Illegal
If a card is Illegal, it means it cannot be used in the official card game at all, including tournaments. The only exception to this is friendly duels where both duelists agree on the Illegal cards in question in terms of their effects. All fan-made and counterfeit cards are also illegal. So far, these are the only illegal cards:
TCG
English
- None.
OCG
Asian-English
- Chimaera, the Master of Beasts
- Obelisk the Tormentor (original)
- Slifer the Sky Dragon
- Testament of the Arcane Lords
- The Winged Dragon of Ra (original)
Japanese
- Black Luster Soldier (DM)
- Fiend's Mirror (DM)
- Obelisk the Tormentor (original)
- Masahiro the Dark Clown
- Slifer the Sky Dragon
- Super War-Lion (DM)
- The Winged Dragon of Ra (original)
- Tomohiro the Mountain Warrior
- Yasushi the Skull Knight
- Zera the Mant (DM)