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

• Rarity: Mythic Rare
• Finish: Normal
• Artist: Mark Zug
• Card Text:
  Living Weapon (When this Equipment enters the battlefield, create a 0/0 black Germ creature token, then attach this to it.)
  Equipped creature gets +4/+4 and has vigilance and lifelink.
  3: Return Batterskull to its owner's hand.
  Equip 5