Teshar, Ancestor's Apostle, Aether Channeler, Mana Vault, and Blasting Station

Prerequisites

• Teshar, Ancestor's Apostle on the battlefield
• Aether Channeler on the battlefield
• Mana Vault on the battlefield
• Blasting Station on the battlefield

Steps

1. Activate Blasting Station by tapping it and sacrificing Aether Channeler, dealing 1 damage to any target
2. Activate Mana Vault by tapping it, adding
3. Cast the other artifact with MV<=2 by paying at most
4. Teshar triggers, returning Aether Channeler from your graveyard to the battlefield
5. When Aether Channeler enters the battlefield, it and Blasting Station trigger
6. Resolve the Aether Channeler trigger, returning Mana Vault from the battlefield to your hand
7. Resolve the Blasting Station trigger, untapping it
8. Activate Blasting Station by tapping it and sacrificing Aether Channeler, dealing 1 damage to any target
9. Cast Mana Vault by paying
10. Teshar triggers, returning Aether Channeler from your graveyard to the battlefield
11. When Aether Channeler enters the battlefield, it and Blasting Station trigger
12. Resolve the Aether Channeler trigger, returning the other artifact from the battlefield to your hand
13. Resolve the Blasting Station trigger, untapping it
14. Repeat

Results

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