How can you create a combo with Karn, Silver Golem, Salvaging Station, Grinding Station, Sol Ring?
user
[START OF COMBO]This combo can be formed with Karn, Silver Golem, Salvaging Station, Grinding Station, Sol Ring

Color identity: C
Mana cost: 
Steps:
  1. Activate Sol Ring by tapping it, adding {C}{C}.
  2. Activate Karn by paying {1}, causing Sol Ring to become an artifact creature until end of turn.
  3. Activate Grinding Station by tapping it and sacrificing Sol Ring.
  4. When Sol Ring dies, Salvaging Station triggers, untapping Salvaging Station.
  5. Resolve the Grinding Station ability, causing target player to mill three cards.
  6. Activate Salvaging Station by tapping it, returning Sol Ring from your graveyard to the battlefield.
  7. When Sol Ring enters the battlefield, Grinding Station triggers, untapping Grinding Station.
  8. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite colorless mana
  - Infinite death triggers
  - Infinite leaves the battlefield
  - Infinite mill
  - Infinite sacrifice triggers
  - Infinite self-mill[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
[END OF COMBO PREREQUISITES]
assistant