Rootha, Mercurial Artist, Dramatic Reversal, and Winding Canyons

Prerequisites

• Rootha, Mercurial Artist on the battlefield
• Dramatic Reversal in hand
• Winding Canyons on the battlefield
• Nonland permanents you control can tap to produce at least
• available

Steps

1. Activate all mana-producing nonland permanents you control by tapping them, adding at least
2. Activate Winding Canyons's second ability by paying and tapping it, allowing you to cast creature spells this turn as though they had flash
3. Cast Dramatic Reversal by paying
4. Activate Rootha by paying and returning it to your hand, copying Dramatic Reversal
5. Resolve the Dramatic Reversal copy, untapping all nonland permanents you control
6. Activate all mana-producing nonland permanents you control by tapping them, adding at least
7. Cast Rootha by paying
8. Repeat from step 4
9. If nonland permanents you control can tap to produce at least , this combo nets infinite mana

Results

• Infinite ETB
• Infinite LTB
• Infinite magecraft triggers
• Infinite mana nonland permanents you control can produce
• Infinite storm count
• Infinite untap of nonland permanents you control