Steel Hellkite (FDC) from Foundations Commander, available at 401 Games Canada.

• Rarity: Rare
• Finish: Normal
• Artist: James Paick
• Card Text:
  Flying
  2: This creature gets +1/+0 until end of turn.
  X: Destroy each nonland permanent with mana value X whose controller was dealt combat damage by this creature this turn. Activate only once each turn.