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.
![Eldritch Evolution (Borderless) [Secret Lair Showdown]](http://www.cosmicgames.com/cdn/shop/files/f743b688-25e8-421e-97b5-d294dda34817_ad616e17-37fb-412a-99f6-8a09aea75f0a.png?v=1759832968&width=1445)
