16 lists 7-day averages of $31.55 for base Loki, $65.56 for Loki's alternate art, $18.20 for base Rocks, and $40.70 for Rocks's alternate art.

• OP-17 Blue Leader Revealed: Rocks D. Xebec Confirmed: The reveal that closed out the six-leader lineup, including card numbers and the Rocks Pirates tribal ability behind it.
• OP-17 Newgate Deck Guide: Trash-for-Power Red Leader: How Edward Newgate's reactive, trash-a-card-for-power leader ability actually plays out in a mono-Red build.
• OP-17 Shanks Deck Guide: Green Tempo-Lock Leader Build: How Shanks's Refresh Phase lock ability scales Green's existing rest-based toolkit to leader strength.
• OP-17 Luffy Deck Guide: Black's New Cost-12 Blocker Plan: How Luffy's Blocker-for-cost-12 ability forces a genuinely different, top-heavy Black build.
• OP17 Red/Black Sabo Deck Guide: Elbaph Build Plan 2026: OP13-004 threshold, current list evidence, mulligan priorities, and Red/Black pressure lines.
• OP-17 Big Mom Deck Guide: Yellow's Hand Disruption Plan: How her opponent's-choice hand-disruption ability always extracts value on every attack.
• OP-17 Xebec Deck Guide: Blue Rocks Pirates Build 2026: How the trash-and-reveal leader ability actually pays off, and the two confirmed Rocks Pirates support cards behind it.
• OP-17 Kaido Deck Guide: Purple Removal, Not Ramp 2026: Why Kaido's cheap, either-attack power-reduction ability breaks from Purple's usual DON!! ramp identity.
• OP-17 Enel Tech Cards: 3 Verified Picks by Color (2026): Why standard K.O. and bounce removal fails against the format's most-played leader, and the specific cards that get through anyway.
• OP-17 Mihawk Matchup Guide: All 6 Leaders Explained: How the format's second-place leader (an OP-14 print, not an OP-17 native) actually plays, and how each of OP-17's six new leaders fares against him.
• OP-17 Mihawk Deck Guide: Green Dracule Mihawk 2026: A current 50-card shell, verified ramp math, and the OP-17 Yasopp OP17-031OP17-031Shop on TCGplayer and Shanks package behind the deck's new pressure.

Format Impact: What OP-17 Means for Standard

OP-17 is already live in English, so the pre-launch OP-16 projection is no longer the right baseline. A current post-launch tracker lists 114 OP-17 decks across 56 leaders and puts Green Mihawk first by meta share at 23.49%. Its tier page reports Green Mihawk at a 65.0% win rate and places Purple Enel in A tier at 50.1% across 49 tracked decklists. The same tracker places Blue Rocks, Sabo, Nico Robin, Luffy, Red Luffy, and Yellow Charlotte Linlin in S tier. These are live snapshots from a fan-run database with different sample sizes, so check the linked data before making a tournament call. The site's detailed post-launch breakdown is linked below.

Six new leaders arriving with OP-17 changed the competitive field, but the official product page does not announce a rotation. Confirmed legality depends on Bandai's current rules and event notices, not on an assumption that a set range will remain fixed. OP-18 is being listed for November 2026 by retailers, but its exact date and future format implications should be checked against Bandai's announcements.

The measured change is visible in the current tracker: Green Mihawk leads the post-launch field, while Purple Enel remains competitive in A tier and Purple Kaido also appears in A tier. That replaces the old pre-launch language about what the new leaders might do. The sample is still moving as more events are recorded, so use the tier pages and tournament results for an up-to-date view.

Black Yamato is no longer a safe pre-launch assumption: the current tracker places it in B tier at 46.5% across 14 decklists. That does not make the deck unplayable, but it does mean the old advice to wait behind a set-agnostic Yamato shell should be treated as historical context rather than a current tier call.

For the full breakdown of what to hold, what to sell, and what preview signals to track, the OP-17 OP-16 format analysis (linked under Related Reading below) covers format positioning in depth.

GODEEPER: The current OP-17 S-tier leaders and how the new field is ranked. OP-17 Meta Tier List →

Should You Buy OP-17? Collector vs. competitive

These are two different questions with different answers.

Collectors have a clear choice between opening sealed product and buying a specific parallel. The English product page confirms one Treasure Rare type, but current tracking shows that the OP17-079 Super Leader Parallel is a much larger English chase than the OP17-040 Treasure Rare. The English box market was around $331 for a 7-day average on September 16, while the same tracker put the Treasure Rare around $46.55 and the Super Leader Parallel around $1,637. Those values are snapshots, not guarantees, so buy sealed only if you want the opening experience or sealed product itself.

