Cast Time Warp by paying its mana cost, causing you to take an extra turn after this one.
Cast Ghostly Flicker by paying 2, blinking Mystic Sanctuary and Pinnacle Monk // Mystic Peak.
When Pinnacle Monk // Mystic Peak and Mystic Sanctuary enter the battlefield, they trigger.
Resolve the Pinnacle Monk // Mystic Peak trigger, returning Ghostly Flicker from your graveyard to your hand.
Resolve the Mystic Sanctuary trigger, putting Time Warp from your graveyard onto the top of your library.
Move to your next turn, drawing Time Warp during your draw step.
Repeat.
This ingenious loop chains together to grant you infinite turns, effectively locking your opponents out of the game entirely. By casting Time Warp, you secure the extra time you need, while Pinnacle Monk // Mystic Peak steps in upon resolution to pluck Ghostly Flicker right back out of your graveyard. Meanwhile, Ghostly Flicker itself resets Mystic Sanctuary so that its landfall ability can effortlessly stack Time Warp back onto the top of your library just in time for your next draw step.