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

Enter the legendary land of Elbaf with the One Piece Card Game – OP-17: The World's Strongest Warriors Booster Box [Japanese], the 17th main booster expansion for the One Piece Card Game.

The World's Strongest Warriors [OP-17] brings the story of One Piece into the Elbaf Arc, introducing powerful new Leaders, characters from the Kingdom of Giants, fresh strategies, and premium collectible cards featuring some of the strongest warriors in the One Piece universe.

Headlined by characters including Monkey D. Luffy and Loki, OP-17 brings the Straw Hat Crew to Elbaf while introducing new cards designed to strengthen a wide variety of existing decks.

Each Japanese booster box contains 24 booster packs with 6 cards per pack, giving collectors and players 144 cards across a complete sealed booster box.

Whether you're chasing Secret Rares and alternate artwork, building a new OP-17 deck, collecting Japanese One Piece cards, or adding the latest main-series booster box to your sealed collection, OP-17: The World's Strongest Warriors is a major One Piece Card Game release for 2026.

Also Known As

Collectors and players may also know this set as:

• OP-17
• OP17
• The World's Strongest Warriors
• World's Strongest Warriors
• One Piece OP-17 Japanese
• OP-17 Japanese Booster Box
• One Piece Elbaf Set
• Elbaf Booster Box

All refer to the Japanese-language release 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: Booster Box
• Condition: Factory Sealed
• Manufacturer: Bandai

📅 Release Date

22 August 2026

OP-17 marks the beginning of a much closer global release schedule for the One Piece Card Game, with the Japanese edition launching on 22 August 2026 and the English edition following shortly afterwards.

Box Configuration

Each One Piece Card Game OP-17 Japanese Booster Box contains:

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

Cards are randomly inserted. A booster box does not guarantee any specific card, rarity, alternate artwork, parallel card, or complete set.

Please Note: This listing is for the Japanese-language edition. The English OP-17 release uses a different booster pack configuration.

Welcome to Elbaf

The World's Strongest Warriors [OP-17] takes the One Piece Card Game into Elbaf, the legendary 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 some of the most powerful pirates and warriors from throughout the series.

The Straw Hat Crew also appears in their Elbaf attire, giving collectors new versions of characters including:

• Monkey D. Luffy
• Roronoa Zoro
• Nami
• And other members of the Straw Hat Crew

At the centre of the expansion is Loki, the former prince of Elbaf, alongside Luffy and other powerful characters connected to the land of the Giants.

New Leaders & Strategies

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

The Leader lineup includes major characters from across the One Piece universe, bringing together legendary pirates and characters connected to the latest storyline.

One of the headline cards is Monkey D. Luffy [OP17-079], who also receives a premium Super Leader Alternate Art version.

These new Leaders give players additional ways to build decks around OP-17 while providing collectors with premium alternate-art cards to chase.

OP-17 Set Highlights

The World's Strongest Warriors features:

• 131+4 card types
• New Leader Cards
• Secret Rare cards
• Super Rare cards
• Special Cards
• Treasure Rare
• Alternate Art cards
• Parallel designs
• DON!! Cards
• Characters from the Elbaf Arc
• Straw Hat Crew in Elbaf attire
• New cards designed to support existing strategies
• Powerful new cards capable of forming entirely new decks

Card Rarities

Cards throughout OP-17 can be found across rarity categories including:

• Leader Cards
• Secret Rare
• Super Rare
• Rare
• Uncommon
• Common
• Special Cards
• Treasure Rare
• DON!! Cards

Selected cards are also available with premium alternate artwork and parallel designs, providing additional chase cards for One Piece collectors.

Japanese vs English OP-17

The Japanese and English editions of The World's Strongest Warriors [OP-17] share the same core expansion but use different booster configurations.

Japanese OP-17

• 24 Booster Packs per Box
• 6 Cards per Booster Pack
• Japanese card text
• Japan Release: 22 August 2026

English OP-17

• 24 Booster Packs per Box
• 12 Cards per Booster Pack
• English card text
• Global Release: 28 August 2026

This product listing is specifically for the Japanese OP-17 Booster Box.

Highlights

• Official One Piece Card Game Japanese release
• OP-17: The World's Strongest Warriors
• Features the Elbaf Arc
• 24 booster packs per box
• 6 cards per booster pack
• 144 cards across the box
• 131+4 card types
• Features Monkey D. Luffy and Loki
• Straw Hat Crew appears in Elbaf attire
• New Leader Cards
• Secret Rare and Super Rare cards
• Treasure Rare
• Special Cards
• Alternate Art and Parallel cards
• Japanese-language cards
• Factory sealed Bandai booster box
• Released 22 August 2026

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

OP-17: The World's Strongest Warriors represents an important new chapter for both the One Piece story and the One Piece Card Game.

The expansion's focus on Elbaf brings one of the manga and anime's most anticipated locations into the TCG, introducing characters from the Kingdom of Giants alongside new versions of the Straw Hat Crew.

For players, OP-17 introduces new Leaders and cards designed to strengthen existing strategies while also providing the foundation for completely new decks.

For collectors, the combination of Secret Rares, Special Cards, Treasure Rare, alternate artwork, parallel cards, and premium Leader designs provides plenty of high-end cards to chase.

The Japanese edition also offers the distinctive 6-card booster format, with 24 packs contained in every sealed booster box.

Whether you're chasing premium alternate artwork, building an Elbaf-themed deck, collecting Japanese One Piece cards, or keeping the booster box factory sealed, the One Piece Card Game OP-17: The World's Strongest Warriors Booster Box [Japanese] is an exciting addition to any One Piece collection.

Perfect For

• One Piece Card Game collectors
• Japanese One Piece TCG collectors
• OP-17 collectors
• Elbaf Arc fans
• Monkey D. Luffy collectors
• Loki collectors
• Straw Hat Crew collectors
• Alternate Art collectors
• Treasure Rare collectors
• Japanese TCG collectors
• Booster box collectors
• Sealed One Piece collectors