Card Rules: Rulings powered by The Netrep API. When this card's effect is active , both Decks are flipped upside down and now the face of the top card of the Deck is showing. If a card effect requires a player to shuffle their Deck it is shuffled and cut face-down so the cards are not seen and then placed face-up in the Deck Zone. If a 'Parasite Paracide' is face-up in your Deck before this card is activated it will become face-down once this card is active. Its effect will still activate when it is drawn. If 2 copies of 'Convulsion of Nature' are active the Decks are still upside-down (they do not revert to normal). [Re: Archfiend's Oath] You can activate 'Archfiend's Oath' while 'Convulsion of Nature' is active. [Re: Grave Lure] If your Deck is already face-up because of 'Convulsion of Nature' then the card from 'Grave Lure' is turned face-down. [Re: Pharaoh's Treasure] If 'Convulsion of Nature' is active place 'Pharaoh's Treasure' face-down so that it is the opposite direction of the rest of the cards. [Re: Senri Eye] You can use the effect of 'Senri Eye' if the top card on the Deck is face-up (due to 'Convulsion of Nature' or 'Parasite Paracide') and in that case you don't hide the card from your opponent. Passcode: 62966332 Set: Dark Beginnings 2 Card Number: DB2-EN193 Rarity: Common Attribute: Spell Card Text: As long as this card remains face-up on the field both players must turn their respective Decks upside down and proceed with the current Duel. Card Type: Continuous Spell Name: Convulsion of Nature Edition: Unlimited