Grim Monolith (Foil) (ULG) from Urza's Legacy, available at 401 Games Canada.

• Rarity: Rare
• Finish: Foil
• Artist: Chippy
• Card Text:
  Grim Monolith does not untap during your untap phase.
  T: Add three colorless mana to your mana pool. Play this ability as a mana source.
  4: Untap Grim Monolith.