Commune with Dinosaurs is a common Sorcery card from Ixalan (XLN), collector number 181. Current market price: $0.14 (foil $0.76), TCGplayer market prices via Scryfall.
Look at the top five cards of your library. You may reveal a Dinosaur or land card from among them and put it into your hand. Put the rest on the bottom of your library in any order.