Dragon Tempest (FDC) from Foundations Commander, available at 401 Games Canada.

• Rarity: Rare
• Finish: Normal
• Artist: Willian Murai
• Card Text:
  Whenever a creature you control with flying enters, it gains haste until end of turn.
  Whenever a Dragon you control enters, it deals X damage to any target, where X is the number of Dragons you control.