Thirty cards, at least 12 of your Style and 8 of its Foundation. Up to two
copies of any card. Style cards must match your Style, Foundation cards your Style's Foundation;
Universal cards are legal in every deck.
Start a deck
Your Style decides your colour and which cards you may use.
Or start from a built-in deck
Copies the list and the Style. Yours to edit; the original is untouched.