Unexpected Windfall is a mythic Instant card from Marvel Universe (MAR), collector number 29. Current market price: $5.02 (foil $8.14), 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.")