Exuberant Wolfbear (IKO) from Ikoria: Lair of Behemoths, available at 401 Games Canada.

• Rarity: Uncommon
• Finish: Normal
• Artist: Jesper Ejsing
• Card Text:
  Whenever Exuberant Wolfbear attacks, you may change the base power and toughness of target Human you control to Exuberant Wolfbear's power and toughness until end of turn.