Mask of Memory (MRD) from Mirrodin, available at 401 Games Canada.

• Rarity: Uncommon
• Finish: Normal
• Artist: Alan Pollack
• Card Text:
  Whenever equipped creature deals combat damage to a player, you may draw two cards. If you do, discard a card from your hand.
  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.)