Ghastly Conscription

Delve(Each card you exile from your graveyard while casting this spell pays for {1}.)
Exile all creature cards from target player’s graveyard in a face-down pile, shuffle that pile, then manifest those cards. (To manifest a card, put it onto the battlefield face down as a 2/2 creature. Turn it face up any time for its mana
cost if it’s a creature card.)