Shigeki, Jukai Visionary, Regrowth, and Turnabout

Prerequisites

• Shigeki, Jukai Visionary in hand
• Regrowth in the graveyard
• Turnabout in hand

Steps

1. Activate all lands you control by tapping them, adding at least
2. Cast Turnabout by paying , untapping all lands you control
3. Activate Shigeki's channel ability by paying and discarding it, returning Turnabout and Regrowth from your graveyard to your hand
4. Cast Regrowth by paying , returning Shigeki to your hand from your graveyard
5. Repeat

Results

• Infinite magecraft triggers
• Infinite mana basic lands you control can produce
• Infinite self-discard triggers
• Infinite storm count
• Infinite untap of basic lands you control
• Return most cards from your graveyard to your hand