Necrovalley Temple

While you control "Necrovalley" and a white and
black Cleric card, creatures your opponents
control get -1/-1.
{t}: Place "Necrovalley" from your hand or
graveyard onto the battlefield.
When this card is destroyed by an opponent's
spell or ability, you may cast a black and white
instant or sorcery card from your library without paying its mana cost, then shuffle your library.