Isochron Scepter, Emerald Charm, and Swarm Intelligence

Prerequisites

• Isochron Scepter on the battlefield
• Emerald Charm in exile
• Swarm Intelligence on the battlefield
• You control a permanent that can tap to produce at least

Steps

1. Activate a permanent you control by tapping it, adding at least
2. Activate Isochron Scepter by paying and tapping it, casting a copy of Emerald Charm without paying its mana cost, targeting Isochron Scepter
3. Swarm Intelligence triggers, creating a copy of Emerald Charm, targeting the permanent that can tap to produce at least
4. Resolve both Emerald Charm copies, untapping Isochron Scepter and the permanent
5. Repeat

Results

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