Mirrorworks, Ashnod's Altar, and Myr Retriever

Prerequisites

• Mirrorworks on the battlefield
• Ashnod's Altar on the battlefield
• Myr Retriever in hand
• available

Steps

1. Cast Myr Retriever
2. Mirrorworks triggers
3. In response to the trigger, sacrifice Myr Retriever to Ashnod's Altar, adding
4. Resolve the Myr Retriever death trigger with no targets
5. Pay for Mirrorworks' trigger, creating a token copy of Myr Retriever
6. Sacrifice the token copy of Myr Retriever to Ashnod's Altar, adding
7. The token copy of Myr Retriever triggers, returning Myr Retriever from your graveyard to your hand
8. Repeat

Results

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