Globnaalk's Collection

When Globnaalk's Collection enters the battlefield, create X 1/1 red goblin creature tokens where X is the number of Gold tokens you control.
Forecast - {2}{r}, Reveal Globnaalk's Collection from your hand: Create an artifact tokens named Gold. It has "Sacrifice this artifact: add one mana of any color to your mana pool." (Activate this ability only during your upkeep and only once each turn.)