MugipocketDeck builder
Build a legal One Piece TCG deck on your phone
Start from a Leader, filter the card pool by colour, cost and role, and let the builder keep the deck legal while you work. When the list is ready, take it straight into the Practice Arena.
In short: Mugipocket has a free One Piece TCG deck builder for iPhone and Android. It checks the 50-card count, the 4-copy limit, colour identity and the current format while you build, saves your lists and lets you test them against an AI opponent. Pro adds unlimited decks and Deck Intelligence with a health score, cost curve and brick risk.
One Piece TCG deck rules at a glance
- 1 Leader card
- Exactly 50 cards in the main deck
- No more than 4 copies of the same card number
- Every card must share a colour with your Leader
- A separate DON!! deck of 10 cards
Leader first
Build around your Leader
Choose a Leader and the builder narrows the pool to cards you can actually play. Filter by colour, cost, type, keyword and role to find the pieces your plan needs.
Legality
Checked while you build
Card count, copy limits, colour identity and the current format are checked as you add cards, so a list that is not legal never reaches your local event by surprise.
- 50 cards and 4 copies per card number
- Colour identity against your Leader
- Current format and rotation
Deck Intelligence
Know how the deck will play
With Mugipocket Pro, Deck Intelligence scores the list, shows the cost curve and brick risk, and the AI Coach explains matchups and suggests substitutes from the cards you own.
- Health score, curve and brick risk
- Matchup guides and sideboard advice
- Card substitute finder based on your collection
- Player Intelligence: the strongest deck from your collection
Test it
Play it before you sleeve it
Load the deck into the Practice Arena and play full games against an AI opponent. The Battle Report after each match shows where the game turned.
See the practice simulator
Frequently asked questions
How many cards are in a One Piece TCG deck?
A One Piece Card Game deck has 1 Leader and exactly 50 cards, with no more than 4 copies of the same card number, plus a separate DON!! deck of 10 cards. Every card must share at least one colour with the Leader.
Is the deck builder free?
Yes. You can build and save decks for free. Mugipocket Pro removes the deck limit and adds Deck Intelligence, the AI Coach and matchup guides.
Does the builder know the current format?
Yes. Decks are checked against the current format, so cards that are not legal are flagged before you register for an event.
Can I test a deck after building it?
Yes. Load it into the Practice Arena and play full games against an AI opponent, then read the Battle Report.
Keep exploring
Free on iPhone and Android
Join 14,200+ players and collectors in 126 countries who use Mugipocket for prices, decks and practice.