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

Teshar, Ancestor's Apostle

Scrap Trawler

Lion's Eye Diamond

Grinding Station

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. When Scrap Trawler and Lion's Eye Diamond enter, Grinding Station triggers twice, untapping Grinding Station.
4. Activate Lion's Eye Diamond by discarding your hand and sacrificing it.
5. Activate Grinding Station by tapping it and sacrificing Scrap Trawler.
6. When Scrap Trawler dies, it triggers, returning Lion's Eye Diamond from your graveyard to your hand.
7. Resolve the Grinding Station ability.
8. Repeat.

This clever loop spins up endless colored mana and infinite mill by turning graveyard recursion into a self-sustaining engine. Teshar, Ancestor's Apostle acts as the heartbeat of the operation, resurrecting Scrap Trawler directly to the battlefield every time you cast Lion's Eye Diamond as a historic spell. Meanwhile, Scrap Trawler's ability continuously recycles that same Lion's Eye Diamond back to your hand each time the artifact is sacrificed, while Grinding Station untaps itself to feed the sacrifice loop and churn through your library.