Eldritch Evolution EMN-155/5075 (The List Reprints)

As an additional cost to cast this spell, sacrifice a creature. Search your library for a creature card with mana value X or less, where X is 2 plus the sacrificed creature's mana value. Put that card onto the battlefield, then shuffle. Exile Eldritch Evolution.

NM - $5.60
LP - $4.70
MP - $3.40
DMG - $1.50