Migratory Route is a uncommon Sorcery card from Commander Anthology Volume II (CM2), collector number 161. Current market price: $0.44, TCGplayer market prices via Scryfall.
Create four 1/1 white Bird creature tokens with flying. Basic landcycling {2} ({2}, Discard this card: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.)