Introducing the new “Gravekeeper” Monsters!
All of the new monsters this time are DARK Spellcaster-Type monsters. Let’s check out the key features of each card!

New Spells and Traps Also Appear!
A powerful new Spell and Trap appear, that both rely on a “Gravekeeper” and the card “Necrovalley” to activate!

The Number of “Gravekeeper” and “Necrovalley” related cards that can work together to seal your opponent’s moves have increased!

What will you use to build you “Gravekeeper” Deck!

▼ Search for releated cards that have been released
“Gravekeeper” Cards
Cards that mention “Gravekeeper” in their Card Text
“Necrovalley” Cards
Cards that mention “Necrovalley” in their Card Text

Source:
https://www.yugioh-card.com/japan/topics/?20131213