Skinthinner (C19) from Commander 2019, available at 401 Games Canada.

• Rarity: Common
• Finish: Normal
• Artist: Kev Walker
• Card Text:
  Morph 3BB (You may cast this card face down as a 2/2 creature for 3. Turn it face up any time for its morph cost.)
  When Skinthinner is turned face up, destroy target nonblack creature. It can’t be regenerated.