One Piece OP-18 The Dominance of God: the Japanese booster box explained

Releases October 22, 2026

As of: 22 October 2026

The next main set of the One Piece Card Game is almost here. OP-18 The Dominance of God (Japanese title: 神の支配) is released in Japan on Saturday 21 November 2026. It is the second booster of the game's fourth anniversary and brings together the Water Seven arc and the Holy Knights of God. Here is everything that has been officially confirmed about the OP-18 Japanese booster box so far, and what has not been announced yet.

OP-18 at a glance

Name: Booster Pack The Dominance of God [OP-18]
Japanese release: 21 November 2026
Box contents: 24 packs × 6 cards (144 cards per box)
Set size: 127 + 1 card types (official count)
Themes: Water Seven and the Holy Knights of God
English edition: 20 November 2026, according to Bandai's English website

Earlier reports mentioned other dates, such as 22 or 28 November. The date on the official Japanese announcement is 21 November 2026.

Themes and key cards

OP-18 combines two worlds: the Water Seven arc, with Franky and the Straw Hat crew, and the Holy Knights of God, the elite force that serves the Celestial Dragons. According to Bandai, Saint Gunko and Saint Shamrock make their One Piece Card Game debut in this set.

The cards officially revealed so far include:

Franky (OP18-021): a green/purple Leader, shown by Bandai's official channels.
Saint Gunko: gets a special Holy Knights of God Super Parallel, a top rarity made for the fourth anniversary.
Loki and Saint Shamrock: both appear with newly drawn artwork by Final Fantasy illustrator Yoshitaka Amano, one of the most talked-about reveals of the set.
Nico Robin: also among the revealed cards.

The full leader list has not yet been officially announced. Japanese card-list sites report more leaders, but until Bandai publishes the complete card list we only list what has been confirmed.

OP-18 vs OP-17

OP-18 follows OP-17 The World's Strongest Warriors three months later. The box format stays the same; story and set size are different.

	OP-17	OP-18
Name	The World's Strongest Warriors	The Dominance of God
Japanese release	22 August 2026	21 November 2026
Story	Elbaph, the Four Emperors and the Rocks Pirates	Water Seven and the Holy Knights of God
Set size	131 + 4 card types	127 + 1 card types
Box contents	24 packs × 6 cards	24 packs × 6 cards
Leaders	Six, including Shanks, Kaido and Rocks D. Xebec	Not yet fully announced (Franky confirmed)

Want to compare the earlier sets as well? Read our guide Japanese One Piece booster boxes OP-15, OP-16 and OP-17 compared.

When does OP-18 come out in English?

Bandai's English website lists the English edition for 20 November 2026, so this time the English and Japanese versions come out at almost the same moment. They are separate products, with their own packaging and pack format. Exact shop dates in Europe can differ per country and retailer.

Why choose the Japanese box?

The original edition: Japan is where the game started, and many collectors prefer to keep the Japanese version sealed.
Print quality: many collectors value Japanese cards for their finish and print quality.
Compact format: 24 packs of 6 cards each, a format collectors know from every recent Japanese main set.
Playing: Japanese cards are fine for casual play. For official tournaments outside Japan, check which language your event allows.

Buying the Japanese OP-18 box in the EU

M-District specialises in collectibles from Japan and Asia. We ship from Amsterdam with free tracked shipping within the EU, and because your order is shipped from within the EU there are no import duties on delivery. OP-18 is not yet available in our shop. Keep an eye on our release calendar, browse the current boxes in our One Piece Card Game collection, or ask us about OP-18.