Wurmcalling (TSP) from Time Spiral, available at 401 Games Canada.

• Rarity: Rare
• Finish: Normal
• Artist: Jeff Easley
• Card Text:
  Buyback 2G (You may pay an additional 2G as you play this spell. If you do, put this card into your hand as it resolves.)
  Put an X/X green Wurm creature token into play.