Cloudthresher (CMA) from Commander Anthology, available at 401 Games Canada.

• Rarity: Rare
• Finish: Normal
• Artist: Christopher Moeller
• Card Text:
  Flash
  Reach
  When Cloudthresher enters the battlefield, it deals 2 damage to each creature with flying and each player.
  Evoke 2GG (You may cast this spell for its evoke cost. If you do, it's sacrificed when it enters the battlefield.)