Kolaghan, the Storm's Fury (FRF) from Fate Reforged, available at 401 Games Canada.

• Rarity: Rare
• Finish: Normal
• Artist: Jaime Jones
• Card Text:
  Flying
  Whenever a Dragon you control attacks, creatures you control get +1/+0 until end of turn.
  Dash 3BR (You may cast this spell for its dash cost. If you do, it gains haste, and it's returned from the battlefield to its owner's hand at the beginning of the next end step.)