Myr Retriever, Junk Diver, Grinding Station, and Mycosynth Golem

Prerequisites

• Myr Retriever in the graveyard
• Junk Diver on the battlefield
• Grinding Station on the battlefield
• Mycosynth Golem on the battlefield
• You control at least one additional artifact

Steps

1. Activate Grinding Station by tapping it and sacrificing Junk Diver
2. When Junk Diver dies, it triggers, returning Myr Retriever from your graveyard to your hand
3. Resolve the Grinding Station ability, causing target player to mill three cards
4. Cast Myr Retriever by paying
5. When Myr Retriever enters the battlefield, Grinding Station triggers, untapping Grinding Station
6. Activate Grinding Station by tapping it and sacrificing Myr Retriever
7. When Myr Retriever dies, it triggers, returning Junk Diver from your graveyard to your hand
8. Resolve the Grinding Station ability, causing target player to mill three cards
9. Cast Junk Diver by paying
10. When Junk Diver enters the battlefield, Grinding Station triggers, untapping Grinding Station
11. Repeat

Results

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