Firebolt is a common Sorcery card from Duel Decks: Jace vs. Chandra (DD2), collector number 49. Current market price: $0.37, TCGplayer market prices via Scryfall.
Firebolt deals 2 damage to any target. Flashback {4}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.)