Hellkite Courser (TDC) from Tarkir: Dragonstorm Commander, available at 401 Games Canada.

• Rarity: Mythic Rare
• Finish: Normal
• Artist: Caio Monteiro
• Card Text:
  Flying
  When this creature enters, you may put a commander you own from the command zone onto the battlefield. It gains haste. Return it to the command zone at the beginning of the next end step.