This loop hinges on a clever recursive engine powered by Emry, Lurker of the Loch, whose tap ability lets you continually pull Delif's Cone straight from your graveyard for a cost of zero. Each time you cast that artifact, Displacer Kitten triggers off the noncreature spell to blink Emry, resetting its tap ability while also churning through your library thanks to Emry's mill-four entrance trigger. Meanwhile, Fires of Yavimaya grants your board haste to keep the tempo moving, and its sacrifice ability is neatly mirrored by Delif's Cone getting sacrificed as part of the loop to keep the triggers flowing endlessly.