Necrovalley (TU02-EN014) [Turbo Pack: Booster Two]

All Gravekeeper's monsters gain 500 ATK and DEF. Cards in either player's Graveyard cannot be <font color="red">banished.</font> Cards in either player's Graveyard cannot be affected by card effects, except for their own effects.
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<br><em><font color="red">(Red text indicates errata.)</em></font>