Edison format ruling
Black Tyranno
Card effect (current official text)If the only cards your opponent controls are Defense Position monsters, this card can attack directly.
Rulings
- If there is a Spell or Trap Card on your opponent's side of the field, Black Tyranno cannot attack directly.
- If there is an Attack Position monster on your opponent's side of the field, Black Tyranno cannot attack directly.
- If your opponent has only Defense Position monsters on his side of the field, Black Tyranno can attack directly even if some are face-down.
- If an effect resolves during the Battle Step of Black Tyranno's direct attack that results in a Spell Card, Trap Card, or Attack Position monster being on your opponent's side of the field, a replay occurs.
- If your opponent's only monster is in face-up Defense Position, but it is equipped with Ring of Magnetism, Black Tyranno must attack that monster if Black Tyranno attacks.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Edison forum — sourced change requests get reviewed.