Toph, the First Metalbender, Master Transmuter, Retreat to Coralhelm, and Chromatic Orrery

Prerequisites

• Toph, the First Metalbender on the battlefield
• Master Transmuter on the battlefield
• Retreat to Coralhelm on the battlefield
• Chromatic Orrery on the battlefield

Steps

1. Activate Chromatic Orrery by tapping it, adding Activate Master Transmuter by paying , tapping it and returning Chromatic Orrery from the battlefield to your hand, putting Chromatic Orrery onto the battlefield
2. When Chromatic Orrery enters, Retreat to Coralhelm triggers, as Chromatic Orrery is a land due to Toph, untapping Master Transmuter
3. Repeat

Results

• Infinite card draw
• Infinite colored mana
• Infinite colorless mana
• Infinite draw triggers
• Infinite landfall triggers