Goldspan Dragon 212 (Commander: Modern Horizons 3)

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."

NM - $11.00
LP - $8.80
MP - $6.60
HP - $4.40
DMG - $2.20