Teshar, Ancestor's Apostle, Myr Retriever, and Blasting Station

Prerequisites

• Teshar, Ancestor's Apostle on the battlefield
• Myr Retriever in the graveyard
• Blasting Station on the battlefield

Steps

1. Cast the 0-cost artifact creature by paying
2. Teshar triggers, returning Myr Retriever from your graveyard to the battlefield
3. Myr Retriever enters the battlefield, triggering Blasting Station and causing it to untap
4. The 0-cost artifact creature enters the battlefield, triggering Blasting Station
5. In response, activate Blasting Station by tapping it and sacrificing the 0-cost artifact creature, dealing 1 damage to any target
6. Resolve the Blasting Station trigger from step 4, untapping it
7. Activate Blasting Station by tapping it and sacrificing Myr Retriever
8. Myr Retriever triggers, returning the 0-cost artifact creature from your graveyard to your hand
9. Resolve the Blasting Station ability, dealing 1 damage to any target
10. Repeat

Results

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