Activate Mystic Sanctuary and The Eternity Elevator by tapping them, adding CCC.
Cast Ghostly Flicker either from your hand or from the top of your library by paying 2, blinking Mystic Sanctuary and The Eternity Elevator.
When Mystic Sanctuary enters untapped, it triggers, putting Ghostly Flicker from your graveyard onto the top of your library.
Repeat.
This clever engine loops Ghostly Flicker to endlessly refresh your mana and manipulate your library. The Eternity Elevator provides the raw mana needed to cast your spells while acting as a prime target to blink alongside Mystic Sanctuary. When Mystic Sanctuary enters the battlefield untapped, its triggered ability lets you seamlessly recycle Ghostly Flicker right back to the top of your library. From there, Precognition Field ties the whole room together by letting you peer at your library and recast the spell from the top without ever missing a beat.