How to build a One Piece TCG deck: deckbuilding guide

Copying a winning decklist works, but if you really want to improve you need to understand why that list runs what it runs. In this guide we explain how to build a One Piece Card Game deck step by step: the rules for a legal deck, how to choose a Leader, which cost curve to use, how many Counters to run and how many copies of each card. The figures come from competitive decklists from October 2026, and at the end there is an example broken down card by card.

The rules for a legal deck

• 1 Leader, which sits separately and does not count towards the deck.
• Exactly 50 cards made up of Characters, Events and Stages. Not 49, not 51.
• 10 DON!! in a separate deck. Some Leaders change this rule: Enel OP15-058, for example, plays with 6.
• A maximum of 4 copies per card number. It is the number that counts, not the name: an alternate art shares the limit with the regular version, and two Luffys with different numbers are different cards.
• Everything in your Leader's colour. With a two-colour Leader you can use cards of either colour.
• No side deck at official tournaments.

On top of that, at a tournament every card has to be legal in the format. The current Standard format allows blocks 2 to 5 (OP-05 onwards, with exceptions) until 31 March 2027, and there are banned cards, such as the OP14-020 Dracule Mihawk Leader since 12 October 2026. Before you buy anything, go over the Standard format and the banlist.

Choose your Leader

The Leader decides everything else: your colours, your Life and, above all, what the other 50 cards have to do. Before you look at any other card, read its ability and ask yourself three things:

1. What does it want? Many Leaders only work with a specific type (Straw Hat Crew, Rocks Pirates, Big Mom Pirates…) or with a condition, such as having a cost 8 or higher Character. That type or condition is the filter for your deck.
2. How much Life does it have? In sets OP-14 to OP-17, single-colour Leaders have 5 Life and two-colour Leaders have 4. A 4-Life Leader can take less damage, so its deck has to make up for it.
3. Does it attack or defend? Some Leaders help you defend on your opponent's turn and others give you an edge when attacking. That changes how many Counters you need.

If you do not know where to start, look at which Leaders are performing in the best meta decks.

The cost curve

Remember how your DON!! grow: the player going first has 1 on their first turn and then adds 2 each turn (3, 5, 7, 9 and 10). The player going second has 2, 4, 6, 8 and 10. In other words, a cost 10 card will not land until your fifth or sixth turn, and if your hand is full of expensive cards, your early turns go by with nothing to do.

This is what competitive decklists run, according to an analysis of 149 decklists from online tournaments in October 2026:

The idea is clear: lots of cheap cards so you have something to do every turn and can dig for your pieces, and only three or four expensive finishers. The median list runs 42 Characters, 8 Events and no Stages: fewer than half of the lists used any.

How many Counters to run

Counters are what keep you alive. Current competitive decklists run far more of them than was recommended a while ago. Across 138 decklists from October 2026 with complete data, the median looked like this:

In other words, roughly two thirds of the deck can be used to defend. If your first draft has fewer than 25 cards with a Counter, you are most likely short.

Why +2000s matter so much: ties go to the attacker. If your Leader has 5000 and your opponent attacks with 6000, a +1000 Counter takes you to 6000 and you still lose; you need +2000 or two +1000 cards. That is why good players attack with just enough power to make you spend two cards, and why a solid base of +2000s saves you cards in hand.

There are exceptions. The Rocks.D.Xebec OP17-039 decklist recommended by Bandai runs not a single Counter: its Leader draws lots of cards and defends with effects paid for by trashing cards. If your Leader does not do something similar, do not copy it.

Blockers, Events and Triggers

• Blockers. There is no number that works for every deck. Some guides recommend between 4 and 8, but it depends on the Leader: Monkey.D.Luffy OP17-079, for example, gives Blocker to all your cost 12 or higher Characters, so it does not need printed Blockers.
• Events. The median is 8, with lists running between 4 and 14. Counter Events cost DON!!, so count them separately from Character Counters: on your opponent's turn you might not have spare DON!! to pay for them.
• Triggers. A card with Trigger gives you a free effect if it comes out of your Life. It is a bonus, not a reason to run a card. If you are torn between two similar cards, take the one with a useful Trigger, but do not fill your deck with weak Triggers.

