Toph, the First Metalbender, Candelabra of Tawnos, and Gaea's Cradle

Prerequisites

• Toph, the First Metalbender on the battlefield
• Candelabra of Tawnos on the battlefield
• Gaea's Cradle on the battlefield

Steps

1. Activate Gaea's Cradle by tapping it, adding for each creature you control
2. Activate Candelabra of Tawnos by paying and tapping it, untapping Gaea's Cradle and Candelabra of Tawnos as it is a land due to Toph
3. Repeat

Results

• Infinite mana lands you control can produce
• Infinite green mana
• Infinite untap of lands you control
• Infinite untap of nontoken artifacts you control
• Infinite mana nontoken artifacts you control can produce