Jinxed Choker (MRD) from Mirrodin, available at 401 Games Canada.

• Rarity: Rare
• Finish: Normal
• Artist: Mike Dringenberg
• Card Text:
  At the end of your turn, target opponent gains control of Jinxed Choker and puts a charge counter on it.
  At the beginning of your upkeep, Jinxed Choker deals damage to you equal to the number of charge counters on it.
  3: Put a charge counter on Jinxed Choker or remove one from it.