Sharuum the Hegemon + Technomancer + Altar of Dementia

Sharuum the Hegemon

Technomancer

Altar of Dementia

How it works

1. Cast Sharuum either from your hand or from the command zone by paying 3 plus commander tax if applicable.
2. When Sharuum enters the battlefield, it triggers, targeting Technomancer.
3. Holding priority, activate Altar of Dementia 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 Altar of Dementia 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.