This loop is a masterclass in exploiting stack interactions, turning Aang, Swift Savior // Aang and La, Ocean's Fury into a self-replicating spell engine. With Reflections of Littjara set to the Avatar's creature type, every time you cast Aang, the enchantment duplicates it right onto the stack. When the token copy resolves and enters the battlefield, its airbend ability exiles the original physical Aang card still waiting on the stack, which you can then recast for a mere {2}. Normally that would cost mana, but Centaur Omenreader's static ability—providing a {2} discount as long as it is tapped—reduces that casting cost all the way down to zero. This lets you endlessly loop the cast, copy, exile, and re-cast cycle for infinite enters-the-battlefield triggers, storm count, and death triggers under the legend rule.