Teshar, Ancestor's Apostle + Scrap Trawler + Megatog + Dark Sphere

Teshar, Ancestor's Apostle

Scrap Trawler

Megatog

Dark Sphere

How it works

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

This clever loop uses Teshar, Ancestor's Apostle and Scrap Trawler as a resilient engine to endlessly recycle cheap artifacts. By casting Dark Sphere, you trigger Teshar to pull Scrap Trawler straight out of your graveyard, allowing Megatog to cheerfully sacrifice that same Trawler to fuel its monstrous growth and send the artifact back to the graveyard. Because Dark Sphere has a lower mana value than Scrap Trawler, the Trawler's death trigger readily plucks the Dark Sphere right back to your hand so you can cast it all over again.