Big Score is a common Instant card from Streets of New Capenna (SNC), collector number 102. Current market price: $1.02 (foil $1.91), TCGplayer market prices via Scryfall.
As an additional cost to cast this spell, discard a card. Draw two cards and create two Treasure tokens. (They're artifacts with "{T}, Sacrifice this token: Add one mana of any color.")