Crime Novelist + Krark-Clan Ironworks + Myr Retriever + Scrap Trawler

R identity

Commander legal

The 4 combo pieces

What must be in place

One of the artifact creatures must be on the battlefield, with the other in your graveyard.

How to execute it

  1. Activate Krark-Clan Ironworks by sacrificing the artifact creature, adding {C}{C}.
  2. When the artifact creature dies, it and Crime Novelist trigger.
  3. Resolve the artifact creature's trigger, returning the other artifact creature from your graveyard to your hand.
  4. Resolve the Crime Novelist trigger, adding {R} and putting a +1/+1 counter on it.
  5. Cast the artifact creature from your hand by paying its mana cost.
  6. Repeat.

What the combo produces