Gran-Gran + Rook Turret + Sensei's Divining Top

U identity

Commander legal

The 3 combo pieces

What must be in place

There are at least three Lesson cards in your graveyard.

How to execute it

  1. Cast Sensei's Divining Top by paying {0} due to Gran-Gran.
  2. When Sensei's Divining Top enters, Rook Turret triggers.
  3. Holding priority, activate Sensei's Divining Top by tapping it, causing you to draw a card and put Sensei's Divining Top on top of your library.
  4. Resolve the Rook Turret trigger, causing you to draw Sensei's Divining Top from your library, and then discard a card other than Sensei's Divining Top.
  5. Repeat

What the combo produces