Mindslaver (SOM) from Scars of Mirrodin, available at 401 Games Canada.

• Rarity: Mythic Rare
• Finish: Normal
• Artist: Volkan Baǵa
• Card Text:
  4, T, Sacrifice Mindslaver: You control target player during that player's next turn. (You see all cards that player could see and make all decisions for the player.)