This elegant loop starts by tapping Mystic Sanctuary and The Great Henge for mana—with The Great Henge's life gain keeping you afloat—to help cast Ghostly Flicker. That spell targets both lands to exile and return them to the battlefield, resetting Mystic Sanctuary so its triggered ability can place Ghostly Flicker right back onto the top of your library. From there, Precognition Field lets you peer into the future and continuously cast Ghostly Flicker from the top of your library without ever needing it in your hand.