Scion Summoner (OGW) from Oath of the Gatewatch, available at 401 Games Canada.

• Rarity: Common
• Finish: Normal
• Artist: Johann Bodin
• Card Text:
  Devoid (This card has no color.)
  When Scion Summoner enters the battlefield, put a 1/1 colorless Eldrazi Scion creature token onto the battlefield. It has "Sacrifice this creature: Add C to your mana pool." (C represents colorless mana.)