Teshar, Ancestor's Apostle + Scrap Trawler + Altar of Dementia + Welding Jar

Prerequisites

• There is at least one additional artifact on the battlefield.

Steps

1. 1Cast Welding Jar by paying its mana cost.
2. 2Teshar triggers, returning Scrap Trawler from your graveyard to the battlefield.
3. 3Activate Welding Jar by sacrificing it.
4. 4Activate Altar of Dementia by sacrificing Scrap Trawler.
5. 5When Scrap Trawler dies, it triggers, returning Welding Jar from your graveyard to your hand.
6. 6Resolve the Altar of Dementia ability.
7. 7Repeat.

Effects

• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite mill
• Infinite sacrifice triggers
• Infinite self-mill
• Infinite storm count