Emberhorn Minotaur (J25) from Foundations Jumpstart, available at 401 Games Canada.

• Rarity: Common
• Finish: Normal
• Artist: Viktor Titov
• Card Text:
  You may exert Emberhorn Minotaur as it attacks. When you do, it gets +1/+1 and gains menace until end of turn. (An exerted creature won't untap during your next untap step. A creature with menace can't be blocked except by two or more creatures.)