This clever loop turns your entire creature base into a self-sustaining mana and land engine, fueled by Ashaya, Soul of the Wild transforming every nontoken creature you control into a Forest land. Sakura-Tribe Scout takes advantage of this by repeatedly dropping Arid Archway from your hand onto the battlefield, which immediately triggers Stone-Seeder Hierophant's landfall ability to untap itself. Because Ashaya makes the Hierophant a land, its active tap ability can also target itself—or in this case, untap Sakura-Tribe Scout—while Arid Archway's own entry trigger bounces itself right back to your hand to keep the cycle going.