Nightshade Seer (UDS) from Urza's Destiny, available at 401 Games Canada.

• Rarity: Uncommon
• Finish: Normal
• Artist: Donato Giancola
• Card Text:
  2B, T: Reveal any number of black cards in your hand. Target creature gets -X/-X until end of turn, where X is the number of cards revealed this way.