Turnabout + Ghostly Flicker + Scrivener + Izzet Chronarch

Turnabout

Ghostly Flicker

Scrivener

Izzet Chronarch

How it works

1. Activate any number of lands you control by tapping them, adding at least 4.
2. Cast Turnabout by paying 2, untapping all lands you control.
3. Cast Ghostly Flicker by paying 2, blinking Izzet Chronarch and Scrivener.
4. When Izzet Chronarch and Scrivener enter the battlefield, they trigger, returning Turnabout and Ghostly Flicker from your graveyard to your hand.
5. Repeat.

This spell-loop hinges on the powerful recursive triggers of both Scrivener and Izzet Chronarch, which together scavenge your graveyard clean every time they hit the battlefield. By targeting the pair with Ghostly Flicker, you continuously reset their entry abilities to pull both Ghostly Flicker and Turnabout right back to your hand. Meanwhile, Turnabout serves as the engine's crucial heavy lifter, untapping your entire land base to completely refund the mana spent and fuel the next iteration of the loop.