Gravekeeper's Chief [PGD-065] Super Rare

You can have only 1 face-up "Gravekeeper's Chief" on your side of the field at any time. As long as this card remains face-up on the field, your Graveyard is not affected by "Necrovalley". When you Tribute Summon this monster, you can Special Summon 1 monster that includes "Gravekeeper's" in its card name from your Graveyard.