Grinding Station + Memnite + Thassa's Oracle + Underworld Breach

Mana needed: {1}{U}{U}{R}

UR identity

Commander legal

The 4 combo pieces

What must be in place

You have four or more cards in your graveyard.

How to execute it

  1. Cast Underworld Breach.
  2. Activate Grinding Station by tapping it and sacrificing Memnite, milling yourself for three.
  3. Cast Memnite by exiling three cards from your graveyard that are not Thassa's Oracle.
  4. Grinding Station triggers, untapping itself.
  5. Repeat steps 2 to 4 until you have no cards in your library.
  6. Cast Thassa's Oracle.
  7. Thassa's Oracle triggers, winning you the game.

What the combo produces