Isochron Scepter, Swarm Intelligence, Burst of Energy, and Basalt Monolith

Prerequisites

• Isochron Scepter on the battlefield
• Swarm Intelligence on the battlefield
• Burst of Energy in exile
• Basalt Monolith on the battlefield

Steps

1. Activate Basalt Monolith's first ability by tapping it, adding
2. Activate Isochron Scepter by paying and tapping it, casting a copy of Burst of Energy without paying its mana cost, targeting Isochron Scepter
3. Swarm Intelligence triggers, creating a copy of Burst of Energy, targeting Basalt Monolith
4. Resolve both Burst of Energies, untapping Isochron Scepter and Basalt Monolith
5. Repeat

Results

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