Isochron Scepter, To Arms!, and Tezzeret's Touch

Prerequisites

• Isochron Scepter on the battlefield
• To Arms! in exile
• Tezzeret's Touch on the battlefield
• Tezzeret's Touch attached to Isochron Scepter
• You control creatures that can tap to produce at least

Steps

1. Activate creatures you control by tapping those, adding
2. Activate Isochron Scepter by paying and tapping it, casting a copy of To Arms! without paying its mana cost, untapping all creatures
3. Repeat

Results

• Infinite mana creatures you control can produce
• Infinite storm count