Teshar, Ancestor's Apostle, Sol Ring, Scrap Trawler, and Krark-Clan Ironworks

Prerequisites

• Teshar, Ancestor's Apostle on the battlefield
• Sol Ring in hand
• Scrap Trawler in the graveyard
• Krark-Clan Ironworks 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 Krark-Clan Ironworks 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. Activate Krark-Clan Ironworks by sacrificing Scrap Trawler
7. When Scrap Trawler dies, it triggers, returning Sol Ring from your graveyard to the battlefield
8. Repeat

Results

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