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.
Near Mint - $8.90
Lightly Played - $8.00
Played - $6.20
Heavily Played - $5.30
Damaged - $4.50
Near Mint Non-English - $8.90
Lightly Played Non-English - $8.00
Played Non-English - $6.20
Heavily Played Non-English - $5.30
Damaged Non-English - $4.50
Foil Prices
Near Mint Foil - $47.20
Lightly Played Foil - $42.50
Played Foil - $33.10
Heavily Played Foil - $28.40
Damaged Foil - $23.60
Near Mint Foil Non-English - $47.20
Lightly Played Foil Non-English - $42.50
Played Foil Non-English - $33.10
Heavily Played Foil Non-English - $28.40
Damaged Foil Non-English - $23.60