Mizzium Meddler (ORI) from Magic Origins, available at 401 Games Canada.

• Rarity: Rare
• Finish: Normal
• Artist: Johann Bodin
• Card Text:
  Flash (You may cast this spell any time you could cast an instant.)
  When Mizzium Meddler enters the battlefield, change the target of target spell or ability to Mizzium Meddler