Gravitic Punch is a common Sorcery card from Guilds of Ravnica (GRN), collector number 105. Current market price: $0.16 (foil $0.60), TCGplayer market prices via Scryfall.
Target creature you control deals damage equal to its power to target player. Jump-start (You may cast this card from your graveyard by discarding a card in addition to paying its other costs. Then exile this card.)