Druids' Repository (Foil) (AVR) from Avacyn Restored, available at 401 Games Canada.

• Rarity: Rare
• Finish: Foil
• Artist: Daarken
• Card Text:
  Whenever a creature you control attacks, put a charge counter on Druids' Repository.
  Remove a charge counter from Druids' Repository: Add one mana of any color to your mana pool.