All guides · 2026-09-28 · TCGSwap
A One Piece deck is a Leader plus a 50-card main deck of Characters, Events and Stages. Your DON!! deck is separate and isn't built.
Standard enforces all the rules above. Custom removes size, copy and colour limits for casual building.
The deck builder flags anything that breaks the size, copy or colour rules — including a card whose colours don't match your Leader — without blocking you from saving a deck you're still working on.
Stats breaks the deck down by card type and colour and runs consistency checks. The playtest Playmat has Characters and Stage zones and a DON!! counter that gives DON!! to your Leader each turn — see how to playtest your deck.
Have a list already? Import it from OPTCGSim, Limitless or a typed list.