Teshar, Ancestor's Apostle, Sol Ring, Scrap Trawler, and Extruder

Prerequisites

• Teshar, Ancestor's Apostle on the battlefield
• Sol Ring in hand
• Scrap Trawler in the graveyard
• Extruder on the battlefield
• available

Steps

1. Cast Sol Ring by paying
2. Teshar triggers, returning Scrap Trawler from your graveyard to the battlefield
3. Activate Sol Ring by tapping it, adding
4. Activate Extruder by sacrificing Sol Ring
5. When Sol Ring leaves the battlefield, Scrap Trawler triggers, returning any mana value 0 artifact from your graveyard to the battlefield
6. Resolve the Extruder ability
7. Activate Extruder by sacrificing Scrap Trawler
8. When Scrap Trawler dies, it triggers, returning Sol Ring from your graveyard to the battlefield
9. Resolve the Extruder ability
10. Repeat

Results

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