One Piece Card Game – OP-17: The World's Strongest Warriors SEALED CASE [Japanese]

Go big on one of the most exciting One Piece Card Game releases of 2026 with the One Piece Card Game – OP-17: The World's Strongest Warriors Sealed Case [Japanese].

Celebrating the 4th Anniversary of the One Piece Card Game, The World's Strongest Warriors [OP-17] brings together legendary pirates, powerful warriors, the Four Emperors, and characters from the highly anticipated Elbaf Arc in a massive Japanese booster release.

A complete factory-sealed Japanese case contains 12 OP-17 Booster Boxes, with 24 booster packs per box and 6 cards per pack. That's a massive 288 booster packs across the sealed case, making it ideal for serious collectors, large-scale openings, breakers, stores, and sealed One Piece Card Game collectors.

Featuring 131 + 4 card types, OP-17 is packed with premium chase cards, alternate artwork, anniversary cards, Secret Rares, Super Rares, Special Cards, Treasure Rare cards, and some of the biggest characters in the One Piece universe.

Whether you're chasing the highest-end cards from OP-17, planning a large opening, or keeping an untouched Japanese case sealed for your collection, The World's Strongest Warriors [OP-17] is a landmark release in the One Piece Card Game.

Also Known As

Collectors and players may also know this product as:

• OP-17 Sealed Case
• OP17 Japanese Case
• OP-17 Japanese Sealed Case
• The World's Strongest Warriors Case
• World's Strongest Warriors Japanese Case
• One Piece OP-17 Carton
• OP-17 Japanese Carton
• One Piece Elbaf Case
• One Piece OP17 12 Box Case

All refer to a factory-sealed Japanese case of One Piece Card Game OP-17: The World's Strongest Warriors.

Product Details

• Game: One Piece Card Game
• Set Name: The World's Strongest Warriors
• Set Code: OP-17
• Language: Japanese
• Region: Japan
• Product Type: Factory-Sealed Booster Case
• Boxes Per Case: 12
• Packs Per Box: 24
• Cards Per Pack: 6
• Condition: Factory Sealed
• Manufacturer: Bandai

📅 Release Date

22 August 2026

OP-17 is the 4th Anniversary booster release for the One Piece Card Game and brings the TCG into the Elbaf era with a huge selection of characters from throughout the One Piece story.

Sealed Case Configuration

Each factory-sealed Japanese OP-17: The World's Strongest Warriors Case contains:

• 12 × OP-17 Japanese Booster Boxes
• 24 × Booster Packs per Box
• 6 × Cards per Booster Pack

Total Case Contents

• 12 Booster Boxes
• 288 Booster Packs
• 1,728 Cards across the Case

The case is supplied factory sealed.

Cards are randomly inserted and specific cards, rarities, parallels or pull rates are not guaranteed.

The 4th Anniversary One Piece Card Game Booster

The World's Strongest Warriors [OP-17] celebrates four years of the One Piece Card Game with one of the most ambitious main booster sets in the game's history.

The expansion brings together characters from multiple eras of the One Piece story, including the current Elbaf storyline, the Straw Hat Pirates, legendary pirates, and some of the strongest characters ever introduced to the series.

OP-17 features 131 + 4 card types, providing players and collectors with a huge range of new cards and premium chase designs.

Welcome to Elbaf

OP-17 brings the One Piece Card Game into the legendary land of Elbaf, the homeland of the Giants and one of the most anticipated locations in the One Piece story.

The expansion features characters connected to the Elbaf storyline alongside the Straw Hat Crew in their Elbaf attire.

Featured characters include:

• Monkey D. Luffy
• Loki
• Roronoa Zoro
• Nami
• Members of the Straw Hat Crew
• Legendary pirates
• The Four Emperors
• Giant warriors of Elbaf
• And many more characters from across One Piece

Premium OP-17 Chase Cards

As a major anniversary release, The World's Strongest Warriors contains an extensive selection of premium collector cards.

Collectors can chase:

• Super Parallel Cards
• Anniversary Parallel Cards
• Super Leader Parallel
• Special Cards
• Leader Parallels
• Treasure Rare
• Secret Rares
• Super Rares
• Premium Alternate Art cards
• Parallel card treatments
• Special DON!! Cards

With numerous premium rarity treatments spread throughout the set, OP-17 provides plenty to chase across a full sealed case opening.

