When a Spell Card, Trap Card, or monster effect is activated, while both a "Gravekeeper's" monster and "Necrovalley" are on the field: Negate the activation, and if you do, destroy it. You can only activate 1 "Imperial Tombs of Necrovalley" per turn.
- Number:LVAL-EN076
- Rarity:Secret Rare
- Attribute Monster Type/Card Type:TRAP Trap/Normal Trap
- Artist:Trap