Chelonian Tackle is a uncommon Sorcery card from Secrets of Strixhaven (SOS), collector number 142. Current market price: $0.14 (foil $0.27), TCGplayer market prices via Scryfall.
Target creature you control gets +0/+10 until end of turn. Then it fights up to one target creature an opponent controls. (Each deals damage equal to its power to the other.)