Mm'menon, Uthros Exile, Lesser Masticore, and Grinding Station

Prerequisites

• Mm'menon, Uthros Exile on the battlefield
• Lesser Masticore on the battlefield
• Grinding Station on the battlefield

Steps

1. Activate Grinding Station by tapping it and sacrificing Lesser Masticore
2. When Lesser Masticore dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it
3. When Lesser Masticore enters, Grinding Station and Mm'menon trigger
4. Resolve the Grinding Station trigger, untapping it
5. Resolve the Mm'menon trigger, putting a +1/+1 counter on Lesser Masticore
6. Resolve the Grinding Station ability from step 1
7. Repeat

Results

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