Unbreathing Horde (ISD) from Innistrad, available at 401 Games Canada.

• Rarity: Rare
• Finish: Normal
• Artist: Dave Kendall
• Card Text:
  Unbreathing Horde enters the battlefield with a +1/+1 counter on it for each other Zombie you control and for each Zombie card in your graveyard.
  If Unbreathing Horde would be dealt damage, prevent that damage and remove a +1/+1 counter from it.