Herd Migration is a rare Sorcery card from Dominaria United Promos (PDMU), collector number 165s. Current market price: — (foil $0.49), TCGplayer market prices via Scryfall.
Domain — Create a 3/3 green Beast creature token for each basic land type among lands you control. {1}{G}, Discard this card: Search your library for a basic land card, reveal it, put it into your hand, then shuffle. You gain 3 life.