Tom, Bert, and William, March of the Machines, and Grinding Station

Prerequisites

• Tom, Bert, and William on the battlefield
• March of the Machines on the battlefield
• Grinding Station on the battlefield

Steps

1. Activate Grinding Station by tapping it and sacrificing Tom, Bert, and William
2. When Tom, Bert, and William die, they trigger, returning them from your graveyard to the battlefield as a noncreature artifact
3. Because Tom, Bert, and William enter as a noncreature artifact, March of the Machines will then cause Tom, Bert, and William to be a 5/5 artifact creature
4. When Tom, Bert and William enter, Grinding Station triggers, untapping Grinding Station
5. Resolve the Grinding Station ability from step 1 Repeat

Results

• Infinite ETB
• Infinite LTB
• Infinite death triggers
• Infinite mill
• Infinite sacrifice triggers
• Infinite self-mill
• Infinite mana creatures you control can produce
• Infinite untap of creatures you control