Dig Up is a rare Sorcery card from Innistrad: Crimson Vow Promos (PVOW), collector number 197p. Current market price: $0.43 (foil $0.49), TCGplayer market prices via Scryfall.
Cleave {1}{B}{B}{G} (You may cast this spell for its cleave cost. If you do, remove the words in square brackets.) Search your library for a [basic land] card, [reveal it,] put it into your hand, then shuffle.