Passcode: 70000776 Set: Legacy of the Valiant Card Number: LVAL-EN066 Rarity: Rare Card Text: Activate only if both a "Gravekeeper's" monster and "Necrovalley" are on the field. Neither player can Special Summon monsters , except "Gravekeeper's" monsters. If either a "Gravekeeper's" monster or "Necrovalley" is not on the field destroy this card. Card Type: Spell Card Name: Hidden Temples of Necrovalley Edition: 1st