Technomancer + Grinding Station + Synth Infiltrator
Technomancer
Grinding Station
Synth Infiltrator
Infinite artifact ETBInfinite artifact LTBInfinite artifact sacrifice triggersInfinite creature LTBInfinite creature ETBInfinite creature sacrifice triggersInfinite death triggersInfinite millInfinite self-millPut all artifact creature cards with mana value 1 or less from your library onto the battlefieldPut all artifact creature cards with mana value 1 or less from your graveyard onto the battlefield
How it works
Cast Technomancer by paying 5.
When Technomancer enters, it and Grinding Station trigger.
Resolve the Grinding Station trigger, untapping it.
Resolve the Technomancer trigger, causing you to mill three cards and return Synth Infiltrator from your graveyard to the battlefield as a copy of Technomancer.
When Synth Infiltrator enters, it and Grinding Station trigger.
Resolve the Grinding Station trigger, untapping it.
Holding priority, activate Grinding Station by tapping it and sacrificing Synth Infiltrator.
Resolve the Synth Infiltrator trigger, causing you to mill three cards and return Synth Infiltrator from your graveyard to the battlefield as a copy of Technomancer.