Mortuary, Grinding Station, Ornithopter, and Gwenom, Remorseless

Prerequisites

• Mortuary on the battlefield
• Grinding Station on the battlefield
• Ornithopter on the battlefield
• Gwenom, Remorseless on the battlefield

Steps

1. Activate Grinding Station by tapping it and sacrificing Ornithopter When Ornithopter dies, Mortuary triggers, putting Ornithopter from your graveyard onto the top of your library
2. Resolve the Grinding Station ability
3. Cast Ornithopter from the top of your library by paying 0 life
4. When Ornithopter enters, Grinding Station triggers, untapping Grinding Station
5. Repeat

Results

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