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Dueltainer Format Rules

  1. Base rules: Standard TCG rules apply unless changed below. Read the rulebook.
  2. No modern mechanics: Xyz, Link, and Pendulum are not used. There are no Pendulum Zones and no Extra Monster Zones.
  3. No Side Deck.
  4. Singleton: You may play only 1 copy of each card name.
    • Exempt list: Cards on this list may be played up to 3 copies.
    • “Treated as” cards (e.g., Legendary Ocean, Harpie Lady 1/2/3) count as their printed names and can be played together.
  5. Power limits:
    • Banned: Not allowed.
    • A-Tier: Up to 3 A-Tier cards total per deck.
    • B-Tier: Up to 5 B-Tier cards total per deck.
    You can use both the 3 A-Tier and 5 B-Tier allowances together.

    If a card is on A/B-Tier and also on Exempt, extra copies still count toward A/B totals. Example: Destiny HERO – Malicious uses 3 of your 5 B-Tier slots at 3 copies.

  6. Proxies (TCG-legal only): OCG cards are not legal. Printed or handwritten proxies must include Name, Attribute & Type, full Effect (if any), and ATK/DEF.
  7. Normal Summon in Defense: Allowed.
  8. Use current text: Always use the latest errata/rulings (e.g., Chaos Emperor Dragon, Future Fusion). Sources: Errata Wiki and Konami DB.