This ingenious loop relies on Patron of the Moon's active ability to repeatedly cheat lands into play, using Orzhov Basilica's own enters-the-battlefield trigger to bounce itself right back to your hand for the next iteration. As those lands flood the battlefield, Nissa, Resurgent Animist watches over the operation with her landfall ability, converting every single cycle into a fresh influx of mana. It is a wonderfully self-contained engine that transforms a humble bounce land into an endless well of triggers.