How can you create a combo with Myr Retriever, Scrap Trawler, Grinding Station, Mycosynth Golem?
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[START OF COMBO]This combo can be formed with Myr Retriever, Scrap Trawler, Grinding Station, Mycosynth Golem

Color identity: C
Mana cost: 
Steps:
  1. Activate Grinding Station by tapping it and sacrificing Scrap Trawler.
  2. When Scrap Trawler dies, it triggers, returning Myr Retriever from your graveyard to your hand.
  3. Resolve the Grinding Station ability, causing target player to mill three cards.
  4. Cast Myr Retriever by paying {0}.
  5. When Myr Retriever enters the battlefield, Grinding Station triggers, untapping Grinding Station.
  6. Activate Grinding Station by tapping it and sacrificing Myr Retriever.
  7. When Myr Retriever dies, it triggers, returning Scrap Trawler from your graveyard to your hand.
  8. Resolve the Grinding Station ability, causing target player to mill three cards.
  9. Cast Scrap Trawler by paying {0}.
  10. When Scrap Trawler enters the battlefield, Grinding Station triggers, untapping Grinding Station.
  11.  Repeat.[END OF COMBO STEPS]

Result:
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite mill
  - Infinite sacrifice triggers
  - Infinite self-mill
  - Infinite storm count[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Myr Retriever must be in the graveyard
  - Scrap Trawler must be on the battlefield
  - Grinding Station must be on the battlefield
  - Mycosynth Golem must be on the battlefield
  - You control at least one additional artifact.
[END OF COMBO PREREQUISITES]
assistant