Ageless Sentinels (Foil) (SCG) from Scourge, available at 401 Games Canada.

• Rarity: Rare
• Finish: Foil
• Artist: Tony Szczudlo
• Card Text:
  (Walls can't attack.)
  Flying
  When Ageless Sentinels blocks, it becomes creature type Giant Bird. (It's no longer a Wall. This effect doesn’t end at end of turn.)