Void Attendant (BFZ) from Battle for Zendikar, available at 401 Games Canada.

• Rarity: Uncommon
• Finish: Normal
• Artist: Viktor Titov
• Card Text:
  Devoid (This card has no color.)
  1G, Put a card an opponent owns from exile into that player's graveyard: Put a 1/1 colorless Eldrazi Scion creature token onto the battlefield. It has "Sacrifice this creature: Add 1 to your mana pool."