Viscerid Drone (CST) from Coldsnap Theme Decks, available at 401 Games Canada.

• Rarity: Uncommon
• Finish: Normal
• Artist: Heather Hudson
• Card Text:
  T, Sacrifice a creature and a Swamp: Destroy target nonartifact creature. It can't be regenerated.
  T, Sacrifice a creature and a snow Swamp: Destroy target creature. It can't be regenerated.