Teshar, Ancestor's Apostle + Scrap Trawler + Sarcatog + Welding Jar

Teshar, Ancestor's Apostle

Scrap Trawler

Sarcatog

Welding Jar

How it works

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

This recursive engine loops a tiny artifact to constantly trigger the graveyard recursion of Teshar, Ancestor's Apostle while feeding Scrap Trawler's ability. You start by casting Welding Jar, which triggers Teshar to pull Scrap Trawler back from your graveyard to the battlefield. Next, you activate Welding Jar to sacrifice itself, then sacrifice Scrap Trawler to Sarcatog's ability. That death triggers Scrap Trawler, returning the Welding Jar right back to your hand so you can cast it all over again—all while Sarcatog grows infinitely large from the constant creature and artifact sacrifices.