Call of the Herd is a rare Sorcery card from Duel Decks: Mind vs. Might (DDS), collector number 44. Current market price: $0.28, 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.)