Myr Retriever, Junk Diver, Ashnod's Altar, and Mycosynth Golem

Prerequisites

• Myr Retriever in the graveyard
• Junk Diver on the battlefield
• Ashnod's Altar on the battlefield
• Mycosynth Golem on the battlefield

Steps

1. Activate Ashnod's Altar by sacrificing Junk Diver, adding
2. Junk Diver dies, returning Myr Retriever from your graveyard to your hand
3. Cast Myr Retriever by paying
4. Activate Ashnod's Altar by sacrificing Myr Retriever, adding
5. Myr Retriever dies, returning Junk Diver from your graveyard to your hand
6. Cast Junk Diver by paying at most
7. Repeat

Results

• Infinite colorless mana
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers
• Infinite storm count