Frantic Search + Mesmeric Orb + Underworld Breach

UR identity

Commander legal

The 3 combo pieces

What must be in place

You have at least three other cards in your graveyard.
You control up to three lands that can tap to produce at least {2}{U}.

How to execute it

  1. Activate up to three lands by tapping them, adding at least {2}{U}.
  2. Cast Frantic Search for its escape cost by paying {2}{U} and exiling three other cards from your graveyard, causing you to loot twice and untap three lands.
  3. Mesmeric Orb triggers three times, causing you to mill three cards.
  4. Repeat.

What the combo produces