Ghostly Flicker + Mystic Sanctuary + Time Stretch + Izzet Chronarch

Ghostly Flicker

Mystic Sanctuary

Time Stretch

Izzet Chronarch

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 Izzet Chronarch.
6. When Izzet Chronarch and Mystic Sanctuary enter the battlefield, they trigger.
7. Resolve the Izzet Chronarch 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 leveraging Mystic Sanctuary and Izzet Chronarch to continuously recycle your most powerful spells. By casting Time Stretch, you secure the consecutive extra turns needed to keep your engine running without interruption. Ghostly Flicker serves as the vital glue, repeatedly resetting both Mystic Sanctuary to stack your library and Izzet Chronarch to return the flicker itself right back to your hand.