This loop hinges on a clever cost-reduction setup where Sami, Wildcat Captain makes your spells cost `{1}` less for each artifact you control, paving the way for you to cast Airbending Lesson and Lutri, the Spellchaser for free or next to nothing. When Lutri enters the battlefield having been cast, its triggered ability copies Airbending Lesson, which then targets Lutri to exile it via its airbend effect. Because Airbending Lesson lets you cast the exiled permanent for just `{2}`—and Sami's affinity for artifacts reduces that cost down to `{0}`—you can repeatedly loop Lutri back onto the battlefield, generating infinite card draw and near-infinite creature triggers.