Lands you control can tap to produce at least ({4} magic symbol) ({U} magic symbol) ({U} magic symbol) ({U} magic symbol) .
Steps
Activate any number of lands you control by tapping them, adding at least ({4} magic symbol) ({U} magic symbol) ({U} magic symbol) ({U} magic symbol) .
Cast
Turnabout by paying ({2} magic symbol) ({U} magic symbol) ({U} magic symbol) , untapping all lands you control.
Zealous Lorecaster enter the battlefield, they trigger, returning
Turnabout and
Ghostly Flicker from your graveyard to your hand.
Repeat.
Notes
If lands you control can tap to produce at least ({5} magic symbol) ({U} magic symbol) ({U} magic symbol) ({U} magic symbol) , this combo nets infinite mana. You can then stop casting
Turnabout and blink one other permanent using
Ghostly Flicker. You may also tap artifacts and/or creatures instead for mana if desired.
Results
Infinite ETB.
Infinite LTB.
Infinite blinking.
Infinite magecraft triggers.
Infinite mana permanents you control can produce.
Infinite storm count.
Infinite landfall triggers.
Metadata
In 0 decks according to EDHREC.
Bracket Tag
This combo has been estimated to be Exhibition (Bracket 1+).