Edison format ruling
Mechanical Hound
Card effect (current official text)While you have no cards in your hand, your opponent cannot activate Spell Cards.
Rulings
- "Activate" means make the card face-up, or activate it from your hand. If "Mechanical Hound" is face-up on the field, your opponent can still use the effects of Continuous Spell Cards that are already face-up on the field.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Edison forum — sourced change requests get reviewed.