This clever loop leverages Mazirek, Kraul Death Priest as a transformer of sacrifice into raw growth, turning the self-sacrifice of Dark Sphere into a +1/+1 counter distributed across your board. That single counter on Evolution Witness is the catalyst for the entire engine, instantly triggering its ability to pluck Dark Sphere right back out of your graveyard and into your hand. By repeating this zero-mana cycle endlessly, you can rack up an unbounded storm count while continuously growing your creatures into titanic threats.