Ashnod the Uncaring + Bonecaller Cleric + Dockside Extortionist + Ashnod's Altar

Ashnod the Uncaring

Bonecaller Cleric

Dockside Extortionist

Ashnod's Altar

How it works

1. Activate Ashnod's Altar by sacrificing Dockside Extortionist, adding CC.
2. Activate Bonecaller Cleric by paying 3 and sacrificing it, targeting Dockside Extortionist.
3. Ashnod the Uncaring triggers, copying Bonecaller Cleric's ability, with the copy targeting Bonecaller Cleric.
4. Resolve both Bonecaller Cleric abilities, returning it and Dockside Extortionist to the battlefield from your graveyard.
5. When Dockside Extortionist enters the battlefield, it triggers, creating at least two Treasure artifact tokens.
6. Activate two Treasures by tapping and sacrificing them, adding 1.
7. Repeat.
8. If opponents control three or more artifacts and/or enchantments, this combo nets infinite Treasure tokens.

This cunning loop sets up an engine powered entirely by the corpses and treasures of your opponents' board state. By using Ashnod's Altar to sacrifice Dockside Extortionist and Bonecaller Cleric, you feed the mana requirements needed to recur them, while Ashnod the Uncaring doubles up on the Cleric's revival ability to bring *both* back simultaneously. As long as the opposing side has enough artifacts and enchantments to make the newly entering Dockside Extortionist pay for the loop, you can infinitely cycle everything through your graveyard and produce boundless colored and colorless mana.