Cast Capture of Jingzhou 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 Skullwinder.
When Skullwinder and Mystic Sanctuary enter the battlefield, they trigger.
Resolve the Skullwinder trigger, returning Ghostly Flicker from your graveyard to your hand.
Resolve the Mystic Sanctuary trigger, putting Capture of Jingzhou from your graveyard onto the top of your library.
Move to your next turn, drawing Capture of Jingzhou during your draw step.
Repeat.
This elegant loop relies on recycling time itself by constantly reframing the battlefield through Ghostly Flicker. By targeting both Skullwinder and Mystic Sanctuary with the flicker, you trigger a cascade of graveyard reclamation: Skullwinder plucks Ghostly Flicker right back to your hand, while Mystic Sanctuary—thankfully untroubled by its normal entry restriction when returning directly via blink—neatly places a cast-off Capture of Jingzhou back on top of your library. You simply draw the extra-turn spell on your newly granted turn, replay it to keep the momentum going, and repeat the entire sequence indefinitely to lock down the game.