Auna, Astute Benefactor

+1: Put a colorless artifact token named Gold onto the battlefield. It has "Sacrifice this artifact: Add one mana of any color to your mana pool."
-1: Target opponent loses 2 life and you gain 2 life for each token named Gold you control.
-6: You get an emblem with "Whenever you sacrifice a token named Gold, you may exile target creature."