Turnabout + Ghostly Flicker + Shipwreck Dowser + Donnie & April, Adorkable Duo

Turnabout

Ghostly Flicker

Shipwreck Dowser

Donnie & April, Adorkable Duo

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 Donnie & April and Shipwreck Dowser.
4. When Donnie & April and Shipwreck Dowser enter the battlefield, they trigger, returning Turnabout and Ghostly Flicker from your graveyard to your hand.
5. Repeat.

This loop relies on a brilliant cyclical recovery engine to continuously squeeze absurd amounts of mana and value out of your library. By casting Ghostly Flicker to exile and re-enter both Shipwreck Dowser and Donnie & April, Adorkable Duo, you trigger their entry abilities to recur your spells: the Dowser fishes back your instant or sorcery, while Donnie & April's second mode ensures an instant, sorcery, or artifact can be plucked straight from the graveyard right alongside it. This allows you to effortlessly pull Turnabout and Ghostly Flicker back to your hand every single iteration. With Turnabout generating a net-positive surge of mana by untapping your lands each cycle, the entire operation becomes self-sustaining and endlessly repeatable.