Basic lands you control can tap to produce at least ({5} magic symbol) ({G} magic symbol) ({G} magic symbol) ({G} magic symbol) ({G} magic symbol) ({G} magic symbol) ({U} magic symbol) .
Steps
Activate all basic lands you control by tapping them, adding at least ({5} magic symbol) ({G} magic symbol) ({G} magic symbol) ({G} magic symbol) ({G} magic symbol) ({G} magic symbol) ({U} magic symbol) .
Cast
Early Harvest by paying ({1} magic symbol) ({G} magic symbol) ({G} magic symbol) , untapping all basic lands you control.
Activate
Shigeki's channel ability by paying ({4} magic symbol) ({G} magic symbol) ({G} magic symbol) and discarding it, returning
Early Harvest and
Auroral Procession from your graveyard to your hand.
If basic lands you control can tap to produce at least ({6} magic symbol) ({G} magic symbol) ({G} magic symbol) ({G} magic symbol) ({G} magic symbol) ({G} magic symbol) ({U} magic symbol) , this combo nets infinite mana.
Results
Infinite storm count.
Infinite self-discard triggers.
Infinite magecraft triggers.
Infinite mana basic lands you control can produce.
Infinite untap of basic lands you control.
Return most cards from your graveyard to your hand.