Treacherous Pit-Dweller (AVR) from Avacyn Restored, available at 401 Games Canada.

• Rarity: Rare
• Finish: Normal
• Artist: Svetlin Velinov
• Card Text:
  When Treacherous Pit-Dweller enters the battlefield from a graveyard, target opponent gains control of it.
  Undying (When this creature dies, if it had no +1/+1 counters on it, return it to the battlefield under its owner's control with a +1/+1 counter on it.)