- This card can be activated when a Spell/Trap Card is activated, but it cannot be activated when a Spell/Trap effect is activated.
- ↑ 1.0 1.1 1.2 Konami OCG Card Database: Imperial Tombs of Necrovalley
- ↑ Konami OCG Card Database: If the only card on the field is "Gravekeeper's Priestess", can "Hidden Temples of Necrovalley" or "Imperial Tombs of Necrovalley" be activated?
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