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 (Retro Frame) [Innistrad Remastered]](http://tothetablebgc.myshopify.com/cdn/shop/files/b6ffb44b-20f0-4a08-9030-0160bd5ec544_4f5981f9-b5b8-4794-a32e-cd9d802b4575.png?v=1776651550&width=1445)
