Call of the Herd is a rare Sorcery card from Odyssey (ODY), collector number 231. Current market price: $21.83 (foil $203.76), TCGplayer market prices via Scryfall.
Create a 3/3 green Elephant creature token. Flashback {3}{G} (You may cast this card from your graveyard for its flashback cost. Then exile it.)