Tah-Crop Elite (AKH) from Amonkhet, available at 401 Games Canada.

• Rarity: Common
• Finish: Normal
• Artist: Raoul Vitale
• Card Text:
  Flying
  You may exert Tah-Crop Elite as it attacks. When you do, creatures you control get +1/+1 until end of turn. (An exerted creature won't untap during your next untap step.)