Activate Mystic Sanctuary and Gilded Lotus by tapping them, adding 3
Cast Ghostly Flicker either from your hand or from the top of your library by paying 2, blinking Mystic Sanctuary and Gilded Lotus.
When Mystic Sanctuary enters untapped, it triggers, putting Ghostly Flicker from your graveyard onto the top of your library.
Repeat.
This loop relies on the constant re-entry of Gilded Lotus and Mystic Sanctuary to perpetually recycle and cast Ghostly Flicker. Gilded Lotus provides the raw energy needed to pay for the spell each iteration, while Magus of the Future enables you to cast Ghostly Flicker straight from the top of your library without needing it in your hand. Every time the land is blinked back to the battlefield, Mystic Sanctuary triggers to place Ghostly Flicker right back onto the top of your library for Magus of the Future to grab once more.