Boneyard Parley is a mythic Sorcery card from Ixalan Promos (PXLN), collector number 94s. Current market price: — (foil $1.37), TCGplayer market prices via Scryfall.
Exile up to five target creature cards from graveyards. An opponent separates those cards into two piles. Put all cards from the pile of your choice onto the battlefield under your control and the rest into their owners' graveyards.