Shadowborn Apostle is a common Creature — Human Cleric card from Magic 2014 (M14), collector number 114. Current market price: $1.76 (foil $3.28), 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.