Sharuum the Hegemon, Technomancer, and Yahenni, Undying Partisan

Prerequisites

• Sharuum the Hegemon in hand or in the command zone
• Technomancer in the graveyard
• Yahenni, Undying Partisan on the battlefield
• plus commander tax if applicable available

Steps

1. Cast Sharuum either from your hand or from the command zone by paying plus commander tax if applicable
2. When Sharuum enters the battlefield, it triggers, targeting Technomancer
3. Holding priority, activate Yahenni by sacrificing Sharuum
4. Resolve the Sharuum trigger, returning Technomancer from your graveyard to the battlefield
5. When Technomancer enters the battlefield, it triggers
6. Holding priority, activate Yahenni by sacrificing Technomancer
7. Resolve the Technomancer trigger, causing you to mill three cards and return Sharuum from your graveyard to the battlefield
8. Repeat from step 2

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite self-mill