Bloodspore Thrinax (2XM) from Double Masters, available at 401 Games Canada.

• Rarity: Rare
• Finish: Normal
• Artist: Ralph Horsley
• Card Text:
  Devour 1 (As this enters the battlefield, you may sacrifice any number of creatures. This creature enters the battlefield with that many +1/+1 counters on it.)
  Each other creature you control enters the battlefield with an additional X +1/+1 counters on it, where X is the number of +1/+1 counters on Bloodspore Thrinax.