Goat format ruling
Ground Collapse
Card effect (current official text)Select 2 Main Monster Zones on the field. Neither player can use the selected zones. You cannot select a zone that is occupied by a Monster Card.
Rulings
- Can you select one of each player’s monster zones with "Ground Collapse"? A: You may select 1 of your monster zones and 1 of your opponent's monster zones with the same Ground Collapse.
- Q: If "Imperial Order" is activated while "Ground Collapse" is targeting two of the opponent’s Monster Zone spaces, will the opponent be allowed to summon monsters in those spaces and what happens to the monsters if "Imperial Order" is removed from the field? A: The monster in that monster zone when Imperial Order is negated or leaves play would be fine. When the monster is removed from the monster zone it would become off-limits again. (Due to Ground Collapse) So let's say I have 2 Ground Collapses, each blocking off 2 of my opponent's Monster Zone spaces. They activate Imperial Order, negating the effect of my Ground Collapses. My opponent could then use those Monster Zones again for Setting and Summoning Monsters. If Imperial Order is negated (e.g. Jinzo, Royal Decree) or is removed from the field, any monster my opponent has in one of the affected Monster Zones will be fine. When that monster leaves (it is destroyed, etc.) the affected Monster Zone, my opponent would not be able to Summon or Set any monsters into that affected Monster Zone because my Ground Collapses are in effect again.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Goat forum — sourced change requests get reviewed.