Reality Smasher (OGW) from Oath of the Gatewatch, available at 401 Games Canada.

• Rarity: Rare
• Finish: Normal
• Artist: Jason Rainville
• Card Text:
  (C represents colorless mana.)
  Trample, haste
  Whenever Reality Smasher becomes the target of a spell an opponent controls, counter that spell unless its controller discards a card.