Shadowborn Apostle is a rare Creature — Human Cleric card from Secret Lair Drop (SLD), collector number 687. Current market price: — (foil $11.36), TCGplayer market prices via Scryfall.
A deck can have any number of cards named Shadowborn Apostle. {B}, Sacrifice six creatures named Shadowborn Apostle: Search your library for a Demon creature card, put it onto the battlefield, then shuffle.