Archnemesis (MSC) from Marvel Super Heroes Commander, available at 401 Games Canada.

• Rarity: Rare
• Finish: Normal
• Artist: Riccardo Federici
• Card Text:
  Enchant opponent
  Whenever you attack enchanted player, that player loses 2 life. You draw a card and gain 2 life.
  Whenever a player attacks you, you may attach this Aura to that player.