
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 has 8 printings, first in Eldritch Moon (2016). EDHREC ranks it #770 among Commander cards. It appears most in Etali, Primal Conqueror // Etali, Primal Sickness decks (8,162 on EDHREC). It has 6 official rulings.
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.