Spoiler warning. This page gives away the puzzle from 26 October 2025. If you have not played it yet, try it first – five guesses, and it is still there.
The sacred valley that protects graveyards and boosts gravekeepers.
Type: Spell Card
Set: Astral Pack Four
CardMarket price: 1.72$
Text: All "Gravekeeper's" monsters gain 500 ATK and DEF. Cards in the Graveyard cannot be banished. Negate any card effect that would move a card in the Graveyard to a different place. Negate any card effect that changes Types or Attributes in the Graveyard.