Ashnod's Altar + Myr Retriever + Urtet, Remnant of Memnarch + Workshop Assistant

WUBRG identity

Commander legal

The 4 combo pieces

How to execute it

  1. Activate Ashnod's Altar by sacrificing Workshop Assistant, adding {C}{C}.
  2. When Junk Diver dies, it triggers, returning Myr Retriever from your graveyard to your hand.
  3. Cast Myr Retriever by paying {2}.
  4. Urtet's first ability triggers, creating a 1/1 Myr artifact creature token.
  5. Activate Ashnod's Altar twice by sacrificing Myr Retriever and the Myr token, adding {C}{C}{C}{C}.
  6. When Myr Retriever dies, it triggers, returning Workshop Assistant from your graveyard to your hand.
  7. Cast Workshop Assistant by paying {3}.
  8. Repeat.
  9. Once you have infinite colorless mana, you may forego sacrificing the Myr tokens.

What the combo produces