Formats
Built-in formats plus any you create. Mark the ones you play, then randomize.
Classic (40 + 15 + 15)
builtinA 40-card Main Deck, a 15-card Extra Deck, and a 15-card Side Deck drawn at random from the entire catalog. Up to 3 copies of any card.
40 main · 15 extra · 15 side · ≤3 copies
Monsters Only (40)
builtinA pure 40-card Main Deck of monsters — no Spells or Traps, no Extra Deck. Up to 3 copies of any card.
40 main · ≤3 copies