Necrovalley

<b><font color="red">New Font Errata:</b> All "Gravekeeper's" monsters gain 500 ATK and DEF. Cards in either player's Graveyard cannot be banished. Negate any card effect that would move a card in the Graveyard, other than itself, to a different place.</font> <br> <br><em>As long as this card remains face-up on the field, all effects of Magic, Trap, and/or Effect Monster Cards that involve Graveyards are negated and neither player can remove cards in the Graveyards from play. In addition, increase the ATK and DEF of all monsters that includes Gravekeeper's in their card name by 500 points.</em>