Ghostly Flicker + Mystic Sanctuary + Warden of the Eye + Time Stretch

Ghostly Flicker

Mystic Sanctuary

Warden of the Eye

Time Stretch

How it works

1. Activate Mystic Sanctuary by tapping it, adding .
2. Cast Time Stretch by paying its mana cost, causing you to take two extra turns after this one.
3. Move to your first extra turn.
4. Activate Mystic Sanctuary by tapping it, adding .
5. Cast Ghostly Flicker by paying 2, blinking Mystic Sanctuary and Warden of the Eye.
6. When Warden of the Eye and Mystic Sanctuary enter the battlefield, they trigger.
7. Resolve the Warden of the Eye trigger, returning Ghostly Flicker from your graveyard to your hand.
8. Resolve the Mystic Sanctuary trigger, putting Time Stretch from your graveyard onto the top of your library.
9. Move to your next turn, drawing Time Stretch during your draw step.
10. Repeat.

This brilliant loop hinges on Warden of the Eye and Mystic Sanctuary working in tandem to recycle your most powerful spells every time they enter the battlefield. By casting Ghostly Flicker, you reset both permanents, allowing Warden of the Eye to pull Ghostly Flicker right back to your hand while Mystic Sanctuary places Time Stretch from your graveyard directly onto the top of your library. Because Time Stretch grants you two extra turns to work with, you easily draw it on the subsequent turn, setting up an unbroken chain that locks down the game with infinite turns.