4 copies or 2–3 copies

Competitive decklists are very streamlined: they use around 15 different card numbers and the median has 36 of its 50 cards as playsets of 4. The reason is probability. These numbers (not counting the mulligan) show what each copy changes:

• 4 copies for the cards your Leader needs every game: the engine, the searchers and the core Counters. Start with the dozen cards the deck cannot function without.
• 2 or 3 copies for expensive finishers, because you do not want two in your opening hand, and for answers to specific matchups.
• 1 copy, almost never. The "just in case" card will only show up in one hand in ten.

Example: a deck broken down

Let us see how all of this fits into a real decklist: the Monkey.D.Luffy OP17-079 (black) list that Bandai published as a recommended deck on 28 August 2026. The deck's plan is to play giants that raise their cost to 12 or more on the board, so the Leader gives them Blocker, and to use them to make the cheap Straw Hats hit harder.

Notice three things. There are only 15 card numbers: 10 at four copies and 5 at two. Every card has a clear role within the Leader's plan. And Dorry and Brogy are both at four copies because they find each other: together they are worth more than apart.

Tournament players then adapt this base to their local meta. A list that won a tournament on 12 September 2026 cut Dorry and Brogy and added, among others, 4 Ground Death OP14-096, an Event that gives +4000 for 1 DON!! if you have 10 or more cards in your trash, and 2 Tempest Kick OP07-096. In other words: more cheap defence. That is how you go from a base list to a competitive one.

Test your deck in ARENA

A deck on paper tells you nothing until you play it. Before you buy the cards you are missing, build your list in our ARENA One Piece TCG simulator: you can build with any Leader, or load a meta decklist in one tap and tweak it. It is free, works on mobile and desktop, and you sign in with your email and a one-time code, no password needed.

1. Start against the AI. It has four difficulty levels. Play around ten games and note down the turns where you had nothing to do, the cards you never wanted to play and the games you lost by one attack.
2. Change one thing at a time. If you swap five cards at once, you will not know which one improved the deck.
3. Test the matchups that matter to you. Create a private 1v1 room, send the code to a friend and get them to play the decks you see most at your local store.
4. Compete. Once the deck works, climb ranked with it (8 ranks, from Stowaway to Pirate King, with an OP-17 Booster Box as the Season 1 prize) or enter an online Swiss tournament with top cut.

You can play One Piece TCG online for free in ARENA right now, with nothing to download.

Get the cards you are missing

Once your list is final, buy the cards you are missing as singles. It is far cheaper than opening packs hunting for one specific card. If you are starting from scratch, a starter deck is the cheapest base for a new deck; check which Leaders are worth it in the meta tier list. And if the deck is for tournaments, buy it in English: official events in Europe are played with English cards, French cards are also accepted, and Japanese cards are not allowed.

Frequently asked questions

How many cards are in a One Piece TCG deck?

50 cards, plus the Leader and 10 DON!! kept separately. A maximum of 4 copies of each card number, all in your Leader's colour.

Can I mix colours?

Only if your Leader has two colours. In that case you can use cards of either colour. With a single-colour Leader, the whole deck has to be that colour.

How many Counters should a deck run?

In competitive decklists from October 2026, the median was around 33 cards that defend: 19 at +1000, 9 at +2000 and 5 or 6 Counter Events. Some Leaders break the norm, such as Rocks.

Can I play tournaments with Japanese cards?

Not at official tournaments in Europe: they are played with English cards (French is also accepted). At home or with friends, the language does not matter.

Keep reading

• Best One Piece TCG decks: the current meta tier list.
• How to play One Piece Card Game: the rules step by step.
• One Piece TCG banned cards: what you cannot run right now.

One Piece card images: © Eiichiro Oda/Shueisha, Toei Animation. One Piece Card Game is a Bandai product; ONLYCHASES is not affiliated with Bandai.