Bygone Bishop + Myr Retriever + Workshop Assistant + Krark-Clan Ironworks

Bygone Bishop

Myr Retriever

Workshop Assistant

Krark-Clan Ironworks

How it works

1. Activate Krark-Clan Ironworks by sacrificing Workshop Assistant, adding CC.
2. When Workshop Assistant dies, it triggers, returning Myr Retriever from your graveyard to your hand.
3. Cast Myr Retriever by paying 2.
4. Bygone Bishop triggers, creating a Clue artifact token.
5. Activate Krark-Clan Ironworks twice by sacrificing the Clue and Myr Retriever, adding CCCC.
6. When Myr Retriever dies, it triggers, returning Workshop Assistant from your graveyard to your hand.
7. Cast Workshop Assistant by paying 3.
8. Bygone Bishop triggers, creating a Clue artifact token.
9. Repeat.

This ingenious loop relies on a recursive death-trigger cycle between Workshop Assistant and Myr Retriever, where each artifact creature perpetually fishes the other back out of your graveyard upon its demise. Krark-Clan Ironworks serves as the engine's core furnace, sacrificing these metallic companions—along with the Clue tokens generated along the way—to continually churn out a surplus of colorless mana. Meanwhile, Bygone Bishop watches over the entire assembly, capitalizing on every low-mana creature spell cast during the loop to flood your board with endless investigatory rewards.