Eternal Taskmaster (WAR) from War of the Spark, available at 401 Games Canada.

• Rarity: Uncommon
• Finish: Normal
• Artist: Tomasz Jedruszek
• Card Text:
  Eternal Taskmaster enters the battlefield tapped.
  Whenever Eternal Taskmaster attacks, you may pay 2B. If you do, return target creature card from your graveyard to your hand.