Savage Punch is a common Sorcery card from Khans of Tarkir (KTK), collector number 147. Current market price: $0.11 (foil $2.88), TCGplayer market prices via Scryfall.
Target creature you control fights target creature you don't control. Ferocious — The creature you control gets +2/+2 until end of turn before it fights if you control a creature with power 4 or greater.