Smaug, the Terrible

Flying, Haste
Whenever Smaug, the Terrible deals combat
damage to a player, create three
colorless Treasure artifact tokens with
"{t}, Sacrifice this artifact:
Add one mana of any color to your mana pool."
As long as you control atleast one
Treasure token, Smaug, the Terrible doesn't
untap during your untap step.