Shadow Prophecy is a common Instant card from Dominaria United (DMU), collector number 105. Current market price: $0.19 (foil $0.25), TCGplayer market prices via Scryfall.
Domain — Look at the top X cards of your library, where X is the number of basic land types among lands you control. Put up to two of them into your hand and the rest into your graveyard. You lose 2 life.