Rage of Purphoros is a common Sorcery card from Theros (THS), collector number 137. Current market price: $0.07 (foil $0.28), TCGplayer market prices via Scryfall.
Rage of Purphoros deals 4 damage to target creature. It can't be regenerated this turn. Scry 1. (Look at the top card of your library. You may put that card on the bottom.)