Winternight Stories (TDM) from Tarkir: Dragonstorm, available at 401 Games Canada.

• Rarity: Rare
• Finish: Normal
• Artist: Zara Alfonso
• Card Text:
  Draw three cards. Then discard two cards unless you discard a creature card.
  Harmonize 4U (You may cast this card from your graveyard for its harmonize cost. You may tap a creature you control to reduce that cost by X, where X is its power. Then exile this spell.)