Tengu format ruling
Huge Revolution
Card effect (current official text)This card can only be activated during your Main Phase when "People Running About", "Oppressed People", and "United Resistance" are face-up on your side of the field. Send all cards in your opponent's hand to the Graveyard and destroy all cards your opponent controls on the field.
Rulings
- When your opponent chains Book of Moon to your Huge Revolution and flips 1 of the 3 monsters face-down, Huge Revolution has already been activated correctly so the effect of Huge Revolution resolves.
- When your opponent chains Ring of Destruction to your Huge Revolution and destroys 1 of the 3 monsters, Huge Revolution has already been activated correctly so the effect of Huge Revolution resolves.
- Huge Revolution destroys both face-up and face-down cards.
- If your opponent activates Huge Revolution and you have Pandemonium Watchbear and Pandemonium, your Pandemonium card is not destroyed.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Tengu forum — sourced change requests get reviewed.