Activate Emry by tapping it, allowing you to cast Tormod's Crypt from your graveyard.
Cast Tormod's Crypt by paying 0.
Displacer Kitten triggers, blinking Emry.
When Emry enters, it triggers, causing you to mill four cards.
Activate Tormod's Crypt by tapping and sacrificing it.
Repeat.
This clever loop revolves around Emry, Lurker of the Loch, whose tap ability lets you repeatedly pull Tormod's Crypt right back out of your graveyard for zero mana. Each time you cast that artifact, Displacer Kitten triggers to blink Emry, resetting her tap ability and triggering a fresh four-card mill upon re-entry. Meanwhile, Maelstrom Wanderer grants your entire board haste, ensuring that once you assemble the core loop, everything is ready to go immediately—though the true engine is fueled entirely by the recursive self-mill and sacrifice cycle of Tormod's Crypt itself.