Chatter of the Squirrel is a common Sorcery card from Double Masters (2XM), collector number 157. Current market price: $0.37 (foil $0.43), TCGplayer market prices via Scryfall.
Create a 1/1 green Squirrel creature token. Flashback {1}{G} (You may cast this card from your graveyard for its flashback cost. Then exile it.)