Teshar, Ancestor's Apostle + Scrap Trawler + Sarcatog + Lion's Eye Diamond

Teshar, Ancestor's Apostle

Scrap Trawler

Sarcatog

Lion's Eye Diamond

How it works

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

This ingenious loop turns a simple artifact sacrifice into a perpetual motion machine fueled by Teshar, Ancestor's Apostle, whose historic trigger resurrects Scrap Trawler from the graveyard every time Lion's Eye Diamond is cast. When you feed that Scrap Trawler to Sarcatog's sacrifice ability, the dying robot's own scrap-retrieval trigger brings the Lion's Eye Diamond right back to your hand, ready to be re-cast and net an endless supply of colored mana and triggers. Sarcatog itself acts as the graveyard-cleaning sacrifice outlet that makes the loop self-sustaining, while also growing infinitely large should you want to turn your infinite mana and artifact churn into a lethal attack.