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

Teshar, Ancestor's Apostle

Scrap Trawler

Lion's Eye Diamond

Phyrexian Altar

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 Phyrexian Altar by sacrificing Scrap Trawler.
5. When Scrap Trawler dies, it triggers, returning Lion's Eye Diamond from your graveyard to your hand.
6. Repeat.

This loop turns the graveyard into a tireless workshop by leveraging Teshar, Ancestor's Apostle and its ability to resurrect small threats whenever you cast a historic spell like Lion's Eye Diamond. As you sacrifice the recast Lion's Eye Diamond for mana and use Phyrexian Altar to sacrifice the newly returned Scrap Trawler, Scrap Trawler's own recursion trigger steps in to pull the Lion's Eye Diamond right back to your hand. Every single piece is vital to keeping the cycle closed: Lion's Eye Diamond fuels the mana and counts as a historic spell, Scrap Trawler bridges the artifact recovery gap, Teshar, Ancestor's Apostle continuously rebuilds your board from the yard, and Phyrexian Altar provides both the necessary sacrifice outlet and the colored mana generation to repeat the process infinitely.