Moonveil Regent (DBL) from Innistrad: Double Feature, available at 401 Games Canada.

• Rarity: Mythic Rare
• Finish: Normal
• Artist: Joshua Raphael
• Card Text:
  Flying
  Whenever you cast a spell, you may discard your hand. If you do, draw a card for each of that spell’s colors.
  When Moonveil Regent dies, it deals X damage to any target, where X is the number of colors among permanents you control.