Coax from the Blind Eternities is a rare Sorcery card from Eldritch Moon Promos (PEMN), collector number 51s. Current market price: — (foil $1.04), TCGplayer market prices via Scryfall.
You may reveal an Eldrazi card you own from outside the game or choose a face-up Eldrazi card you own in exile. Put that card into your hand.