Glorybringer (AKH) from Amonkhet, available at 401 Games Canada.

• Rarity: Rare
• Finish: Normal
• Artist: Sam Burley
• Card Text:
  Flying, haste
  You may exert Glorybringer as it attacks. When you do, it deals 4 damage to target non-Dragon creature an opponent controls. (An exerted creature won't untap during your next untap step.)