The Four Emperors

OP-17 brings together some of the most legendary pirates in One Piece history, with premium cards celebrating both past and present generations of the Four Emperors.

Characters represented throughout the expansion include legendary names such as:

• Edward Newgate – Whitebeard
• Shanks
• Kaido
• Charlotte Linlin – Big Mom
• Monkey D. Luffy
• And other major pirates from throughout the series

This combination of classic One Piece characters and the latest Elbaf storyline gives OP-17 enormous appeal for both long-time fans and newer One Piece Card Game collectors.

New Leaders & Deck Strategies

OP-17 introduces new Leader cards and support designed to create fresh deck-building possibilities while strengthening existing One Piece Card Game strategies.

The set brings together powerful characters from across different eras of One Piece, giving players new ways to build around favourite characters, crews, and colour combinations.

The combination of competitive cards and premium collector variants makes OP-17 equally appealing for players and collectors.

Why Buy a Sealed OP-17 Case?

A complete Japanese OP-17 Sealed Case is the largest standard factory-sealed configuration available for the set.

Rather than purchasing individual booster boxes, a sealed case provides:

• 12 untouched booster boxes
• 288 total booster packs
• Factory-sealed case packaging
• Ideal format for large-scale openings
• Excellent for breakers and group openings
• Suitable for retailers and tournament communities
• Premium sealed collectible format

For serious One Piece Card Game collectors, an untouched sealed case also provides another way to collect OP-17 beyond individual booster boxes.

Please Note: Bandai does not officially guarantee specific high-rarity cards or case-level pull rates. Purchasing a sealed case should not be interpreted as a guarantee of any particular card.

Japanese OP-17 Case vs Booster Box

Japanese Booster Box

• 1 Booster Box
• 24 Booster Packs
• 6 Cards per Pack
• 144 Cards across the Box

Japanese Sealed Case

• 12 Booster Boxes
• 288 Booster Packs
• 6 Cards per Pack
• 1,728 Cards across the Case
• Factory-sealed outer case

If you're looking for a few packs or a smaller opening, an individual OP-17 Booster Box is the more accessible option.

For large-scale openings or collectors wanting the original sealed carton configuration, the 12-box Japanese case is the premium option.

Highlights

• Official One Piece Card Game Japanese product
• OP-17: The World's Strongest Warriors
• 4th Anniversary booster release
• Factory-sealed Japanese case
• 12 booster boxes per case
• 24 booster packs per box
• 288 booster packs per case
• 6 cards per booster pack
• 1,728 cards across the case
• 131 + 4 card types
• Features the Elbaf Arc
• Features Monkey D. Luffy and Loki
• Features legendary Four Emperors
• Premium anniversary cards
• Super Parallel cards
• Leader Parallel cards
• Treasure Rare
• Secret Rare and Super Rare cards
• Japanese-language release
• Released 22 August 2026

Why Collect OP-17: The World's Strongest Warriors?

The World's Strongest Warriors [OP-17] combines several major milestones for the One Piece Card Game into a single release.

It's a 4th Anniversary expansion, features characters from the highly anticipated Elbaf Arc, and brings together legendary pirates from throughout the history of One Piece.

For collectors, OP-17 offers an extensive selection of premium chase cards, including anniversary designs, parallels, Secret Rares, Special Cards, Treasure Rare cards and other high-end treatments.

For players, new Leaders and support cards create additional deck-building possibilities while strengthening strategies from previous releases.

A factory-sealed Japanese case takes that experience to its largest standard configuration, containing 12 booster boxes and 288 booster packs.

Whether you're planning a huge OP-17 opening, supplying a community of One Piece players, chasing premium cards, or keeping the carton sealed as part of your collection, the One Piece Card Game OP-17: The World's Strongest Warriors Sealed Case [Japanese] is the ultimate way to experience this major anniversary release.

Perfect For

• Serious One Piece Card Game collectors
• Japanese One Piece TCG collectors
• OP-17 collectors
• Elbaf Arc fans
• Luffy collectors
• Four Emperors collectors
• Alternate Art collectors
• Anniversary card collectors
• Large-scale pack openings
• TCG breakers
• Retailers
• Sealed case collectors