Zethi, Arcane Blademaster, Lithoform Engine, and Dramatic Reversal

Prerequisites

• Zethi, Arcane Blademaster on the battlefield
• Lithoform Engine on the battlefield
• Dramatic Reversal in exile
• Dramatic Reversal is exiled with a kick counter on it
• Zethi does not have summoning sickness
• Nonland permanents you control can tap to produce at least

Steps

1. Declare Zethi as an attacker, triggering its second ability
2. Holding priority, activate all mana producing nonland permanents you control by tapping them, adding at least
3. Activate Lithoform Engine's first ability by paying and tapping it, copying Zethi's triggered ability
4. Resolve the copy of Zethi's ability, creating a copy of each card exiled with a kick counter of it and causing you to pay to cast the copy of Dramatic Reversal
5. Resolve the Dramatic Reversal copy, untapping all nonland permanents you control
6. Repeat from step 2
7. Once you have infinite mana, you may use that mana to then cast the copies of all other cards exiled with kick counters on them

Results

• Infinite casts of all cards exiled with kick counters on them
• Infinite colored mana
• Infinite colorless mana
• Infinite magecraft triggers
• Infinite mana nonland permanents you control can produce
• Infinite storm count
• Infinite untap for nonland permanents
• Infinite untap of nonland permanents you control