Patron of the Wealth

Human or Vampire offering (You may cast this
card any time you could cast an instant by sacrificing
a Human or Vampire and paying the difference in
mana costs between this and the sacrificed Human or
Vampire. Mana cost includes color.)
Lifelink
Whenever you gain life, create a colorless
Treasure artifact token with "{t}, Sacrifice this artifact: Add one mana of any color."