Goldspan Dragon is a mythic Creature — Dragon card from Secrets of Strixhaven Commander (SOC), collector number 245. Current market price: $11.89, TCGplayer market prices via Scryfall.
Flying, haste Whenever this creature attacks or becomes the target of a spell, create a Treasure token. Treasures you control have "{T}, Sacrifice this artifact: Add two mana of any one color."