Myr Retriever, Workshop Assistant, Grinding Station, and Mycosynth Golem

Prerequisites

• Myr Retriever in the graveyard
• Workshop Assistant 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 Workshop Assistant
2. When Workshop Assistant 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 Workshop Assistant from your graveyard to your hand
8. Resolve the Grinding Station ability, causing target player to mill three cards
9. Cast Workshop Assistant by paying
10. When Workshop Assistant 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