Phyrexian Altar + Symmetry Matrix + The Locust God

UR identity

Commander legal

The 3 combo pieces

What must be in place

You have a way to draw a card.

How to execute it

  1. Draw a card.
  2. The Locust God triggers, creating a 1/1 Insect creature token with flying and haste.
  3. The Insect enters the battlefield, triggering Symmetry Matrix.
  4. Holding priority, activate Phyrexian Altar by sacrificing the Insect, adding {1}.
  5. Resolve the Symmetry Matrix trigger, causing you to pay {1} to draw a card.
  6. Repeat from step 2.

What the combo produces