Rapacious One (ROE) from Rise of the Eldrazi, available at 401 Games Canada.

• Rarity: Uncommon
• Finish: Normal
• Artist: Jason A. Engle
• Card Text:
  Trample
  Whenever Rapacious One deals combat damage to a player, put that many 0/1 colorless Eldrazi Spawn creature tokens onto the battlefield. They have "Sacrifice this creature: Add 1 to your mana pool."