Isochron Scepter, Roar of the Kha, and Ioreth of the Healing House

Prerequisites

• Isochron Scepter on the battlefield
• Roar of the Kha in hand
• Ioreth of the Healing House on the battlefield

Steps

1. Activate any number of creatures by tapping them, adding at least
2. Activate Isochron Scepter by paying and tapping it, casting a copy of Roar of the Kha without paying its mana cost
3. Resolve Roar of the Kha, untapping all creatures you control Activate Ioreth of the Healing House by tapping it, untapping Isochron Scepter
4. Repeat

Results

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