Teshar, Ancestor's Apostle + Scrap Trawler + Krark-Clan Ironworks + Delif's Cone

Teshar, Ancestor's Apostle

Scrap Trawler

Krark-Clan Ironworks

Delif's Cone

How it works

1. Cast Delif's Cone by paying its mana cost.
2. Teshar triggers, returning Scrap Trawler from your graveyard to the battlefield.
3. Activate Delif's Cone by tapping and sacrificing it.
4. Activate Krark-Clan Ironworks by sacrificing Scrap Trawler.
5. When Scrap Trawler dies, it triggers, returning Delif's Cone from your graveyard to your hand.
6. Repeat.

This intricate loop hinges on an artifact recursion engine that turns low-cost artifacts into an endless stream of triggers and mana. You begin by casting Delif's Cone, which triggers Teshar, Ancestor's Apostle to pluck Scrap Trawler right out of your graveyard. By sacrificing Delif's Cone to its own ability and then feeding Scrap Trawler to Krark-Clan Ironworks, Scrap Trawler's death trigger fires off to return Delif's Cone straight back to your hand. Because Delif's Cone costs one mana to cast, the colorless mana generated by Krark-Clan Ironworks easily fuels the loop, letting you recast the Cone over and over to repeat the cycle indefinitely.