Eldritch Evolution (EMN) from Eldritch Moon, available at 401 Games Canada.

• Rarity: Rare
• Finish: Normal
• Artist: Jason Rainville
• Card Text:
  As an additional cost to cast Eldritch Evolution, sacrifice a creature.
  Search your library for a creature card with converted mana cost X or less, where X is 2 plus the sacrificed creature's converted mana cost. Put that card onto the battlefield, then shuffle your library. Exile Eldritch Evolution.