Teshar, Ancestor's Apostle + Scrap Trawler + Ravenous Intruder + Welding Jar

Teshar, Ancestor's Apostle

Scrap Trawler

Ravenous Intruder

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 Ravenous Intruder by sacrificing Scrap Trawler.
5. When Scrap Trawler dies, it triggers, returning Welding Jar from your graveyard to your hand.
6. Resolve the Ravenous Intruder ability.
7. Repeat.

This clever loop transforms a humble one-mana artifact into an engine of endless sacrifices. By casting Welding Jar, you trigger Teshar, Ancestor's Apostle to continually resurrect Scrap Trawler from the graveyard. Meanwhile, Ravenous Intruder provides a free sacrifice outlet to send Scrap Trawler to the grave, whose own ability ensures Welding Jar immediately bounces back to your hand for another iteration.