Panoptic Mirror, Dramatic Reversal, and Lithoform Engine

Prerequisites

• Panoptic Mirror on the battlefield
• Dramatic Reversal in exile
• Lithoform Engine on the battlefield
• available

Steps

1. At the beginning of your upkeep, Panoptic Mirror triggers
2. Holding priority, activate any number of nonland permanents you control by tapping them, adding at least
3. Activate Lithoform Engine's first ability by paying and tapping it, copying Panoptic Mirror's trigger
4. Resolve the copy of Panoptic Mirror's trigger, casting a copy of Dramatic Reversal without paying its mana cost
5. Resolve the copy of Dramatic Reversal, untapping all nonland permanents you xontrol
6. Repeat from step 2
7. Cast Dramatic Reversal, holding priority
8. Tap Lithoform Engine and spend to activate the second ability of Lithoform Engine, copying Dramatic Reversal
9. Allow the Dramatic Reversal copy to resolve, untapping your nonland permanents
10. Tap your nonland mana sources for at least
11. Repeat steps 2-4 for an infinite loop

Results

• Infinite colored mana
• Infinite colorless mana
• Infinite storm count
• Infinite magecraft triggers
• Infinite mana nonland permanents you control can produce
• Infinite untap of nonland permanents you control
• Infinite untap of nonland permanents