Grinding Station + Saheeli, Sublime Artificer + Seething Song + Underworld Breach

Mana needed: {2}{R}

UR identity

Commander legal

The 4 combo pieces

What must be in place

You control at least one additional artifact.

How to execute it

  1. Activate Grinding Station by tapping it and sacrificing another artifact, causing you to mill three cards.
  2. Cast Seething Song from your graveyard for its escape cost by paying {2}{R} and exiling three other cards from your graveyard.
  3. Saheeli triggers, creating a 1/1 Servo artifact creature token.
  4. The Servo enters the battlefield, triggering Grinding Station, untapping Grinding Station.
  5. Resolve Seething Song, adding {R}{R}{R}{R}{R}.
  6. Repeat.

What the combo produces