Derevi, Empyrial Tactician, Faeburrow Elder, and Elesh Norn, Mother of Machines

Prerequisites

• Derevi, Empyrial Tactician in the command zone
• Faeburrow Elder on the battlefield
• Elesh Norn, Mother of Machines on the battlefield
• undefined available

Steps

1. Activate Faeburrow Elder by tapping it, adding at least
2. Activate Derevi by paying , putting it onto the battlefield from the command zone
3. Put Derevi into your graveyard due to the legend rule, and then choose to return Derevi to the command zone
4. Derevi's enters-the-battlefield ability triggers twice due to Elesh Norn
5. Resolve the first trigger, untapping Faeburrow Elder
6. Holding priority, activate Faeburrow Elder by tapping it, adding at least
7. Resolve the second Derevi trigger, untapping Faeburrow Elder
8. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite green mana
• Infinite blue mana
• Infinite mana permanents you control can produce
• Infinite untap of permanents you control
• Infinite white mana