Teshar, Ancestor's Apostle + Scrap Trawler + Ashnod's Altar + 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 Ashnod's Altar by sacrificing Scrap Trawler.
5. 5When Scrap Trawler dies, it triggers, returning Welding Jar from your graveyard to your hand.
6. 6Repeat.

Effects

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