Tainted Field (Foil) (TOR) from Torment, available at 401 Games Canada.

• Rarity: Uncommon
• Finish: Foil
• Artist: Don Hazeltine
• Card Text:
  T: Add 1 colorless mana to your mana pool.
  T: Add W or B to your mana pool. Play this ability only if you control a swamp.