Sealed boxes are still a poor way to acquire any specific rare card. One English Treasure Rare type means the odds of finding that exact parallel are not a substitute for buying the single. Opening a box for the experience can make sense; opening cases to chase one card is a much less controlled purchase.

For competitive players, the set is already fully released, so use current decklists and tournament results instead of reveal-season predictions. The OP-17 spoilers tracker (linked under Related Reading below) is now a card reference, not a countdown page. Prices often move during the first weeks after release, but the current market is already post-launch and should be checked again before buying.

If you're already running Yamato or Blackbeard, compare the current results before assuming those older shells remain the best use of your budget. If you want to pick up an OP-17 leader, prioritize a current decklist and recent event evidence over a pre-release prediction.

The OP-17 preparation guide remains useful as an archived pre-launch checklist for collectors and competitive players. For the shorter launch checklist, see OP-17 launch checklist: 6 things to do before Aug 28, which is also historical now that the set is available.

Frequently Asked Questions

When does OP-17 release in English? The English release of OP-17 The World's Strongest Warriors was August 28, 2026, after a US pre-release on August 21. Japanese product released on August 22. The official product page lists the English release date and USD $4.99 MSRP; pre-order availability is no longer relevant.

How many cards are in OP-17? Bandai's official product page lists 131+4 types in total, or 135 card types, including 6 Leaders, 2 Secret Rares, 1 Treasure Rare type, and 1 DON!! card type.

What is the Treasure Rare in OP-17? For the English release, OP17-040 is listed by Bandai as both a base Rare and a Treasure Rare parallel. It is a Blue 6-cost, 8000-power Character with an On Play draw-1 effect and a once-per-turn effect that gives a Rocks Pirates Leader +3000 power during the battle. The Treasure Rare is a premium printing, not a separate card number.

How many leaders are in OP-17? Six leaders are in OP-17, the 4th Anniversary set with an Elbaph and Four Emperors theme. Bandai's current card list confirms Edward Newgate/Whitebeard (Red), Monkey D. Luffy (Black), Shanks (Green), Kaido (Purple), Charlotte Linlin/Big Mom (Yellow), and Rocks D. Xebec (Blue).

Will OP-17 rotate any sets out of Standard? Bandai's OP-17 product page does not announce a rotation. Check the current rules and event notices for the legality of OP-16 and earlier cards, because future rotation policy is not established by this product page.

Should collectors buy OP-17 at launch or wait? The English set is already available. If you want the Treasure Rare, compare its current single price with a sealed box before buying. If you need specific competitive cards, current post-launch listings and tournament results are more useful than a launch-week buying rule.

What theme does OP-17 follow? OP-17 is the 4th Anniversary Booster Pack for the One Piece Card Game. The official product page centers the set on Elbaph, the Straw Hat Crew, the Rocks Pirates, and the Four Emperors, with Luffy, Nami, and Loki featured in the product presentation.

Related Reading

• OP-17 Spoilers: All Confirmed Cards and Leaders 2026: Card reference covering the confirmed OP-17 leaders, Loki SEC, and Treasure Rare status.
• OP-17 Release Date Confirmed: The original announcement article covering the Japan, US pre-release, and EN wide release dates, and what the shrunk JP-to-EN gap means.
• OP-17 Loki: Elbaph Prince Black SEC Stats and Collector Value: Full breakdown of Loki, one of OP-17's two confirmed Secret Rare cards.
• One Piece TCG OP-16 Complete Guide: Full hub for the previous set, useful for understanding what OP-17 is following and how the two sets will interact in the combined format.
• OP-17 Spoilers Recap: Everything Confirmed, 3 Days Out: A consolidated recap of every confirmed leader, chase card, and rarity tier for readers who haven't tracked the reveal season day by day.
• OP-17 Final Predictions: Meta Impact and Price Ceiling: Archived pre-launch predictions about which leaders might pressure the OP-16 meta and where premium prices could land.
• OP-17 One-Month Meta Report: Leaders After Release: The dated post-release snapshot comparing current tiers, early Flagship results, and the launch predictions.
• BCG Fest Dallas: Season 1 Finals Preview: The Championship 26-27 Season 1 Finals hit Dallas September 18-20, the biggest live event on the OP-17 calendar right now.

References

• Bandai official OP-17 product page: release date, MSRP, card-type count, and listed rarity categories
• Bandai official OP-17 card list: current card names, card text, leader colors, and Rare/ Treasure Rare printings
• One Piece TCG Meta OP-17 tier list: current post-launch tiers, win rates, and tracked deck counts
• OP17 Price Tracker: September 16, 2026 sealed and single-card market snapshots
• Japanese OP17-033 Treasure Rare listing: regional product listing identifying Lucky.Roux as the Japanese parallel
• TCGplayer OP-17 booster box: pack, display, and case configuration reference