Skullclamp (DST) from Darksteel, available at 401 Games Canada.

• Rarity: Uncommon
• Finish: Normal
• Artist: Luca Zontini
• Card Text:
  Equipped creature gets +1/-1.
  When equipped creature is put into a graveyard, draw two cards.
  Equip 1 (1: Attach to target creature you control. Equip only as a sorcery. This card comes into play unattached and stays in play if the creature leaves play.)